Chemistry High School

Which have a mass of 0 amu ?

I give Brainliest!!!!

Which Have A Mass Of 0 Amu ?I Give Brainliest!!!!

Answers

Answer 1

Answer:

Electrons

Explanation:

Protons and Neutrons have an amu of 1

Answer 2

Answer:

c. Electrons

Explanation:

Electrons are found outside the nucleus and are the lightest.

Related Questions

What type of energy transformation happens during photosynthesis?
(select the BEST answer choice
thermal --> radiant
chemical --> radiant
chemical --> thermal
radiant --> chemical

Answers

Answer:

radiant - chemical is the best answer

Predict the approximate molecular geometry of a formaldehyde molecule:

Answers

Answer:

trigonal planar geometry

Explanation:

The molecule, formaldehyde , has three regions of electron density around the molecule. The carbon atom is the central atom in the molecule of formaldehyde.

Recall that each bond around the central carbon atom in formaldehyde- both single and double are counted as a single region of electron density. Molecules having three regions of electron density around the central atom have a trigonal planar geometry.

____Na3PO4+____CaCI2 --->____NaCI+ ____Ca(PO4)2

Answers

Answer:

3CaCi2 + 2Na3PO4 → Ca3(PO4)2 + 6NaCi

Explanation:

Which statement is best illustrated in the diagram above regarding how the Sun's energy affects the Earth's surface from June through September in the Northern Hemisphere? The season changes from autumn to winter, daylight hours decrease, and infrared radiation is the weakest during the June solstice. B The season changes from winter to spring, daylight hours increase, and infrared radiation is the weakest during the September equinox. C The season changes from summer to autumn, daylight hours decrease, and infrared radiation is the strongest during the June solstice. The season changes from spring to summer, daylight hours increase, and infrared radiation is the strongest during the September equinox.​

Answers

Answer:

I'm sorry but there is no diagram above.

What is the acceleration due to gravity at Earth's surface?​

Answers

Answer:

9.8 m/s2

Explanation:

That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.

Dababy without a doubt

Pascal’s Law states that when pressure is applied from an outside source to a contained fluid, the force is
a. transferred through the liquid in a single direction
b. transferred through the liquid in the opposite direction
c. transferred unequally through the liquid in all directions
d. transferred equally through the liquid in all directions

Answers

Answer:

a

Explanation:

Answer:

a.....................

When the equation Al2(SO4)3 + NaOH + Al(OH)3 + Na2SO4 is correctly balanced, what is the coefficient of Al(OH)3?

Answers

The balanced chemical formula should be Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4

Therefore the coefficient of Al(OH)3 is 2!

Hope that helps :)

How are plant and animal cells similar? How are they different? To answer these questions, make a list of the different organelles in each cell. Explain how each organelle is vital to the life and function of a plant or animal.

Answers

Answer:

A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.

The equation below represents the process that you observed. Balance the equation. What type of reaction?
6CO2 + 6H2O + light energy = 0C6H12O6 + 6O2 _______________________

Answers

Answer:

Explanation:

6CO2 + 6H2O = 0C6H12O6 + 6O2

First you note how much u got of everything in front of and behind the arrow

C   6                        C 6

O   6 + 12 = 18        O 6 + 12 = 18

H   12                       H 12

As you can see, the equation is already balanced.

This is the equation of photosynthesis, which is a chemical reaction

Describe the similarities and/or differences between heating and burning the magnesium metal. Did either heating or burning produce a chemical change?

Answers

Answer and Explanation:

Heating the magnesium metal is a physical change because after the process, the magnesium metal is still magnesium metal and no other substance is formed. When we heat the metal, we tranfer energy and the temperature is raised. It could include the melting of the metal, which is a change in the state of matter, but it is still a physical change because no chemical reactions occur.

Burning the magnesium metal is a chemical change because it involves the reaction with O₂ to form a different compound (a magnesium oxide).

What evolution was evident in Darwin's finches?
1. beak type
2. leg muscles
3. wing span
4. eyesight

Answers

4. eyesight

explanation:
i’m not 100% bc you didn’t give any info on darwin

Answer:

sorry I don't know the answer hope you understand

How do plants get their food molecules??

Answers

Plants make their own food by using a process called photosynthesis. The plants produce glucose from inorganic molecules- carbon dioxide and water - using light. I hope this helps!

Answer:

Photosynthesis

Explanation:

Plants get energy/food molecules from a process called Photosynthesis

     Steps Of Photosynth's -

 The Reactants collect in the chloroplast. ( Carbon Dioxide, Water, Energy )       Light Energy from the sun drives Chemical Reactions.The Reactants Include glucose and oxygen which is released into the air.                

 

                                                  Hope This Helps!

                                                                             -Aslina <3

How many atoms would you find in 3.60 g of Boron?

Answers

Answer:

1.8 * 10^24 atoms

Explanation:

n = M(B) / m = 10.8 / 3.60 = 3 mol

N = n * Na = 3 * 6*10^23 = 1.8 * 10^24 atoms

which of the following indicates the cathode rays has a large charge to mass ratio?

Answers

Answer:

Gggg

Explanation:

The indication of the cathode rays that has a large charge to mass ratio is there were deflected towards a positive electrode. The correct option is b.

What are cathode rays?

Cathode rays are the rays that move through the negatively charged electrode the cathode charge to the positively charged electrode which is the anode charge in a vacuum tube.

These rays travel through a pipe in a straight line with speed when there is voltage is applied. They are also called electron beams. There is a cathode ray tube, CRT, which is a vacuum tube on which cathode rays travel.

So, the correct option will be for the cathode rays would be deflected towards a positive charge anode.

Therefore, the correct option is b, there were deflected towards a positive electrode.

To learn more about cathode rays, refer to the link:

https://brainly.com/question/13665271

#SPJ2

The question is incomplete. Your most probably complete question is given below:

They were easily deflected

There were deflected towards a positive electrode

They were deflected towards a negative electrode

They caused a fluorescent screen to glow

How many atoms of Mg are present in 97.22 grams of Mg?

Answers

Answer:

2.439 x 10E24 atoms

Explanation:

from

N=n x NA where

N- number of atoms

n-number of moles and NA is the avogadro's number

ahh help, is it true or false?

Answers

I think it’s true, false, false

.........m.......................






i need ur help guys​

Answers

Answer:

Uses of Sodium chloride:

1.it is used as table salt in our diets

2. it is used as a food preservative

3. It is used as an industrial source of sodium and chlorine

Uses of Sodium hydroxide:

1. It is in the laboratory as an alkali in the neutralization of acids

2. It is used in the manufacture of soap

3. It is used in the refining of petroleum

Uses of Sodium carbonate:

1. It is used in the manufacture of detergents and glass

2. It is used to soften hard water

3. it is used to standardize acids in the laboratory

Uses of Sodium sulphate

1. It is used in the manufacture of detergents and glass

2. It is used as a purgative

3. It is used to treat wood-pulp for paper making.

Uses of Potassium nitrate

1. It is used in making gunpowder

2. It is used as rocket propellant

3. It is used in making fertilizer

Uses of Potassium chlorate

1. It is used as an oxidizer

2. It is used in making explosives

3. it is used as a disinfectant

Uses of Potassium permanganate (vii)

1. It is used as an oxidizing agent

2. It is used as a disinfectant

3. It is used as an analytical reagent

Uses of Potassium chloride

1. It is used for the manufacture of fertilizer

2. It is used as an alternative salt to sodium chloride

3. It is used in medicine to treat low blood pressure

2. Potassium nitrate and potassium chloride are used in the manufacture of fertilizers.

Potassium nitrate is used in fertilizers because it provides two important plant nutrients, nitrogen and potassium to plants.

Potassium chloride (potash)  is used in fertilizers because it efficiently deliver the important plant nutrient, potassium, to plants.

Explanation:

Uses of Sodium chloride:

1. it is used as table salt in our diets

2. it is used as a food preservative

3. It is used as an industrial source of sodium and chlorine

Uses of Sodium hydroxide:

1. It is in the laboratory as an alkali in the neutralization of acids

2. It is used in the manufacture of soap

3. It is used in the refining of petroleum

Uses of Sodium carbonate:

1. It is used in the manufacture of detergents and glass

2. It is used to soften hard water

3. it is used to standardize acids in the laboratory

Uses of Sodium sulphate

1. It is used in the manufacture of detergents and glass

2. It is used as a purgative

3. It is used to treat wood-pulp for paper making.

Uses of Potassium nitrate

1. It is used in making gunpowder

2. It is used as rocket propellant

3. It is used in making fertilizer

Uses of Potassium chlorate

1. It is used as an oxidizer

2. It is used in making explosives

3. it is used as a disinfectant

Uses of Potassium permanganate (vii)

1. It is used as an oxidizing agent

2. It is used as a disinfectant

3. It is used as an analytical reagent

Uses of Potassium chloride

1. It is used for the manufacture of fertilizer

2. It is used as an alternative salt to sodium chloride

3. It is used in medicine to treat low blood pressure

2. Potassium nitrate and potassium chloride are used in the manufacture of fertilizers.

Potassium nitrate is used in fertilizers because it provides two important plant nutrients, nitrogen and potassium to plants.

Potassium chloride (potash)  is used in fertilizers because it efficiently deliver the important plant nutrient, potassium, to plants.

20.What do carbon and silicon have in common?

a.They belong to the same column (family), therefore they have the same number of valence electrons.
b.They belong to the same column (family), therefore they have the same number of total electrons.
c.They belong to the same column (family), therefore they have the same number of energy levels.
d.They belong to the same column (family), therefore they have the same number of protons.

Answers


a.They belong to the same column (family), therefore they have the same number of valence electrons.

Calculate the number of molecules in 64.5 grams of Nitrogen monoxide, NO

Answers

N=9.933

Explanation:

no of mole = m÷mr

then ,no of molecules=n×la

Are humans made of matter ?

Answers

Answer:

The are we made of matter?

30)
Cosmologists believe that the universe is expanding and that it has been expanding since the Big Bang. Astronomers
viewing distant stars see evidence of this expansion in which phenomenon?
A)
Red shift
B)
Blue shift
Gamma pulse
D)
Background radiation

Answers

Answer:

i did this so the next person can have brainliest

Explanation:

Describe the arrangement and motion of the particles in liquid stearic acid.
​

Answers

In liquids, particles are quite close together and move with random motion throughout the container. Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.

Answer:

Its density is exactly the same as that of pure stearic acid. Its boiling point is the same as that of pure stearic acid. Its melting point is different from pure stearic acid.

Write the symbol and charge for each individual ion:
11) Beryllium and and phosphorus
12) Cesium and sulfur
13) lithium and Phosphorus
14) Fluorine and rubidium
15) Francium and oxygen

Answers

look it up on the periodic table i attached below

im too lazy to type that all out im sorry but this is one of the easiest things you'll do in chemistry and if you tried you could actually finish all 5 of these in less than a minute instead of taking like 10 min to type 10 problems out separately and making 4 diff posts

A chemical ____ is a force of attraction between atoms or
ions that share or transfer valence electrons.

Answers

A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons.

If an atom has 24 p+ and 24e-, what is the atomic number of this element?

Answers

Answer:

24

Explanation:

Because atomic number is the number of protons.

What type of energy does photosynthesis turn energy from the sun into?

Answers

Explanation:

it turn into chemical energy

The answer would be ~chemical energy~ because plants convert solar energy into chemical energy

Hope this helps

Have a great day/night

Feel free to ask any questions

Consider the data [X] [Y] [Z] initial rate M M M M · s −1 Exp 1 0.30 0.20 0.35 0.210 Exp 2 0.60 0.10 0.70 0.420 Exp 3 0.60 0.20 0.70 0.420 Exp 4 0.60 0.40 0.35 0.105 What is a correct rate law for the reaction?

Answers

Answer:

Rate = k [X]⁻¹ [Z]²

Explanation:

[X] [Y] [Z] initial rate M M M M · s −1

Exp 1 0.30 0.20 0.35      0.210

Exp 2 0.60 0.10 0.70      0.420

Exp 3 0.60 0.20 0.70     0.420

Exp 4 0.60 0.40 0.35      0.105

In Experiment 2 and 3 where the concentrations of Y and Z were constant, doubling the concentration of Y had no effect on the rate of the reaction. This means, that the rate of the reaction is zero order with respect to Y.

In experiment 3 and 4, dividing the concentration of Z by 2, causes the rate of the reaction to decrease by 4. This means the rate of the reaction is second order with respect to Z.

In experiment 1 and 4, doubling the concentration of X, causes the rate of the reaction to decrease by half. This means that X has an order of -1 with respect to the rate of the reaction.

The rate expression is given as;

Rate = k [X]⁻¹[Y]⁰[Z]²

Rate = k [X]⁻¹ [Z]²

what is the name of this branched alkane?

Answers

Answer:

Explanation:

3-methyl pentane.

Answer:

the answer is methyl pentane

what waves are utilized to sterilize medical equipment?
a. Gamma
b. X-ray
c. Ultraviolet
d. Radio

Answers

Answer:

B-Gamma

Explanation:

The process of photosynthesis converts carbon atoms from carbon dioxide into....

OA. hydrogen
OB.oxygen
OC.sugars
OD.salts

Answers

Answer:

B. Oxygen

Explanation:

Answer:

C.

Explanation:

The process of photosynthesis converts those things into the sugar glucose, which it uses to sustain itself. A biproduct of this process is oxygen, but the carbon is used to make sugar. Hope this helps and brainliest is always appreciated!

Other Questions
whats 1+1?please do answer! On Friday, a local hamburger shop sold a combined total of 308 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Friday? And there is no other [center] of heat and light in the universe . . . certainly those who have chosen to worship men as godsas Jove, Saturn, Mars and the likehave [made a mistake], seeing that even if a man were as large as our earth, he would look no bigger than a little star which appears but as a speck in the universe; and seeing again that these men are mortal, and putrid and corrupt in their sepulchres.In Praise of the Sun,Leonardo da VinciRead the passage. With which statement would da Vinci most likely agree?Humans are not as magnificent as the sun.Humans are the center of the universe.Humans are the size of stars. (it's not this one ) Humans are fundamentally evil. The Harris Poll tracks the favorite sport of Americans who follow at least one sport. Results of the poll show that professional football is the favorite sport of 33% of Americans who folllow at least one sport, followed by baseball at 15%, mens college football at 10%, auto racing at 6%, mens professional basketball at 5%, and ice hockey at 5%, with other sports at 26%. Consider a survey in which 344 college undergraduates who follow at least one sport were asked to identify their favorite sport produced the following results:Professional FootballBaseballMen's college footballAuto racingMen's professional basketballIceHockeyOtherSports111394614620108Do college undergraduates students differ from the general public with regard to their favorite sports? Use x= .05. Which characteristics led people to elect George Washington president of the United States?Choose all correct answers.well-respectedhonestcourageouswealthy PLEASE HELP! WILL MARK BRAINLIEST IF U ANSWER CORRECTLY! IF WRONG U WONT GET IT What describes the conversion of ADP to ATP? A)an input of energy as both phosphate groups detachB)a release of energy as one phosphate group detachedC) a release of energy as a third phosphate group is attachedD) an input of energy to attach a third phosphate group What is the circumference of a circle with a diameter of 9 inches. Mr. Berger assigned the following system of equations to be solved for homework. 2 x minus 3 y = negative 12. 4 x + y = negative 10.Which is the x-coordinate of the correct solution?x = negative 3x = negative one-fifthx = StartFraction 9 Over 7 EndFractionx = 2 Why is natural selection not random if you help then I will thank u by sooo much I will give tons of points but the answer has to be right. What is the future of discussion of fourms? What is the theme of " The Weary Blues" by Langston Hughes? calculate 1.6 x 0.215 show your reasoning What is the atomic radius of mercury? Please help! If these two shapes are similar, what is the measure of missing length h? a coin is tossed several times and the ratio of the head to tails is 24:26. What Fraction of Tosses are heads? A medium pizza at Pizzaz Pizzacosts $12 plus 1.00 per topping,A medium pizza at Crustie'sPizza costs $10 plus $1.50 pertopping. How many toppingsdoes it take so that a mediumpizza costs the same at eachpizzeria? Define your variables,write a system of equations, andsolve f(n) = 2 (-3)^ncomplete the recursive formula of f(n).f(1) = ____f(n) = f(n - 1) ____ Using your linear function, find the distance traveled in 7 hours.