3 years ago

Which substance can be decomposed by a chemical change? (1) Co (3) Cr(2) CO (4) Cu

1 answer:

7 0

Answer: (2) CO

Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. Since CO is a compound, it can be decomposed by a chemical change.

You might be interested in

How many moles of H atoms are there in 2 moles of CH3CH2CH2CH3?

Advocard [28]

AnSweR: 10

ExplanAtion: My random idiot friend just told me

3 0

3 years ago

Give two reasons why quarrying is bad for the enviroment

Elza [17]

Air & noise pollution
Quarry waste
Damage to biodiversity

6 0

3 years ago

How does an increase in temperature affect a chemical reaction??

blsea [12.9K]

An increase in the temperature will speed up the reaction by increasing the frequency and efficiency of the collisions of molecules.

8 0

3 years ago

B. Determine the percent composition of each element in NaCl. (1 point) Must show work to

andrey2020 [161]

Answer:

Sodium (Na): (.5 point)

22.99+35.453=58.433. 22.99/58.433= 39%

Chlorine (Cl): (.5 point)

22.99+35.453=58.433. 35.453/58.433= 61%

Explanation:

8 0

2 years ago

I need help with this please!!

GenaCL600 [577]

Answer:

Option no 3

Explanation:

Metallic elements aren't usually crumbled in normal air pressure and conditions.

6 0

2 years ago