# اجابات أسئلة الكيمياء

Compute $$3.5 \times 4.48697$$. Round the answer appropriately.
Significant Figures Solver
Compute $${1240.64}/{12.5}$$. Round the answer appropriately.
Significant Figures Solver
Compute $$9.3456 + 2140.56$$. Round the answer appropriately.
Significant Figures Solver
Convert the number $$0.000127$$ to scientific notation, then enter the answer using the MasteringChemistry format.
Scientific Notation Solver
$${4.3 \times 10^{-6}}$$ is between which two numbers?
Which of the following are equal to $$5 \times 10^{10}$$?
You wash dishes for a chemistry laboratory to make extra money for laundry. You earn $$6$$ dollars/hour, and each shift lasts $$75$$ minutes. Your laundry requires $$6$$ quarters/load.
In Europe, gasoline efficiency is measured in $$km/L$$.
A sprinter set a high school record in track and field, running $$200.0$$ m in $$21.5$$ s. What is the average speed of the sprinter in kilometers per hour?