I believe the answer is Exothermic
Answer:
use the rule of speed
Explanation:
speed =distance over time
Answer:
A hydrocarbon and oxygen
Explanation:
hydrocarbon is being burned, and oxygen is necessary to burn things
The answer is work i believe
Answer;
Ge and As.
Explanation;
Elements Ge and As belong in the same period as krypton.
Each row of the periodic table is called the period.
Elements in each period have the same number of electron shells.
These elements in the same period do not have similar properties- the properties change greatly across every period. Krypton is in period four therefore all the elements in period 4 have four electrons shells.