How many moles are in 297 g of NH3? How many moles are in 95 g of MgCO3?

What is the mole of 1.9 x 1026 formula units K2CO3?

How many grams are in 21.7 mol H2O?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Salt in oceans comes from and of rocks

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.