Answer:
we use atom in our sentences all the time
Explanation:
that what i put
440 mm is equal to 4.4 dm
Answer:
2NaCl+H2SO4-->Na2SO4+2HCl
Explanation:
There are two Na on the right, so put a 2 in front of NaCl on the left. This makes 3 Cl also, so put a 2 in front of HCl on the right. There are already 2 H on the left, so the equation is balanced.
The molar mass of Fe would be 55.8450.