6. chemical equation

Question 1

what’s the definition of an element?

Answer 1

1. monoatomic elements
2. diatomic molecules that as two molecules chemically combined
3. polyatomic molecules that as three or more molecules chemically combined

Question 2

What is the definition of a compound?

Answer 2

1. made up of atoms of elements chemically combined

Question 3

How to determine a charge of a atom?

Answer 3

by looking at the group in the periodic table. For example: group 1 is +1 charge

Question 4

What is the overall charge of a compound?

Answer 4

0

Question 5

deduce magnesium chloride as a eqn

Answer 5

MgCl2

Question 6

balance the eqn:
Na+Cl2=NaCl

Answer 6

2Na+Cl2=2NaCl