Chemistry, 21.05.2021 19:50 chloeneedshelp2008
1. What is the mass in grams of 2.25 mol of the element iron, Fe?
2. What is the mass in grams of 0.375 moles of the element potassium, K?
3. How many moles of calcium, Ca, are in 5.00 g of calcium?
4. How many moles of gold, Au, are in 3.60 x 100 g of gold?
5. How many moles of lead, Pb, are in 1.50 x 1012 atoms of lead?
6. How many moles of tin, Sn, are in 2500 atoms of tin?
7. What is the mass in grams of 7.5 x 1015 atoms of nickel, Ni?
8. How many atoms of sulfur, S, are in 4.00 grams of sulfur?
Answers: 3
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Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.
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Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. moss campion is one of the plants found in the alpine biome. it has small leaves and a cushion shape that protect it from the wind and freezing temperatures in the alpine. how has the moss campion adapted to enable its survival in the alpine biome? a. waxy needles b. cone-shaped c. thin trunks d. low-growing
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1. What is the mass in grams of 2.25 mol of the element iron, Fe?
2. What is the mass in grams of 0...
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