The chemical equation below shows the reaction between tin (Sn) and hydrogen fluoride (HF). Sn + 2HF SnF2 + H2 The molar mass of HF is 20.01 g/mol. How many moles of Sn are required to react with 40 g of HF? 1 2 3 4

Three solutions are mixed together to form a single solution; in the final solution, there are 0.2 mol pb (ch3coo) 2, 0.1 mol na2s, and 0.1 mol cacl2 present. part a what solid (s) will precipitate? express your answer as a chemical formula.

What is the force applied when using a simple machine.

Why does sand conduct heat better than water? The molecules in water are closer together than the molecules in sand. The molecules in sand are closer together than the molecules in water. The molecules in sand are larger than the molecules in water.

What is the number of oxygen atoms in the ring portion of the haworth structure of glucose?

How do scientists think that Earths oceans formed?

What chemical reaction produces water via synthesis reaction

Which of the following elements has the fewest electrons

Explain ph valore through testing

Compared to an atom of hydrogen in the ground state, an atom of hydrogen in the excited state has

How much water, in liters, must be added to 0.5 L of 6 M HCl to make it 2 M? a. 0.33 b. 0.5 c. 1 d. 1.5 e. 2