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Rules for Numbers WITHOUT a Decimal Point
START counting for sig. figs. On the FIRST non-zero digit.
STOP counting for sig. figs. On the LAST non-zero digit.
Non-zero digits are ALWAYS significant.
Zeroes in between two non-zero digits are significant. All other zeroes are insignificant.
Answer:
2Fe + 3H2SO4 ---> Fe2(SO4)3 + 3H2
Explanation:
count the number of atoms of each of the elements on both sides of the equation. on the left, you have 1 Fe, 2H, 1 S, and 4 O. on the right you have 2 Fe, 3 S, 12 O, and 2 H. compare both of these. you can see that the number of atoms on both sides doesn't match up. add coefficients to the compounds and elements to balance them. it may take a while to get it right. make sure when you are re counting with the coefficient, you don't forget to distribute it to all atoms (for example, if you have 3H2SO4, you have 3 H2's, 3 S's, and 3 04's)
6000 I pretty sure tell me if it's right
