3 years ago

Is burning of wood a reversible or irreversible change

Chemistry

2 answers:

natima [27]3 years ago

8 0

Answer:

can you reverse the ashes back into wood? If you can't then it is irreversible

nignag [31]3 years ago

3 0

Answer:

burning of wood is an irreversible change bcoz wood after burning wood converted to ashes cannot be converted back to wood nd its chemical composition also changes

You might be interested in

Help please please please please

Rom4ik [11]

Answer:

D. 18.7 grams

Explanation:

The coefficients are the key.

Create a proportion with them, and the molar mass, and then solve for x:

$\frac{2}{3} = \frac{x}{28} \\ 3x = 2(28) \\ 3x = 56 \\ x = 18.666... = 18.7$

7 0

3 years ago

Potassium

ad-work [718]

Answer:

We observe that hydrogen burns at mouth of beaker with blue flame and pop sound is heard. It is a chemical change.

4 0

3 years ago

What does an object's apparent size depend on?

ipn [44]

Answer:

D. its actual size and distance from an observer

Explanation:

haha aint i the brainliest

jst kidding

hope it helped u

3 0

3 years ago

Wch of the following phrases is the best definition of science?

krek1111 [17]

Answer: A i think

Explanation:

7 0

3 years ago

Read 2 more answers

A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound res

gogolik [260]

Answer:

c. Cr

Explanation:

$Cr^3+(aq) + CO_3^2-(aq) ------------> Cr_2CO_3(s)$

The compound is containing $CO_3^2-$ ion.

If acid reacts with it, CO_2 evolves.

$H^+ + CO_3^2- ----------> H_2O + CO_2$

therefore, Cr would form a precipitate when added to an aqueous solution of this compound. Cr2CO3 is the precipitate.

3 0

3 years ago