Primeira página
/
Química
/
What do these two changes have in common? stapling an envelope shut rain forming in a cloud Select all that apply. Both are only physical changes. Both are chemical changes. Both are caused by heating. Both are caused by cooling.

Pergunta

What do these two changes have in common?
stapling an envelope shut
rain forming in a cloud
Select all that apply.
Both are only physical changes.
Both are chemical changes.
Both are caused by heating.
Both are caused by cooling.

What do these two changes have in common? stapling an envelope shut rain forming in a cloud Select all that apply. Both are only physical changes. Both are chemical changes. Both are caused by heating. Both are caused by cooling.

Solução

expert verifiedVerification of experts
4.0308 Voting
avatar
WandaMestre · Tutor por 5 anos

Responder

A

Explicação

## Step 1<br />The problem asks us to identify the commonality between two processes: stapling an envelope shut and rain forming in a cloud. <br /><br />## Step 2<br />Stapling an envelope shut involves physically manipulating the envelope, but it does not alter the chemical composition of the envelope. This is a physical change.<br /><br />## Step 3<br />Rain forming in a cloud is a process where water vapor condenses into liquid water. This is also a physical change, as the chemical composition of the water does not change during this process.<br /><br />## Step 4<br />Based on the above analysis, both processes are physical changes, not chemical changes. Therefore, the correct answer is "Both are only physical changes."
Clique para avaliar: