2NH4Cl(aq) + CaO(s) —> __H2O (l) + CaCl2 (aq)

which expression completes the balanced equation?

Answers

Answer 1
CaCI2 (aq) seems to be correct.

Related Questions

Chiara knows that weight is affected by gravitational pull. She is putting together a poster to display in her classroom.

Since the moon's gravity is less than Earth's, all objects, including mammals, have different weights on the moon than on Earth. Use the table below to calculate how much a dog weighs on the moon.

Answers

Answer: A

Explanation: 150 lb * 1/6 = 25 lb

Chiara knows that weight is affected by gravitational pull. The weight of the dog on the moon is 25 lb. The correct option is A.

What is gravitational pull?

Gravitational pull is the force of gravitation that pulls all the objects towards themselves. The force of gravitation is different on different planets, and on the moon, the gravitational pull of the moon is lesser than the earth.

The weight of the dog on the earth is 150 lb

The weight of any object on the moon is 1/6th of the weight of any object on the earth.

So to calculate the weight of the object on the moon, we should multiply the given weight of the dog on the moon by 1/6 to get the result.

150 lb x 1/6 = 25 lb

Thus, the weight of the dog on the moon is 25 lb. The correct option is A.

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Scientists believe that the modern horse developed from a short, horse-like mammal about the size of a dog. Over millions of years, the horse increased in size and developed much longer legs. Horses with longer legs had a better chance of surviving than the shorter-legged members of the herd. How did longer legs help horses survive?

A. They allowed the horses to reach nuts in trees.

B. They allowed the horses to outrun predators.

C. They allowed the horses to carry more body weight.

D. They allowed the horses to capture prey.

Answers

Answer:

B

Explanation:

Horses with longer legs could out run predators and survive. Not getting eaten or injured helps with staying alive long enough to reproduce.

The graphs show temperature and precipitation information for an area.



Which biome best describes the area represented by the graphs shown?

Answers

Answer:

Desert

Hope I helped

Which unit conversion allows you to convert 21.0 gallons into milliliters?


Some English and English-metric unit relationships: 1 liter = 1.057 quarts, 1 gallon = 4 quarts

Answers

Answer:

Explanation:

we are given

there are in 0.073 gallons

we can see that there are two non-zero places after decimals

so, there are two siginificant figures

step-1: Change gallons to quarts

we know that

1 gallon = 4 quarts

so, we can write as

step-2: Change into liter

we know that

1 liter = 1.057 quarts

or

step-3: Change into millilitre

we know that

Since, it is asking for only two significant figures

so, we can also write as

...................Answer

Please answer the following question I give you.

1. What do waves begin with? (this is science)
2. What do waves transfer?
3.What do waves not transfer?

Answers

Answer:

1.Waves are caused by wind

2. energy

3. matter

Answer: Wave is a common term for a number of different ways in which energy is transferred; so in electromagnetic waves, so the energy is transferred through vibrations of electric and magnetic field.  Does that answer your question.

Explanation:

That is my answer

Which statement best describes the motion of

the dye molecules in the water?

The dye molecules

o move in a directed way from high to low

concentration.

o move randomly through collisions in no

particular direction.

stay close to other dye molecules as they

move through the water.

Low

Check ansive

Answers

Answer:The statement that best describes the motion of dye molecule in water is directed from a region of high to low concentration. The motion of the particles of the dye in water is described as diffusion: diffusion is the movement of molecules of a substance from one position to another.

Explanation:

Option A is correct. The statement that best describes the motion of  the dye molecules in the water is "the dye molecules move in a directed way from high to low".

The motion of dye molecules in water is known to be random. Another name for random motion is Brownian motion and since diffusion is also Brownian motion, hence we can term the motion of the dye molecules in the water as "diffusion".

The water is held together by intermolecular forces and these forces are the ones that attract the molecules of the die carrying them away and making the process of molecular transport of the dye to be accelerated (moving from a region of high concentration to low concentration).

In conclusion, the statement best describes the motion of  the dye molecules in the water is "the dye molecules move in a directed way from high to low".

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Object A has a mass of 600 kg. Object B has a mass of 200 kg. They are both pushed with 10 Newtons of
force. Which of the following STATEMENTS is true?
A. Object A will accelerate more slowly than object B.
B. Object A has less mass than object B.
C. Both objects will accelerate at the same speed.
D. Object A will accelerate more quickly than object B.

Answers

Answer: D

Explanation:

A has more kg/mass than B

D because Object A did way faster than B

Is acetaminophen an ionic or molecular compound? Explain your answer in complete sentences.

Answers

Answer:

Acetaminophen is a molecular compound and not an ionic compound.

Explanation:

The formula of this compound is C₈H₉NO₂. Ionic compounds are formed between metals and nonmetals. In molecular compound the bond type is covalent.

A spring-fed stream forms a pond that contains watercress plants, minnows, and crayfish. The pond receives 5 hours of direct sunlight every day. Which of the following is an abiotic factor in this ecosystem?
the pond water

the watercress plants

the minnows

the crayfish

Answers

Answer:

the minnows

Explanation:

The minnows is an abiotic factor in the ecosystem Hence option 3 is correct.

What is ecosystem?

Ecosystem is defined as a structural and functional area of ecology where living things engage in interactions with one another and their surroundings. Ecosystem function refers to a system's capacity to directly or indirectly satisfy human wants for goods and services. Ecosystem functions are thought of as a subset of ecological processes and ecosystem structures.

The non-living elements of an ecosystem known as abiotic variables have an impact on their surroundings. Examples include temperature, light, and water in a terrestrial setting. Ocean currents and salinity are examples of abiotic components in a marine ecosystem.

Thus, the minnows is an abiotic factor in the ecosystem Hence option 3 is correct.

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What have all living things evolved from?

Coprolites
Earlier species
Fossils in rocks
Shells

Answers

Answer:

Coprolites.........!!!

Answer:

all living beings are involved from early spices

the air pressure from the atmosphere measures 0.5atm at an altitude of 18,000 ft. How much pressure is this in pounds per square inch?

Answers

Answer:

7.5 pounds per square-inch

At sea level, one square-inch of any surface has about 15 pounds of air sitting on top of it. At 18,000 feet, that same square inch has only 7.5 pounds per square-inch (psi) exerted on it.

The air pressure from the atmosphere measures 0.5atm at an altitude of 18,000 ft. than the pressure will be 7.5 pounds per square-inch.

What is the calculation at sea level?

At sea level, one square-inch of any surface has about 15 pounds of air sitting on top of it. At 18,000 feet, that same square inch has only 7.5 pounds per square-inch (psi) exerted on it.

As the altitude increases, the atmospheric pressure increases. It's actually the opposite: from the graph, we see that as the altitude increases (going towards right on the graph), the pressure decreases.

The atmospheric pressure is 14 pounds per square inch at sea level.If we take altitude=0, we see that the value of the pressure is 14 pounds per square inch. As the altitude approaches sea level, the atmospheric pressure increases.

As the altitude approaches sea level we see that the value of the pressure increases. The atmospheric pressure gets close to 14 pounds per square foot as the altitude continues to increase.The pressure is 14 pounds per square inch only when the altitude is 0 miles above sea level.

Therefore, The air pressure from the atmosphere measures 0.5atm at an altitude of 18,000 ft. than the pressure will be 7.5 pounds per square-inch.

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Order these by size/complexity in descending order. (largest/most complex on top) Reorder answers
1. DNA Reorder answers
2. Cells Reorder answers
3. Atoms Reorder answers
4. Chromosomes ODER THEM PLEASE!!

Answers

Answer:

1)Cells

2)Chromosomes

3)DNA

4)Atoms

Explanation:

Match the term with its description.
answer choices

Aerobic respiration
Alcoholic fermentation
Anaerobic respiration
Lactic acid fermentation

The production of energy without the presence of oxygen

A process that converts sugars into cellular energy, ethanol, and carbon dioxide

A process that converts sugars into cellular energy, ethanol, and carbon dioxide

The breakdown of food to create energy in the presence of oxygen

Answers

Answer:

Aerobic respiration is metabolic process in which food ( glucose) is metabolized ( in presence of oxygen) to derive large amount of energy ( in the form of ATP) through a series of three stages that is glycolysis, kreb cycle, and electron transport chain.

Anaerobic respiration another from of cellular respiration where food is broken down to derive energy in the absence of oxygen.

Alcoholic fermentation is a metabolic process by which sugar is converted into cellular energy ( in the form of ATP), ethanol, and carbon dioxide.

Lactic acid fermentation is a metabolic process by which glucose is converted into cellular energy and lactic acid.

Thus, the correct match is-

Aerobic respiration- A) The breakdown of food to create energy in the presence of oxygen.

Alcoholic fermentation- C) A process that converts sugars into cellular energy, ethanol, and carbon dioxide.

Anaerobic respiration- B) The production of energy without the presence of oxygen.

Lactic acid fermentation- D) A process that converts glucose into cellular energy and lactic acid.

Explanation:

Answer:

Aerobic respiration – The breakdown of food to create energy in the presence of oxygen

Alcoholic fermentation – A process that converts sugars into cellular energy, ethanol, and carbon dioxide

Anaerobic respiration – The production of energy without the presence of oxygen

Lactic acid fermentation – A process that converts glucose into cellular energy and lactic acid

view pics for proof :)

PLZ HELP! :) thank you

Answers

Answer:

biotic

Explanation:

because all of them are living

Why do lows appear where there are more clouds and Highs appear where it is clear? (EXPLAIN)

Answers

if you mean temperature wise then it’s due to the clouds absorbing most of the sunlight, less clouds let’s more light through

Oxygen has 8 positively-charged protons. What is the number of negatively-charged electrons in an atom of Oxygen?

Answers

Answer:

Answer 9: Oxygen is atomic number 8 on the periodic table, which means it has 8 protons!

Explanation:

Oxygen's 8 electrons are negatively charged, and they orbit the atomic nucleus and balance the positive charge of the 8 protons. The positive charge of 1 proton exactly cancels the negative charge of 1 electron.

8

because the positive and negative atoms always valence out.

hope this helps!

Complete the sentences to identify the difference between a nonmetal atom and its anion.


In an anion, there are more *blank* than *blank*, giving the anion a *blank* charge.

In nonmetal atoms, the number of *blank* and *blank* are the same and there is a *blank* charge.


key bank:

- a positive

- no net

- electrons

- protons

- a negative

- neutrons

Answers

Answer:

more protons than neutrons and the number of electrons  and blank are blank

Explanation:

The complete sentences that distinguish the difference between a nonmetal atom and its anion are as follows:

In an anion, there are more electrons than protons, giving the anion a negative charge. In nonmetal atoms, the number of protons and neutrons are the same and there is a negative charge.

What are Non-metals?

Non-metals may be defined as the type of chemical element that lacks the characteristics of a metal. They do not show any metallic attributes. But in the periodic table, they range from colorless gases to shiny and high melting point solids.

In the whole periodic table, elements are classified into three parts. They are metals, non-metals, and metalloids. Each classification has its own attributes and characteristic properties.

The non-metals significantly gain electrons due to their stronger nuclear charge and become negatively charged anions.

Therefore, the complete sentences that distinguish the difference between a nonmetal atom and its anion are appropriately described.

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which energy source is a free resource that produces no greenhouse gases?
solar
wind
water
biomass
or geothermal?

Answers

I think it’s solar but I’m sorry if that’s wrong :)
Solar is the answer

Answer all of dem Free BRAINIEST ON THE ROLL

Answers

T, F, T, T, F



Explain:


Help asapppppppppp plsssssssssssss

Answers

One there is one atom
There is one N atom

How do microorganisms influence the chemical characteristics of soil? Explain Please.

Answers

Answer:

Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.

Explanation:

Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.

A rock with different fossils is shown below:

A diagram labeled Fossil Layers is shown. The topmost layer is labeled Fish and shows the skeleton of a fish, the second layer from the top is labeled Shell and shows a shell, the third layer from the top is labeled Fern and shows a fern leaf, and the lowermost layer is labeled oak and shows an oak leaf

Based on the fossil, which organism evolved first?

Fern
Fish
Oak
Shell

Answers

i think it’s oak because the oldest fossils are usually at the bottom
oak because the oldest organism is at the bottom, which forms first

What determines how much a substance will change temperature?

Answers

Answer:

it depends on the mass of the situation

Explanation:

The heat Q transferred to cause a temperature change depends on the magnitude of the temperature change, the mass of the system, and the substance and phase involved

________ are __________ for inherited traits.
PLSS ANSWER ASAP I BEG

Answers

Answer:

looks and cancer

Explanation:

you look like your parents and desises can be inhereted

what s thisssss oneeeeeee

Answers

C
Explanation- equals 459

i can't figure this out, can someone help me?

Answers

Answer:

No

Explanation: I don’t know what to do

Number 4.

Explanation:
Because every element is balanced on both sides.
There’s 1 carbon in the reactant and 1 in the product.
There’s 4 hydrogen in the reactant and 4 on the product.
There’s 4 oxygen in the reactant and 4 in the product.

• __________ genotype are two __________ (AA) or two __________ (aa) alleles.
• _________ are a pair of ________ alleles (Aa).
PLEASE ASWEER ASAP I BEG YOUU POLSSSDSD U WILL GET BRAINLIEST

Answers

It’s not letting me answer

What happens to the reaction rate as the reactants get used up in a reaction?

O

A. The rate of the reaction is not affected by the concentration of

reactants.

B. The rate of the reaction increases steadily as products are formed.

O

O

O

C. The rate of the reaction begins to decrease as reactants are used

up

O

D. The rate of the reaction stays constant until the reactants are

gone.

Answers

The rate of the reaction depicts the speed at which the reaction occurs to produce the products. As the reactants get used up the reaction rate starts decreasing. Thus, option C is correct.

What are the factors affecting reaction rate?

The reaction rate of the chemical reaction gets affected by numerous factors that include temperature, the concentration of the reactants, catalyst, surface area, and physical state of the reactant.

The concentration of the reactant has a direct effect on the reaction rate as they are the deciding factor of the product formation. At the beginning of the reaction, the speed is fast compared to the end.

As the reactants start getting used up the reaction rate slows down as the molecules are not able to collide faster with other molecules to form the product.

Therefore, in option C. the reaction rate decreases with a decrease in concentration.

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How do organisms that can’t make their own glucose through photosynthesis, get glucose?

Answers

Answer:

All explained on the site! Just cope and paste!

Explanation:

https://ssec.si.edu/stemvisions-blog/what-photosynthesis

Hope this helped!

why do we have night and day? (i can't find science so i just put it in chemistry)

Answers

Answer:

So we get to go to sleep in my opinion. And because the world all have sunlight at different times. So it makes sense to have separate times of the day. Night and day also this is most likely one reason for why we do have days.

Explanation:

it’s because we have different times that we get sunlight at in different places.

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HELPP HURRY PLEASE Why did it take longer to elect a Republican senator than it did a House representative? Which of the following occurs when glaciers melt?Answer Choices 1. rising2. sea levels3. falling sea levels4. earthquakes5. tsunamis A genetically engineered hormone,___________, can treat Marys child for growth hormone deficiencies by stimulating body growth and increasing muscle mass. Which were considered Proxy Wars between the U.S. and Soviet Union?Cold WarGulf WarKorean WarWorld War IIVietnam War Write an equation in point-slope form and slope-intercept form for each line.1. passes through (4, 7), slope = 22. passes through (2, 1), slope = 43. passes through (8, 4), slope = 1/2 Please help asap i dont understand this . A boy wishes to throw a ball through a house via two small openings, one in the front and the other in the back window, the second window being directly behind the first. If the boy stands at a distance of 5m in front of the house and the house is 6m deep and if the opening in the front window is 5m above him and that in the back window 2m higher, calculate the velocity and the angle of projection of the ball that will enable him to accomplish his desire. in what place the performers usually perform their music medieval Write a linear function f with the given values f(-3)=5, f(-1)=5 A phone company charges $67 for monthly access and $14 for each gigabyte of data used. If you sign a two-year contract and use 147.5 gigabytes of data, what is the total amount you will pay for phone service? Which expression is equivalent to 15x + 3? 6. Which of the following does NOT possess a double circulation pathway?A CarC. milkfishD. parrotB. dog write your own letter of application to a man a woman who sent a gift to you through your father why sounds hear clearly at night than day? No one give proper answer. HELP ASAP!!! The gravitational pull of the Moon is much less than thegravitational pull of Earth.Which two statements are true for an object with a mass of 20 kilograms thatweighs 44 pounds on Earth?O A The object's weight would be the same on the MoonB. The object's weight would be less on the MoonC. The object's mass would be the same on the MoonDD. The object's mass would be less on the Moon what is the cheapest way to buy 48 cans of cola Read the paragraph from the section "Pea Plants And The Punnett Square."A pea plant could have one copy of the height gene that coded for "tall" and one copy of the height gene that coded for"short." The tall allele is "dominant," and this means that it can mask the other allele. The short allele is called"recessive." The allele combination of tall-short would result in a tall plant since the tall allele is dominant.Which option is the BEST definition of the word "mask" as used in the paragraph above? Attempt 2Four marbles are made of different metals. Each marble has the same mass, but a different volume. The density of eachmetal is given in the table.MetalDensity (g/mL)aluminum2.70silver10.5rhenium20.8nickel8.90Place the marbles in order from largest to smallest.Largest What's the type of the text? Justify your answer DNA are implied on protein called