chemistry
posted by Ana .
urgent help needed!!!
what is .0966 rounded to 2 significant digits? and why?

chemistry 
Anonymous
9.7*10^2 or 0.097
leading zeros are not significant
since u want 2 significant digits you round .0966 to 0.097. 
chemistry 
monarch
how many grams of carbon dioxide is formed when 3g of carbon reacts with 50.00 g of oxygen?

chemistry 
MathMate
Piggyback questions are likely to be missed.
Please make a separate post.
Respond to this Question
Similar Questions

Chemistry
please check my answers for the following questions. 1) when a measurement that has six significant digits is divided by a measurement that has three significant digits, how many significant digits should the answer have? 
chemistry  significan digits
#1) Complete the following calculation by providing the correctly rounded answer in SI Units: 6.25 g divided by 8.25 g/mol #2)You are using a scale that has an accuracy of 0.01g. Suppose you have been told that one raisin has a mass … 
Chemistry
We are currently studying significant digits/figures. I was asked to add 150 ml with 76.9 ml, plus 209 ml plus 0.036 ml. The book says the answer is 440, but I got 435. (the complete answer, without applying the significant digits … 
Chemistrysig figs
Each of the following numbers was supposed to be rounded to two significant figures. For each one below, decide whether it was correctly rounded or not, and for those that were incorrectly rounded, correct them (a) 1.249 X 10 to the … 
Physics
Calculate the answer for the following question and state the answer with the correct certainty and units. Given the values of b and h, find A. b=3.2 cm, h=10.1 cm A=1/2bh The answer is 16 cm^2, which was rounded to two significant … 
chemistry
this is over significant digits. Indicate how many significant figures are in each of the following measurements: e) 4.0 X 105 kg i got 1 significant digit, but i'm not sure it if it's right... (& i can't ask my teacher, the situation … 
Physics
Talking about significant figures, my Physics textbook lists 5 rules for determining significant figures. 1) All nonzero digits are significant. 2) Zeros to the right of nonzero digits in a number containing a decimal point are significant. … 
Chemistry urgent!
Perform the following operations and express the results in the correct number of significant digits or decimal places. Express all results in scientific notation. Please help me I'm so confused on how to do this!! 15. (1.71 x 10^6)(6.73 … 
math (significant digits)
(3.x10^2) + (0.2) round to significant digits required 
Chemistry
How much heat is needed to raise the temperature of 5.58 kilograms of iron from 20.0°C to 1000.0°C?