Answer:
4 significant digits
Explanation:
Zeroes placed between other digits are always significant
Answer:
A. Add a coefficient 4 before h2o and add a 2 before so2
Explanation:
Answer:
Answer = 410.02277904328
Explanation:
1,800 N * 
= 410.02277904328 m
hope this helps.
<em>TLDR: They should be the same by the conservation law of masses. </em>
Now it may appear as if they changed if one of the resulting products is in the form of a gas or another hard to examine and weigh. In those situations it may seem that the masses will change, but the ratio should remain constant. <em>Try looking up 3.7: Conservation of Mass - There is No New Matter on ChemLibre for more information on this topic that goes more into depth about it. </em>
Both mass and weight are measured by using scales.
