PLEASE HELP QUICK If a sample of magnesium has a mass of 72.9 g, how many moles of magnesium does the sample contain?

1.00 mole Mg
1.00 mole Mg

1.50 moles Mg
1.50 moles Mg

2.00 moles Mg
2.00 moles Mg

3.00 moles Mg

3 hours because it is a decent distance.

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

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