Chemistry High School

Count the atoms of each element.
5(NH) P
5
10
15
20
30
40
50
60
70
Nitrogen
o
o
O
O
O
O
o
Hydrogen
O
O
O
O
Phosphorus
O
O
O
O
O

Count The Atoms Of Each Element.5(NH) P51015203040506070NitrogenooOOOOoHydrogenOOOOPhosphorusOOOOO

Answers

Answer 1

Answer:

Nitrogen = 15

Hydrogen = 60

Phosphorus = 5

Answer 2

Answer: uh

Explanation:

Related Questions

which of the following CANNOT be classified as a substance? A. table salt B. air C. nitrogen D. gold

Answers

Answer:

C. Nitrogen

Explanation:

All of the other options are mixtures making them substances, but nitrogen is an element. (while gold is an element, there are often times that gold is mixed with other elements, creating a substance)

i give brainliest help pls

Answers

The answer is a compound.

Hope this helps! :)

Fill in the blank.the amount which an object accelerates depends on the mass of the object on the size of the ____ acting upon it
I need help I’m struggling

Answers

Answer: Force

Explanation:

Answer:

force

Explanation:

PLS HELP:)Which situation will cause a stationary object to start moving?
A. A net force greater than 0
B. Balanced forces
C. A net force equal to 0
D. Two forces that cancel each other out

Answers

A. A net force greater than 0

Someone help me with this plz due in 10 minutes ILl give brainly!!!

Answers

Answer:

which one do u want help with?

Explanation:

Plz help! The best answer will be marked as brainliest!

Make a funny sentence of alloys for Magnesium

Here is an example for Mercury, it HAS to for Magnesium

“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”

Answers

Answer:I love to travel however I do erode aluminum so we won't be taking off on undertakings in planes at any point in the near future

Explanation:

Describe the motion of molecules in each of the three states of matter.

Answers

Answer:

EASSSSSYYY give me a harder question smh

if you want you can give me Brainliest answer lol

Explanation:

A solid’s particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely.

A liquid is a fluid that conforms to the shape of its container but that retains a nearly constant volume independent of pressure. The volume is definite (does not change) if the temperature and pressure are constant.

Gas molecules have either very weak bonds or no bonds at all, so they can move freely and quickly. Because of this, not only will a gas conform to the shape of its container, it will also expand to completely fill the container.

In the compound nickel(II) sulfide, there is always 58.7 g of nickel for every 32.1 g of sulfur. What is the simplified ratio of
nickel to sulfur?

Answers

answer: 1.83 to 1

or at least that’s what i got

if you were conducting an experiment to see whether eating candy makes gerbils fat, what variable might you change?
A:The number of gerbils you feed incorrect answer
B:The amount of candy the gerbils eat incorrect answer
C:The amount of water the gerbils drink incorrect answer
D:The body mass of the gerbils incorrect answer

Answers

Answer:

B

Explanation:

the less candy will be the smallest gerbil and the most candy will be the fatest

Answer:

A) The number of gerbils you feed

Explanation:

If you wanted to test whether eating candy made gerbils fat you would need to fluctuate the amount of candy each group receives to observe whether there was any differnce in weight

Which of the following can be inferred from the diagram above that shows the dependence of potential Energy on the Internuclear distance between two atoms?

A - The atoms form a bond with a bond length of 25 pm
B - The atoms form a bond with a bond length of 75 pm
с - The net force between the atoms is attractive at 25 pm
D - The net force between the atoms is attractive at 75 pm

Answers

Answer:

B - The atoms form a bond with a bond length of 75 pm

From the potential energy diagram of shown, we can infer that the atoms form a bond with a bond length of 75 pm.

When atoms are far away from each other, there exists no interaction whatsoever between the atoms.

However, as the atoms draw closer to each other, the potential energy diagram begins to shift towards an energy minima as we can see from the potential energy diagram.

As the system continues to tend towards this minima, the distance between the atoms decreases. The distance at which the two atoms have the lowest energy is called the bond length.

For this system, such a bond length occurs at 75pm as we can see from the diagram.

Learn more: https://brainly.com/question/24275269

The sphere was dropped into water in a graduated cylinder as shown below

Answers

Answer:65 ML

Explanation:

first proposed that Earth and the other planets orbit the sun.
OA.) Hubble
OB.) Galileo
OC.) Copernicus
OD.) Kepler
ANSWER QUICK PLEASEE

Answers

The answer is C have a great day:)
Answer: It’s c

Explanation:
I just now took the test

P2O5 is a covalent compound used to purify sugar. How many atoms of phosphorus does this compound have? How many atoms of oxygen does this compound have?
Lol please help :')

Answers

Answer:Phosphorus: 2

Oxygen:5

Explanation:

Just did it

Answer:

Phosphorus: 2

Oxygen:5

Explanation:

How many grams are there in 1.18 X 1026 atoms of iridium?

Answers

You want to divide by avagadros number (6.22 x 10^23). This will cancel the atoms unit and give moles, moles of Iridium. Now you want to calculate the atomic mass of Iridium which is in units of grams per mole. Multiply these two numbers and the moles will cancel giving you grams.

Setting up a dimension analysis type of thing helps tremendously. See what you have to cancel in order to get what you want. We canceled the atoms, then we canceled the moles, and then we got grams.

Which is not a chemical element needed to build sugars?

Answers

Answer:

Nitrogen

Explanation:

Help PLEASE HELP PLEASE

Answers

Answer:

b. k+

Explanation:

what is the scientific method?

A) the process of proving a theory
B) a way of analyzing data
C) a method of testing an idea
D) the steps required to form a hypothesis

Answers

Answer:

C- a method of testing an idea

PLEASE HELP ME FAST THANKYOU! :)
What is a substance said to be if it evaporates easily?


A.crystallized


B.condensing


C.changing pigmentation


D.volatile

Answers

Volatile: easily evaporated substance

Write the chemical formula for Calcium Dichromate

Ca Cr2O7^2 -
2 2
2 2
1 1
=CaCr2O7^2 -

Is this right? ​Or does the second part have a bracket

Answers

Answer:

Its right

Explanation:

The chemical formula of calcium dichromate is CaCr207

If 0.243 g of magnesium is reacted with hydrochloric acid, the amount of acid required would be:

Answers

Answer

0.496g

Explanation:

All you have to do in this problem is multiply .243 g by 2.04, which is the universal shortcut for these acid problems.

What is the buoyancy force on a 15 g object which displaces 60 mL of water? (Remember to change mL of water to grams and grams to kg)

25 N
0.59 N
900 N
0.25 N

Answers

Answer:

0.25

Explanation:

Answer:

.59

Explanation:

how many significant figures in 1. 19.99 2. 140486 3. 0.0609 3. 5.08 ?

Answers

1. 4 significant numbers

2. 6 significant numbers

3. 3 significant numbers

4. 3 significant numbers

Further Explanation  

Significant numbers are numbers obtained from the measurement results of exact numbers and the last number estimated  

1. 19.99

all non-zero numbers are significant numbers , so there are 4 significant numbers

2. 140486

a zero which is located between two non-zero numbers including a significant number , so there are 6 significant numbers

3. 0.0609

a zero in front of a decimal point is not a significant number, so there are 3 significant numbers (6,0 and 9)

4. 5.08

Any zeros between two non-zero numbers are significant, so there are 3 significant numbers(5,0 and 8)

If Beryllium has a mass number of 7 and atomic number of 4, how many protons does it have?

Answers

Answer:

4

Explanation:

Answer:

4

Explanation:

So the atomic number is still the proton number and it is always smaller than the atomic mass so the proton number is 4.

HOPE IT HELPED

Pleaseeee help meeeee

Answers

Answer:You have it right the answer is c!

Explanation:

Answer:

c ........................!

Help me. I need help on these questions and i don’t understand

Answers

I would love to help but I don’t know sorry

[
An atom, which is an isotope of an element, is characterized by -
O having more electrons in its nucleus.
O having more neutrons in its nucleus.
having fewer protons in its nucleus.
having more protons in its nucleus.

Answers

Answer:

gime fre points

Explanation:

fre points for me!

How are hypotheses different from theories?

Answers

Answer:

Explanation:

This is the Difference Between a Hypothesis and a Theory. In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.

Did you title your lab report?
 Did you state the purpose of the investigation?
 Did you include a brief overview of the investigation?
Materials and Procedure
 Did you make a list of materials? Did you include quantities and SI units?
 Did you present the steps of the procedure as a numbered list?
 Did you note any changes to the original procedure?

Answers

I believe this is just a checklist a follow up of a lab you did.

Do all systems have Inputs and Outputs? I’m sorry I’m really dumb

Answers

Yes they always do. And don’t worry. I’m dumb too
Yeah they do, it might help if you put systems on a table so you’ll have a visual on the inputs and outputs

Write two uses of sublimation process?​

Answers

Answer:

Explanation:

Practical Applications of Sublimation

Sublimation and erosion cause ablation, a process that wears down glaciers. Sublimation of iodine may be used to reveal latent fingerprints on paper. Sublimation is used to purify compounds. ... Because dry ice sublimates so readily, the compound is used to produce fog effects.

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