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
Alborosie
3 years ago
5

How do chemists count the number of representative particles in a substance?

Chemistry
1 answer:
natali 33 [55]3 years ago
5 0
The mole allows chemists to count the number of representative particles
You might be interested in
In a fair test, you should change only one variable so that you can see the effects of the variable you changed. Suppose you wer
jeka94

Answer:

<em>a) The variable that we will change will be the different liquids.</em>

<em>b) The variable which will be kept same will be the ramp angle, the time for measuring in each experiment and the heat. </em>

Explanation:

In a scientific experiment, an independent variable is a variable which is changed by the researcher so that its effect on the dependent variable can be studied.

A dependent variable is a variable which is under study and might be influenced by changes in the independent variable.

It is best to study the effect of a single independent variable at a time so that we can easily infer the results.

<u><em>In the scenario discussed in the question, we would change the different liquids so that the time taken by each liquid to flow down the ramp can be studied.</em></u>

<u><em>We will keep the ramp angle, the time (of each experiment) and heat for each of the experiments the same so that a just conclusion can be drawn.</em></u>

6 0
4 years ago
In a compound the elements are _____ together, whereas in a mixture the substances are blended together.
Salsk061 [2.6K]

Answer:

bonded

Explanation:

Compounds are two elements bonded together.

A mixture is multiple substances blended together.  The substances aren't bonded together and can easily be extracted  from each other.

4 0
3 years ago
HELP
Yuliya22 [10]
Sodium chloride

aluminum oxide

potassium ???

copper bromide

iron (II) oxide
6 0
4 years ago
what are the mole ratios of hydrazine (n2h4) to hydrogen peroxide (h2o2) and hydrazine to water? 1:2 and 1:4 1:3 and 1:4 1:2 and
Shalnov [3]
To determine the mole ratios of the substances, we need to know the balanced chemical reaction of the system. The reaction between hydrazine and hydrogen peroxide yields to nitrogen and water. The balanced chemical reaction is:

N2H4 + 2H2O2 --> N2 + 4H2O

Therefore, the mole ratio between hydrazine and hydrogen peroxide is 1:2 and the mole ratio between hydrazine and water is 1:4.
3 0
3 years ago
Describe gas production
kaheart [24]

Answer:

it natural gas or fossil fuels

5 0
3 years ago
Other questions:
  • We change a gas to liquid by ___ the temperature and ___the pressure
    15·1 answer
  • If electrons were used in the two-slit experiment instead of light, what change would need to be made to the slit spacing in ord
    15·1 answer
  • A total of 0.829 L of hydrogen gas is collected over water at 33.0°C. The total pressure is 794 torr.
    14·1 answer
  • The graph above plots gravitational force versus distance for two asteroids of equal mass (10 billion kg). When the distance bet
    8·1 answer
  • Order the following in terms of decreasing atomic radius: <br><br> Ba, Cs, Hf, Bi, Ta
    5·1 answer
  • Which of the following is a potential disadvantage of using wind energy? (2 answers)
    5·1 answer
  • Heating water makes most solids in it
    6·1 answer
  • When does drug use become a problem?
    9·1 answer
  • What the answer giving brainliest:) HELP
    10·2 answers
  • What is the molarity of the following solution?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!