Which of the following do scientists use to form a hypothesis?.

How many grams are in 1.11 moles of manganese sulfate, Mn3 (SO4) 7?

What coefficients are necessary to balance the equation? ___C3H8 + __O2 ® __ CO2 + H2O

The sun exerts a what ...

Why can some metals be extracted from compounds by heating with carbon and why can some not

Which fraction of an original 20.00-gram sample of nitrogen-16 remains unchanged after 35.65 seconds?

Polar molecules have a partial positive charge on one side and a partial negative charge on the other side, a separation of charge called a dipole. Which of the following molecules has this kind of a dipole? a. IonicB. Covalent

A fictitious element X is composed of 15.0% of the isotope X-51, 15.0% of the isotope X-52, and 70.0% of the isotope X-53. Estimate the atomic mass of element C

Which substance is the limiting reactant when 4.0 g of sulfur reacts with 6.0 g of oxygen and 8.0 g of sodium hydroxide according to the following chemical equation: 2 S (s) + 3 O2 (g) + 4 NaOH (aq) → 2 Na2SO4 (aq) + 2 H2O (l) A. O2 (g) B. S (s) C.

If EG = 19 and FG = 12 then EF = ?

Given the following reaction: 4Fe + 302 → 2Fe2O3 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2? grams (round to three significant figures)