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
In-s [12.5K]
3 years ago
6

Which of these is an indication that a chemical reaction has occurred? A.Melting of a substance B.Boiling of a substance C.Forma

tion of a gas D.Freezing of a substance
Chemistry
1 answer:
podryga [215]3 years ago
7 0

The answer is formation of gas because melting, boiling, and freezing are only property changes

You might be interested in
Which reason best explains why metals are Malleable?
ladessa [460]

Answer:

A

Explanation:

8 0
3 years ago
Read 2 more answers
A hypothesis explains what the scientist thinks will happen during the experiment.
igor_vitrenko [27]

answer: it is true because a hypothesis is something you think will happen during a experiment

explained: I took the test

4 0
2 years ago
I need help ASAP!!!!! What happens to water when it changes to ice?
Gre4nikov [31]

- It's density increases

- mass increases

- volume increases

Hope this helps!

6 0
2 years ago
Read 2 more answers
what is the pressure inside a tank when it contains 87.3 moles of Helium if it holds 52.0 miles at 9.63 atm
Vladimir [108]
We are given
n = 87.3 moles He

no = 52.0 moles
Po = 9.63 atm

Using the relationship between Pressure and number of moles
Po/no = P/n
Substituting
9.63 atm / 52.0 mol = P / 87.3 mol
Solve for P<span />
3 0
3 years ago
lava is a hot liquid rock. when lava flows over solid ground beneath it increases in temperature. what happens to the molecules
MatroZZZ [7]

Answer:

Lava is hot liquid rock. When lava flows over solid ground, the solid ground beneath it increases in temperature. What happens to the molecules in the solid ground when the temperature is increasing? The energy of the molecules in the ground decreases.

7 0
2 years ago
Other questions:
  • Which type of hybridization leads to a trigonal planar electron domain geometry? s sp sp2 sp3
    7·1 answer
  • How many electrons can be held in the second orbital (closest to the nucleus)
    7·2 answers
  • Assume that you have a mixture of aluminum chloride and barium sulfate. aluminum chloride is soluble in water, but barium sulfat
    11·1 answer
  • The grains of sedimentary rock
    15·1 answer
  • What are some major differences between religions
    10·1 answer
  • Does everything that you can see fit the definition for matter
    5·1 answer
  • A student is using the periodic table to find information for a report on elements. One of the statements about fluorine in her
    13·1 answer
  • 1.00mol of oxygen gas has a pressure of 2.50atm at 325K. Use the ideal gas law to determine the volume of the gas.
    8·1 answer
  • Nuclear fusion differs from nuclear fission because nuclear fusion reactions- True or False
    6·1 answer
  • Suppose that 4.9 mol no2 and 0.40 mol h2o combine and react completely. which reactant is in excess?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!