1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rudik [331]
3 years ago
9

Number of N atoms in 0.430 mol NH3 Express your answer in atoms to three significant figures.

Chemistry
1 answer:
HACTEHA [7]3 years ago
5 0

Answer:

N/Na=n×4

N=0.430×4×6.02×10^23

N=10.3×10^23

N=1.03×10^24atoms

You might be interested in
Violet light has a wavelength of 6. 80E-7 m. What is the frequency?
Sever21 [200]

Answer:

violet has a frequency of 668-789 THz :)

Explanation:

5 0
2 years ago
By what quantity must the heat capacity be divided to obtain the specific heat of that material
masha68 [24]
<span>Heat capacity of an object, is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of the object by 1 degree celsius. Unit of heat capacity is J/°C 

Larger object will surely need larger amount of thermal energy to raise its temperature. If you compare 1 litre of water with 0.5 litre of water, the 1L water will have two times the heat capacity. 

It will be more useful to compare specific heat capacity, because then it is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of 1 unit mass of the object by 1 degree celsius. You can then compare between 1 unit mass of water and 1 unit mass of iron. 
Water has higher specific heat capacity than iron, meaning that you need more energy to heat up 1kg of water, then to heat up 1kg of iron. 

The unit will then be J/(kg °C) or J/(g °C).
</span>
6 0
3 years ago
In this lab, you will do experiments to identify types of changes. Using the question format you learned (shown above), write an
Vlad1618 [11]

Answer:

How can you distinguish a physical change from a chemical change?

Explanation:

4 0
3 years ago
If Earth's mass doubled<br> without changing its size,<br> your weight would
IrinaVladis [17]

Answer:

Answer: It will double our mass too .

Explanation: Because the gravitational force will be more and it will attract us more towards its surface which will result to more weight gain .

Explanation:

mark as brainiest

5 0
2 years ago
The chemical equations in model 1 contain the phase notations (s), (l), (g), and (aq). match each symbol with its meaning.
Sever21 [200]

Reaction equations contains symbols which show the physical state of the reactants and products.

<h3>What is a chemical equation:</h3>

A chemical equation is an expression that shows the interaction of reactants to yield products. Usually, symbols such as (s), (l), (g), and (aq) are used to show the state of the reactants and products.

The following are the respective meanings of these symbols;

  • (s) - solid
  • (l) - Liquid
  • (g) - gas
  • (aq) - dissolved in water

Learn more about reaction equations: brainly.com/question/1170557

8 0
2 years ago
Other questions:
  • A mixture of n2(g) and h2(g) reacts in a closed container to form ammonia, nh3(g). the reaction ceases before either reactant ha
    11·2 answers
  • If you know the number of protons what else do you know the number of?
    14·2 answers
  • You hold a gram of copper in one hand and a gram of aluminum in the other. Each metal was originally at 0° C. (Both metals are i
    12·1 answer
  • Jaoquin has 24 dollars he used 5/8 of his money to buy a pair of jeans how much money did joaquin spend on jeans?
    13·1 answer
  • Which can change from one state of matter to another at the temperatures and pressures experienced at Earth’s surface?
    10·1 answer
  • What is the periodicity/trends of our modern periodic table
    7·1 answer
  • Pls answer this question and have a great day:)
    9·1 answer
  • How many moles of gas would you have if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature
    6·1 answer
  • 2. The heat from an acetylene torch is produced by burning acetylene (C2H2) in oxygen.
    5·1 answer
  • There are 1.2 x 1024 formula units
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!