How many significant digits will the answer in the following calculations result in? 12.1 - 12.004

The answer will result in one significant digit.

Explanation:

1. Subtract:

     12.1 - 12.004 = 0.096

2. ROund to the correct number of significant digits:

      For addition and subtraction we round the sum or the difference to the least number of digits after the decimal point there are in the problem.  

      For example, SInce 12.1 has one number after the decimal point and 12.004 has three numbers after the decimal point, we round the answer to one number after the decimal point because 12.1 is the number in the problem which has the least amount of digits after the decimal point.

     We round 0.096 to 0.1.

     0.1 has one significant digit.

catya that's not even a b or c

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o