How many moles are in 41.52g of sand

Why does the author compare light to a duck-billed platypus

Express 1123 pg in nanograms.

What are heavy metals that can be taken up by plants

In a step-down transformer, which side has more wire loops? A. the primary side B. the secondary side C. Both sides must have the same number of wire loops. D. The number of wire loops is not relevant.

A serving of a breakfast cereal contains 3 g of protien, 18 g of carbohydrats, and 6 g of fat. What is the calorie content of a serving of thi cereal if the average number of Calories for fat is 9.1 Calories/g. for carbohydrates is 4.

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container.

Why is fluorine a gas?

What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl?-pcl5-pcl3-p2cl10-p2cl5

Use the equation 2HgO--> 2Hg+O2 to find how many moles of mercury are produced if 27 g of oxygen are produced. 2.1 1.3 2.6 2.4

How much mass does an electron, proton, and neutron have?