Question

The results of adding excess marble chips (calcium carbonate) to hydrochloric
acid at 50 °C and at 30 °C are shown. Only the temperature is changed.
50°C
30°C
volume of
carbon dioxide
given off/cm
0-
0
time/s
Which row describes the reacting particles at 30 °C compared to those at 50 °C?
Collision Rate
A.
Collision Energy
Higher
Lower
Higher
Lower
Higher
Higher
Lower
B.
C.
D.
Lower​

Answer 1

Answer:

The volume of liquid ethanol in an open beaker reduces. ... dioxide gas made when different masses of marble chips are added to 25cm. 3 ... C 1 and 3. D 1, 2 and 3. 8 What is the relative formula mass, Mr, of CaCO3 ? so yeah A