Answer:
Yes
Explanation:
As long as its a solid, you can count it. It will be hard, but possible.
A, They Lower The Activation Energy.
Answer:d
Explanation: over time water evaporates which leaves you with the white crystals mass
The correct answer is 42. I know this answer is right because i have already turned my assignment in and got it right.
Answer:
1400KJ/mol⁻¹
Explanation:
Amount of heat required can be found by:
Q = m × c × ΔT
<em>Where m is the mass, c is the specific heat capacity (4.2KJ for water) and ΔT is the change in temperature.</em>
Q = 24 × 4.2 × (23 - 9)
= 24 × 4.2 × 14
= 1411.2KJ/mol⁻¹
= <u>1400KJ/mol⁻¹</u> (to 2 significant figures)
