Regional climate is caused by factors around the planet because around the world, if the sun is facing the part of the world you are in, it's going to be hot. Or, in Alaska for example, it is almost always cold because it's most of the time facing away from the sun.
Answer:
a covalent bond
Explanation:
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
<h3><u>Answer;</u></h3>
= 3.12 moles of NaNO3
<h3><u>Explanation</u>;</h3>
The equation for the reaction is;
Pb(NO3)2+Na2CrO4 → PbCrO4+2NaNO3
Molar ratios in the reaction are ; 1 : 1 : 1 : 2
Which means; One mole of (Na2CrO4) produces two moles of (NaNO3)
We can calculate the number of moles of Na2CrO4,
Moles (na2CrO4) = 253g /162
= 1.56 moles
Moles of NaNO3 will be;
= 1.56 moles x 2 = 3.12 moles
Therefore, the moles of NaNO3 that will be produced will be 3.12 moles
