Answer:
MgBr2
Explanation:
On the periodic table, Magnesium has 2+ charge and Bromine has -1 charge.
You cross charges and get MgBr2
Answer: 6.88M
K= [N204]/[NO2]^2
[NO2]= 0.2M
K=172
[N204]=K * [N02]^2
172 *0.2^2
=6.88M
it is also know as biological diversity
it refers to the varieties or various forms of plants and animals species
Answer: B) It presents the correct sequence of events in Earth’s history.
Explanation: edge 2021
