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
Musya8 [376]
2 years ago
12

7. Which of the following changes could be associated with either a chemical change OR a

Chemistry
1 answer:
Elan Coil [88]2 years ago
5 0

Answer:

a: chemical change because the change cannot be reversed.

b: physical change because the action can be reversed.

c: chemical change.

d:chemical change.

any change that cannot be reversed is a chemical change and any change that can be reversed is a physical change.

You might be interested in
The elaboration likelihood model emphasizes the use of __________ persuasion and __________ persuasion methods. A. direct . . .
Angelina_Jolie [31]

Answer:

It's C, direct and peripheral.

Explanation:

Just took the test

6 0
2 years ago
Read 2 more answers
The weather report says that if the temperature drops 10°, it will reach 25° below zero. The current temperature T can be found
Neporo4naja [7]

Answer:

The current temperature is -15° (15° below zero)

Explanation:

The temperature drops 10°:

T-10°

It will reach 25° below zero:

T - 10° = -25°

We add 10° in both members of the equation:

T - 10° +10° = -25° +10°

The equation is simplified as follows:

T = -25° +10°

T = -15°

The integer -15° can be expressed as 15° below zero.

8 0
3 years ago
PLEASE HELP ASAP I NEED IT
Lapatulllka [165]

the answer is true the first one

3 0
3 years ago
HELP PLEASE !!!!
love history [14]
<span>Answers are:
-4 for C in CH4, because carbon has greater electronegativity than hydrogen and he attracts shared electrons.
</span><span>+4 for C in CO2, because carbon has smaller electronegativity than oxygen.
</span><span>+1 for H in both CH4 and H2O, because hydrogen has amaller electronegativity than both carbon and oxygen. 
</span>
7 0
3 years ago
Read 2 more answers
Hannah is investigating how all of Earths systems can affect each other at any given moment. What is one way the cryosphere can
snow_lady [41]
The cryosphere can affect the atmosphere by letting the Earth get to warm. The cryosphere protects the Earth from getting to warm.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance
    7·2 answers
  • What is the approximate percentage of nitrogen in<br> the Earth's current atmosphere?
    12·1 answer
  • The following characteristics describe which of these terms? The substance is uniform in appearance and each part of the mixture
    11·1 answer
  • When you count up the electrons in a Lewis Structure, do double and triple bonds count as 4 or 6 electrons?
    10·1 answer
  • Is H2O a polar or non polar compound?
    8·2 answers
  • Explain.Car side mirrors do not work when they are convered with frost. What does frost do no the surface of a mirror to cause a
    6·1 answer
  • one part of dalton's atomic theory states: compounds are formed by combinations of atoms from two or more elements. is this stat
    14·1 answer
  • A syringe containing 1.50 mL of oxygen gas is cooled from 99.8 ∘C to 0.4 ∘C. What is the final volume Vf of oxygen gas?
    6·1 answer
  • Please explain the difference between reactants and products in a chemical reaction.
    11·1 answer
  • Answer truthfully:))​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!