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Goryan [66]
3 years ago
11

What's a member of the boron family and the most abundant metal in the earths crust

Chemistry
1 answer:
Serga [27]3 years ago
4 0
Aluminum (al) is the most abundant metal in earths crust that is a member of the Boron family.
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A drought is a long period of dryness. If animals fight during a drought, which basic need is most likely limited?
kicyunya [14]

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Water. No water falls from the sky during such times.

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PLEASE HELP!!!! <br><br> Draw a representation of John Dalton’s atomic model.
larisa [96]

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John Dalton's Atomic Model Below ⬇

Explanation:

7 0
2 years ago
The reaction of hydrogen gas and iron oxide is described by the chemical equation below. 3H2+Fe2O3→2Fe+3H2O How many moles of ir
ELEN [110]

Answer:

2.2 moles of Fe will be produced

Explanation:

Step 1: Data given

Number of moles of hydrogen gas = 3.3 moles

Number of moles of iron oxide = 1.5 moles

Step 2: The balanced equation

3H2 + Fe2O3 → 2Fe + 3H2O

Step 3: Calculate the limiting reactant

For 3 moles H2 we need 1 mol Fe2O3 to produce 2 moles Fe and 3 moles H2O

Hydrogen gas is the limiting reactant. It will completely be consumed (3.3 moles). Fe2O3 is in excess. There will react 3.3 / 3 = 1.1 moles

There will remain 1.5 - 1.1 = 0.4 moles Fe2O3

Step 4: Calculate moles Fe

For 3 moles H2 we need 1 mol Fe2O3 to produce 2 moles Fe and 3 moles H2O

For 3.3 moles H2 we'll have 2/3 * 3.3 = 2.2 moles Fe

2.2 moles of Fe will be produced

5 0
3 years ago
Enzymes allow chemical reactions to occur _____?
Ratling [72]
A. They speed up chemical reactions
4 0
2 years ago
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How many grams of ammonia (NH3) can be produced when 25 g of nitrogen gas reacts with 28 grams of hydrogen gas
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34 g of NH₃

Explanation:

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