After 22,800 years, approximately what percentage of the original carbon-14 remains?

Which element has the larger atomic radius lithium or potassium

How many milligrams of sugar does the milk chocolate bar contain? Express your answer in milligrams to four significant figures.

How many numbers are there in the periodic table

Which two particles have opposite charges? (1) an electron and a neutron (2) an electron and a proton (3) a proton and a neutron (4) a proton and a positron

1. What is the difference between a molecular formula, structural formula and an electron dot formula?

Blanking and Punching size:A compound die will be used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 3.80 mm thick. The outside diameter of the washer is 60.0 mm and the inside diameter is 28.0 mm.

Whats the difference between china and Europe

Iodine pentafluoride gas reacts with iodine fluoride gas producing iodine heptafluoride gas and iodine gas. What is the maximum number of grams of iodine gas that can be produced from a reaction of 10.0 g of iodine pentafluoride with 11.

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used