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
ArbitrLikvidat [17]
3 years ago
9

Which of the following is an example of a phase change from liquid to gas?

Chemistry
2 answers:
sesenic [268]3 years ago
8 0
C.Water evaporating is the correct answer
You can go for it
netineya [11]3 years ago
6 0
Correct answer to this question is c. water evaporating
You might be interested in
25. How many ml of a .0023M strontium hydroxide solution are needed to completely react 15.0 mL of 0.012M hydrochloric acid?
Mariana [72]

Answer: There are 78.26 mL of a 0.0023M strontium hydroxide solution are needed to completely react 15.0 mL of 0.012M hydrochloric acid.

Explanation:

Given: M_{1} = 0.0023 M,          V_{1} = ?

V_{2} = 15.0 mL,           M_{2} = 0.012 M

Formula used to calculate volume of strontium hydroxide solution is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute the values into above formula as follows.

M_{1}V_{1} = M_{2}V_{2}\\0.0023 M \times V_{1} = 0.012 M \times 15.0 mL\\V_{1} = 78.26 mL

Thus, we can conclude that there are 78.26 mL of a 0.0023M strontium hydroxide solution are needed to completely react 15.0 mL of 0.012M hydrochloric acid.

8 0
3 years ago
If the compound potassium chloride is written in words, how do you know to write the formula with one potassium and one chloride
NNADVOKAT [17]

Because there is only one stable ionic compound made up of potassium and chlorine, and that is KCl. So calling is "mono chloride" or similar would be redundant assuming you understand basic chemistry (i.e. knowing oxidation numbers of K is +1 and Cl is -1). When compounds can exist in multiple forms in nature like CO and CO2 you will preferably indicate it through the nomenclature, calling one a monoxide and the other a dioxide.

6 0
3 years ago
How many moles of NO gas are formed from 2.25 moles of nitrogen?
VikaD [51]

Hey there!

A mole is measured in atoms, molecules, particles. It's kind of a loose sort of measurement, just unit of the substance.

Since there is a ratio of 1 to 1 nitrogen to oxygen, there will be the same amount of molecules as atoms of nitrogen.

2.25 moles of NO gas are formed from 2.25 moles of nitrogen.

Hope this helps!

7 0
2 years ago
Which one of the following classes of organic compound does not contain the carbonyl (C=O) group?A) aldehydesB) carboxylic acids
vredina [299]

Answer: alcohols

Explanation:

The carbonyl group refers to C=O. It is contained in aldehyde, Ketones, carboxylic acids , esters, amides and acyl chlorides. They are not found in alcohols. The alchols are generally ROH. They do not contain any carbon-oxygen unsaturated bond in their structure hence the answer.

3 0
2 years ago
Which substance is not a compound
Roman55 [17]
Your going to have to take a picture or make a list of the substances so i know which are and are not a compound
3 0
3 years ago
Read 2 more answers
Other questions:
  • I need help can someone please do so?
    15·1 answer
  • The barcoding process starts with who
    15·1 answer
  • Describe the kinetic energy/ movement of the particles in plasma.
    10·2 answers
  • Which statements about scientific explanations are true? I. Scientific explanations must prove that a hypothesis is true. II. Sc
    14·2 answers
  • This decomposition is first order with respect to phosphine, and has a half‑life of 35.0 s at 953 K. Calculate the partial press
    5·1 answer
  • What can be said about an endothermic reaction with a negative entropy change?
    15·1 answer
  • assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate
    11·1 answer
  • Compare element factories to real factories
    6·1 answer
  • Aldo cannot get the answer to a chemistry problem, even after sitting at his desk for an hour. He gets up and goes for a walk. S
    14·1 answer
  • Which of these is NOT a unit of pressure<br><br> psi<br> atm<br> mm<br> Torr
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!