Avogadro's number can be defined as a sample of any element weighs a number of grams equal to the average atomic mass of that element and contains 6.022 x 10^23 atoms or one mole of that element. Calculate the mass of 1 mole of silicon atoms.

A)32.19

B) 12.09

C) 14.0 g

D) 28.1 g

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.