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
My name is Ann [436]
3 years ago
11

SOMEONE PLEASE HELP

Chemistry
1 answer:
Snowcat [4.5K]3 years ago
6 0

Answer:

a. release of heat flames or light - Physical Change

b. formation of precipitate - Chemical Change

c. change in substances size - Physical Change

d. change in an objects shape - Physical Change

e. change in an objects phase of matter - Physical Change

f. releasing gases/bubbles - Chemical Change

Explanation:

These are all either changes in physicality or in chemical structures; hope I helped either way!

You might be interested in
11. The back part of the cerebrum deals with hearing<br><br> True<br><br> False
Sunny_sXe [5.5K]

Answer:

The answer is: True

5 0
3 years ago
5. The bond in a molecule of Cl2 could be described as
jenyasd209 [6]

the bond in a molecule of Cl2 is a covalent bond

6 0
3 years ago
What does velocity describe
White raven [17]
<span>Velocity describes the speed of an object and its direction of motion</span>
7 0
3 years ago
Read 2 more answers
Advantages and disadvantages of using tidal energy instead of non-renewable energy sources.​
Phantasy [73]

Advantages of using tidal energy:

-Environment-friendly

-A highly predictable energy source

-High energy density

-Operational and maintenance costs are low

-An inexhaustible source of energy

Disadvantages of using tidal energy:

-High tidal power plant construction costs.

-Negative influence on marine life forms.

-Location limits.

-The variable intensity of sea waves.

3 0
3 years ago
Match the name of each gas law to the properties it compares. 1. Gay-Lussac's law 2. Boyle's law 3. Avogadro's law a. Volume and
oee [108]

Answer:

1. C    2. B     3.  A

Explanation:

1. Gay- Lussac law, states that as along as the volume is kept constant, the      pressure of a fixed mass of gas is directly proportional to the temperature.

The properties it compares is; (c.) Pressure and temperature

2.  Boyle's Law states that; as long as the temperature is kept constant, the volume of a fixed mass of gas is inversely proportional to the pressure.

It therefore compares; (b.) Pressure and volume

3. Avogadro's Law states that equal volumes of different gases contain the same number of molecules provided the temperature and pressure are the same.

It therefore compares;  (a.) Volume and moles

6 0
3 years ago
Other questions:
  • A sample of 23.2 g of nitrogen gas is reacted with
    5·1 answer
  • The temperature is -14°C the air pressure in an automobile tire is 149K PA if the volume does not change what is the pressure af
    12·1 answer
  • When a theory is disproved by further evidence, which of the following occurs?
    5·2 answers
  • What is the formula for this ionic compound and tha name ?
    15·1 answer
  • Question 25———-A, YA are two isotopes of element A.
    14·1 answer
  • Oxidation of a dithiol such as 2,5-hexanedithiol forms a six-membered ring containing a disulfide group as part of the ring. Dra
    11·1 answer
  • What is the pressure of nitrogen in atmospheres of a sample that is at 516.0 mm hg?
    7·1 answer
  • How many moles are in 55 g or NaCk
    15·1 answer
  • Describe what the greenhouse effect is and how it is caused on a molecular level.
    5·1 answer
  • PLEASE HURRY!! WORTH 50 POINTS!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!