Chemistry High School

What is this molecule an
example of?
A. an atom
B. a mixture
C. an element
D. a compound
PLEASE HELP ASAP

What Is This Molecule Anexample Of?A. An AtomB. A MixtureC. An ElementD. A Compound PLEASE HELP ASAP

Answers

Answer 1

Answer:

D. Compounds

Explanation:

Because it's says that have 3 components

Related Questions

which of the following is unbalanced

A. SnO2 + H2 → Sn + 2 H2O
B. 2Na + 2H2O → 2NaOH + H2
C. N2O5 + H2O → HNO3
D. 2Fe + 3Cl2 → 2FeCl3

Answers

Answer:

The unbalanced chemical equation is;

C. N₂O₅ + H₂O → HNO₃

Explanation:

In balancing a chemical reaction equation, only the coefficients of the terms of the reactants and/or the products are adjusted (and not the subscripts to the atoms in the compounds) to ensure that the total number of each element is the same on either side of the arrow for the chemical reaction

A coefficient term is the number multiplier of the compounds and elements in a chemical reaction

Therefore, the balanced chemical equation is obtained by changing the coefficient of the product from the implied '1' to a '2' as follows;

N₂O₅ + H₂O → 2HNO₃

Which organ system carries materials to human tissues?

Answers

Answer:

Cardiovascular they carry according to me

The mole fraction of NaCl in an
aqueous solution is 0.132. How
many moles of NaCl are present in
1 mole of this solution?

Answers

Answer: .132

Explanation:

If we add 150mL of ammonia to 150mL of water, what is the concentration by volume?

Answers

Answer:

buffer solution

Explanation:

There are three bulbs powered by a battery. What will happen if the middle light burns out.

Answers

Answer:

nuclear war ;P

Explanation:

a compound contain 8.57g of carbon and 1.43g of hydrogen. The relative formula mass is 70 calculate the empirical formula of the compound and the molecular formula of the compound​

Answers

Answer:

Empirical formula: CH2

Molecular formula: C5H10

Look at the leaves on these plants which pair of sentences about the leaves is true


HELP

Answers

The answer is the third one down

In what way have humans selectively bred chickens?

Answers

Depending on color/ mass weight/ egg production

What reactants go into the process?
I

Answers

Answer:

The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas

Explanation:

Answer:

triangle

Explanation:

dont take me serious

You bought a balloon for a birthday party in January. It was so cold outside that you ran into the house and forgot the balloon in the car. You go out to the car a few hours later and get the balloon. You noticed that the balloon was a little deflated. Once you brought the balloon into the house, after about 20 minutes, the balloon was back to normal.

Part A: Explain what happened to cause the balloon to deflate and then inflate. Be sure to use unit vocabulary and specific details to support your answer.

Part B: Using the information you provided in Part A, explain what would happen if you left an inflated balloon in the car on a very hot summer day.

Answers

Answer:

Part A: When air is left in specific environments, it can either expand or contract depending in the given environment, so, if left in a cold car for a few hours, the air inside said balloon will contract.

Part B: If left in said car on a very hot summer day, the air in said balloon will expand, and if left in said car long enough, said balloon will explode due to the air inside expanding

Hope this helped!

how does lanthanide contraction influence the density of period 6 transition element​

Answers

Answer:

For example, the atomic radius of the metal zirconium, Zr, (a period-5 transition element) is 155 pm (empirical value) and that of hafnium, Hf, (the corresponding period-6 element) is 159 pm. ... The increase in mass and the unchanged radii lead to a steep increase in density from 6.51 to 13.35 g/cm3.

Explanation:

Why is it important to have the correct atomic number when identifying an atom/element?

Answers

Answer:

The number of protons in an atom is called its atomic number. This number is very important because it is unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms.

Explanation:

Hope this helped!

If 2.2 moles of calcium oxide are decomposed, how many moles of oxygen are produced?
2CaO --> 2Ca + O2

Answers

Answer: Since the reaction is 2Ca(NO3)2 = 2CaO + 4NO2 + O2

1) - given the stoichiometric coefficients, we know that 2 moles of Ca(NO3)2 will produce 4 moles of NO2, hence, 1 mole will produce 2 moles of NO2

2) - 328 g produces 22.4 L, since One mole of any gas at S.T.P. occupies the same volume which is 22.4 L.

Hence, 65.6 g produces (65.6*22.4)/328 = 4.48 L

3) - 328 g produces 112 g CaO. Therefore, 65.6 g produces = (65.6*112)/328 = 22.4 g CaO.

4) - Given the stoichiometric coefficients, we know 5 moles of gaseous products are already being produces ( 4+1) by 2 moles of reactant.

5) - 44.8 L at STP = 2 moles of NO2, since One mole of any gas at S.T.P. occupies the same volume which is 22.4 L.

Hence, to produce 2 moles of NO2, we need 1 mole of reactant = 164 g

Hope this helps :)

Explanation:

5. How many grams of Al2O3 are dissolved in 852 g of water in a 0.329 m solution of Al2O3?

Answers

Answer:

Al2o3 grams to moles

Explanation:

You can view more details on each measurement unit: molecular weight of Al2O3 or grams This compound is also known as Aluminium Oxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Al2O3, or 101.961276 grams.

AL2o3 grams to moles

What is the solution to the following equation? Your answer
should use the correct number of significant figures.
(1.239 + 2.36 + 6.7800) -3.25 =

Answers

Answer:

7.129

Explanation:

1.239+2.36.6.7800

Someone please answer this in like 40 minutes
Before it’s due. Explain the answer too

Answers

Answer:

kkkwkisa

Explanation:

wulaoaiq8qiIq8qiaik

Wind patterns are impacted by which of the following?

Choose ALL that apply

lesson 2.09

Question 7 options:

As a result, air near the equator heats up and rises because it is less dense.


The sun's energy heats air at the equator more than it does at the poles.


Radiant energy from the sun strikes Earth unevenly.


As it rises, it cools and begins to flow toward the poles. As this air leaves the equator, cooler and heavier air from the poles flows along the surface to take its place.

Answers

i’m pretty sure it all of them!

ALL options above described can impact the wind patterns.

Wind patterns are completely dependent on the amount of heat present in the environment, which is influenced by sun rays.

The sun rays are perpendicular near the Equator, thereby increasing the temperature of the air and changing win patterns.

As air rises, it cools and travels to higher latitudes (i.e. toward the poles).

In conclusion, ALL options above described can impact the wind patterns.

Learn more in:

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Answer the following questions.
Q1. How are solids, liquids and gases similar and different from each other?
________________________________________________________________________
________________________________________________________________________
9
Q2. Differentiate mass from volume.
________________________________________________________________________
________________________________________________________________________

Answers

Answer:

Q1: Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

Q2: Mass is how much stuff something is made of. Volume is how much space an object takes up.

I NEED THIS ASAP!! Select all that apply.

Air pollution particles may be removed by _____.

oceans
natural cycles
soil
rain
snow
wind

Answers

Answer:

Natural Cycles

Explanation:

Most sulfur oxides are produced by burning: coal

Air pollution particles may be removed by _____. rain snow wind natural cycles

The three primary sources of air pollution are _____. factories cars electric power plants

The two basic types of air pollutants are _____. gases particulates

May I get brainliest please?

I'm pretty sure it's natural cycles, rain, snow, and wind.
If I'm wrong sorry.

1.25 x 1025 molecules of glucose (C H202) is
how many moles of glucose?

Answers

Answer:

1281.25 Moles of glucose

Explanation:

Multiply 1.25x1025= 1281.25

10.Give an example of an adaptation in birds, where shape of beak is related to the eating habits of that bird.

Answers

Answer:

It isn't only for the eating habits but also for building nests, hunting small insects, birds, other creatures including defence. Birds have a narrow small throat so the beak helps ripping off small peices of a big animal l(small bird) and for insects they crush and swallow it, they se their beak for feeding their children by grinding food in their beak and transferring it to the youngsters mouth

How many total atoms are in 12 NaBr?​

Answers

the total atoms are equal to 1 atom.

From the balanced reaction:
B2H6 + 3O2 ⇒ 2HBO2 + 2H2O

How many moles of O2 will be needed to burn 36.1 g of B2H6?

Answers

Answer:

The mass of O₂ that will be needed to burn 36.1 g B₂H₆ is 125.29 g.

1. Substances in which the bonding is best described as ionic include which of the following?
I. CCL
II. CO :
III. CaCl
(A) I only
(B) III only
(C) I and II only
(D)II and III only
(E) I, II, and III

Answers

Answer:

D.ll and lll only

Explanation:

that is the best ionic also this i s described the oinic

Complete the calculation to find the mass of 1 mole of water (H2O). Use the atomic weights given in the periodic table. Select the correct option from each drop-down menu.

Answers

Answer:

2x( 1.008 g/mol) +1 x (15.999 g/mol) = 18.015 g/mol

Explanation:

The mass of 1 mole of water (H2O) is 2x( 1.008 g/mol) +1 x (15.999 g/mol) = 18.015 g/mol

What is the mole of one mole of water?

One mole of water is about 18 milliliters.

This is the volume of a few drops of water, 3.65 teaspoons, 1.2 tablespoons, or 0.018 liters. It's not a large volume, yet it contains 6.022 x 1023 water molecules! You can use the same steps to find the mass and volume of any other substance.

How many grams are there in 1 mole of water?

18.02 g

So, one mole of water (6.022 x 10 23 molecules) has a mass of 18.02 g. One mol of NaCl (6.02 x1023 formulas) has a mass of 58.44 g.

Learn more about the mass of 1 mole of water (H2O) at

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Select the correct answer.

Which two particles can form an ionic bond with each other?

A.
a negative oxygen ion and a negative chlorine ion
B.
a positive sodium ion and a positive magnesium ion
C.
a positive calcium ion and a negative oxygen ion
D.
a neutral fluorine atom and a negative sulfur ion

Answers

Answer:

C. a positive calcium ion and a negative oxygen ion

Explanation:

Ionic bonds are generally positive and negative because one is gaining electrons while the other is losing.

The term chemical bond generally refers to the attractive force that holds the constituent atoms or ions of a molecular species together. Here an ionic bond is formed between a positive calcium ion and a negative oxygen ion. The correct option is C.

What is an ionic compound?

An ionic compound is formed by the transfer of one or more electrons between the atoms. An ionic bond or electrovalent bond refers to the strong electrostatic forces of attraction that hold together oppositely charged ions.

The number of electrons lost or gained by an atom of an element so as to acquire a stable octet configuration in its outermost shell is called the electrovalency of the element.

Here 'Ca' has 20 valence electrons and 'O' has 6 valence electrons. So in order to attain the stable octet configuration of 'Ar', 'Ca' loses two electrons whereas 'O' accepts two electrons to attain stable octet configuration of 'Ne'.

Thus the correct option is C.

To know more about ionic compounds, visit;

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Ahh, help me I don’t know what to pick

Answers

Answer:

for what? is there supposed to be a picture?

Explanation:

??

True or false. Microwaves heat food evenly.

Answers

False. It depends on how much time you put into it like 2 minutes or 30 seconds

Answer:

False

Explanation:

When you continuously feed waves into space, there are going to be some cold spots, or "dead spots."

what is the importance of knowing how to identify structural formula of a compound?
​

Answers

Answer:

Structural formulas are helpful because they explain the properties and structure of the compound which empirical and molecular formulas cannot always represent.

Explanation:

HOPE ITS HELPFUL FOR U

Human reproduction involves eggs, ovaries, sperm, and testes.
Which of these are gametes?
A eggs and sperm
B eggs and ovaries
C ovaries and testes
D sperm and testes

Answers

Answer:

A. Eggs and sperm

Explanation:

Genres are an organisms reproductive cells. Also referred to as sex cells. Females they are ova or egg cells, and males they are sperm.

Other Questions
What is needed in order to give the DNA polymerase a place to start copying DNA? How long is it? What puts it on? how many inches are in a feet Introduction: In the greater Seattle-Tacoma area, an arms race continues between hospitals to gather the most modern technology available to use on their patients - currently this arms race's primary device of choice-robotic surgical systems. Why robotic surgical systems? These systems in theory allow surgeons to be more precise in performing complex surgical procedures on patients. With greater precision comes a greater chance of successfully healing the patient as well as reducing the patient's possibility for complications and recovery time. In addition to these benefits, hospitals through the use of superior technology can serve more patients and potentially reap greater benefits from insurance companies and patients for these advanced medical services The price of this superior care though comes at a cost to the patient increased charges) as well as purchase costs to the hospital. One of the most popular robotic systems is called da Vinci and is manufactured and sold by Intuitive Surgical (http://www.intuitivesurgical.com/). The da Vinci was FDA approved in July 2000 and can currently perform urologic, gynecologic, colorectal, head and neck, cardiothoracic, and other general surgery procedures. As important as the device is the surgeon that is trained in the use of the system. The more repetitions on the robotic system, the more skillful the surgeon becomes Depending on the options that a hospital chooses to purchase, the cost of a da Vinci system can range between 1 million and 3 million dollars with the associated sales taxes. As with all surgical instruments, there are also disposable items needed during a surgery associated with equipment-specifically the da Vinci which must also be purchased. These items range from $1,000 to $3,000. Finally, as with many pieces of sophisticated electronic technology. It must be $200.000 a year. In addition to these specific costs on that this equipment occupies as well as utilize all the must be m ined The maintenance costs can be upwards to addition to these specific cost hospitals must continue to maintain the surgical men occupies as well as utilize all other supplies that would be used in any utca The Deal: A local hospital in the Pupet Sound area faced a dilemma in the medical arms race. Surrounding hospitals were purchasing and willing the da Vinci robot system. Management began to worry about the erosion of patients that would seek out this modern technology over more traditional surgical procedures. To this end a strategic decision was made to acquire the da Vinci robotic surgical system. The following data was presented to an analyst in the Finance Department for review Table Lease Term: 36 Months Lease Payment: $68,742.10 Purchase Price: $1.900000.00 Quite often, analysts are provided leasing information by the leasing company. Hospitals may choose to purchase equipment outright or acquire equipment using a lease. Leases are generally considered operating or capital leases under current accounting rules. Hospitals may purchase equipment outright if they have sufficient capital money that can be used to purchase equipment of significant amount-usually greater than $5,000). Otherwise, they may decide that if the interest rate of payments being charged is lower than their internal cost of capital (debt financing, equity financing, etc.), they may utilize the lease directly from the equipment seller. Given the information provided in Table : 1. What is the annual rate of interest beine charped to the hospital? The total interest paid over the entire term of the lease? 2. Given this rate of interest. give some reasons on why or why not the hospital should accept this lease contract. Is this a good deal for the lessee? 3. Why would a hospital care whether it was a collease or an operating lease? When would one be an advantage over the other? please help me i have asked my all my friends and they dont know Find the slope. (10,-6) and (13,-7) Find the median of 19, 29, 36, 15, and 20. Show all the steps that you took to find your answer. You project revenue to start at $5,000 for the first month and grow by $200 each month thereafter. 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