Answer:
D
Explanation:
total mass should be equal on both sides
it's a double do displacement reaction
HCl + NaOH --> NaCl + H2O
Answer:

Explanation:
Given


Required
Determine the percentage error
First, we need to determine the difference in the measurement




The percentage error is calculated as thus:




<em>approximated</em>
The answer is D, because "Animals without a backbone are invertebrates."
The answer is statement #3.