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
ella [17]
3 years ago
10

Hello guys i wanted to ask if anyone could check my answers please :) 10 points

Chemistry
2 answers:
arlik [135]3 years ago
7 0
The first answer is C, condensation is a physical process and the others are chemical.

The second answer is B, it doesn't change depending on location (the answer you chose)

The third answer is A.

The fourth answer is B. Temperature is an intensive property.

No explanations for the ones you got correct.
natta225 [31]3 years ago
3 0

Answer:

1) Water vapor condenses to form water droplets: a physical process.

2) It is proportional to its weight.

3) Gas

4) 115.2 °C since melting point is an intensive property

Explanation:

1) rusting of metals involves oxidation which is a chemical process

hydrogen and oxygen undergoes chemical reaction to give water

If a candy is dropped in water and releases gas then there must be some reaction going on,

thus out of the four changes, condensation of water is a physical process.

So correct answer is

Water vapor condenses to form water droplets: a physical process.

2) Mass is independent of location, It will be the same on earth or on moon,Its weight which changes with locations.

Thus the correct answer is mass is proportional to weight.

3) gas particles are neutral and they bounce off on another as they collide. the gas particles are in random motion due to high thermal energy and low intermolecular forces of attractions.

4) The intensive properties does not depend upon the mass or amount of a substance. Melting point is an intensive property and will be the same for any amount of a given substance.

You might be interested in
Explain how the mid-ocean ridge supports<br> the theory of sea floor spreading.<br> help plzzz:(
Sedaia [141]
The ridge of mid ocean b is the answer hope this helps
4 0
3 years ago
If a chemist has a stock solution of HBr that is 10.0 M and would like to make 450.0 mL of 3.0 M HBr, how would he do it?
asambeis [7]

This is a dilution that requires a certain volume from the stock solution to be diluted with distilled water to make a solution of HBr with a lesser concentration than the stock solution

Following dilution formula can be used

c1v1 = c2v2

Where c1 is concentration and v1 is the volume of the stock solution

c2 is concentration and v2 is volume of the diluted solution to be prepared

Substituting these values

10.0 M x v1 = 3.0 x 450.0 mL

v1 = 135.0 mL

A volume of 135.0 mL from HBr stock solution needs to be taken and diluted with distilled water upto 450.0 mL. The resulting solution will have a concentration of 3.0 M

4 0
3 years ago
Which of the following is a radioisotope used to date rock formations older than 50,000 years old?
Eddi Din [679]
<span>The radioisotope used to date rock formations 50 000 years ago is Uranium. This radioactive uranium isotope having a mass number of 235 and its symbol is U, its atomic number is 92, and the mass number is 238, comprising 0.715 percent of natural uranium. When bombarded with neutrons it undergoes fission with the release of energy.</span>
7 0
3 years ago
Which of the following are the physical properties of compounds? Select all that apply.
BlackZzzverrR [31]
A. Smell (Oder) B. Color and D I’m pretty sure because the common properties are Color, Oder, Melting point, and boiling point
8 0
3 years ago
In what form metals are found in nature
Alika [10]

Answer:

Metals in nature are found in rock form, mineral forms etc..

7 0
3 years ago
Read 2 more answers
Other questions:
  • Potential energy is based on an objects <br><br> A)gravity<br> B)mass<br> C)position <br> D)kinetic
    9·1 answer
  • The solubility of acetanilide is 12.8 g in 100 mL of ethanol at 0 ∘C, and 46.4 g in 100 mL of ethanol at 60 ∘C. What is the maxi
    8·1 answer
  • what is the specific heat capacity 82.4g of a metal that is absorbed 846 joules of heat as the temperature increases from 25c to
    5·1 answer
  • Name this compound please ​
    7·1 answer
  • Which of the following methods for increasing the rate of chemical reaction increases the effectiveness of the interactions betw
    10·1 answer
  • Explain how the principal of uniformitarianism is used to interpret earths past
    7·1 answer
  • Which is true of a solute dissolved in a solvent?
    7·2 answers
  • At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3 At this temp, 0.3000 mol of H2 and 0.300 mol o
    10·1 answer
  • Iron metal can be obtained from iron ore, iron (III) oxide. When the iron (III) oxide is reacted with carbon monoxide gas it for
    12·1 answer
  • What is observed when magnesium is reacted with hydrochloric acid? choose all that apply
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!