Two isotopes of carbon are known: Carbon-12 and carbon-13. There relative abundances are 98.9% and 1.19 % respectively. Calculate the average atomic mass of carbon.

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?