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Luba_88 [7]
2 years ago
8

5. Students hypothesize that temperature is a limiting factor for the germination of seeds. They carry out an experiment to

Chemistry
1 answer:
Lelechka [254]2 years ago
8 0

Answer:

keep adding to on each term its quit simple

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How many grams of calcium chloride are dissolved in 5.65 liters of a 0.11 m solution of calcium choride?
Julli [10]
C = 0.11 mol
V = 5.65 L
n = ???

n = C*V
n = 0.11 * 5.65
n = 0.622 mols

1 mol of CaCl2 = 40 + 2*35.5 = 111 grams
0.622 mol = x

x = 111 * 0.622
x = 69.0 grams CaCl2
4 0
3 years ago
What is the mass of H2O
Dovator [93]

Answer:

The exact molecular mass is 18.01528 g/mol

Explanation:

Find this by adding the molecular masses of two hydrogen atoms and one oxygen atom.

8 0
3 years ago
Igneous rocks are formed from
ArbitrLikvidat [17]

Answer:

heat and pressure

Explanation:

because it happens under heat and pressure.

4 0
3 years ago
How many electrons does it take to fill the outer energy level of most atoms
Orlov [11]
Depends on the element it can by up to 3, 8, or maybe 16.
5 0
3 years ago
Using the chemical equation below, how many moles of Al2O3 produce when 105 grams of Al are reacted? 2Al+Fe2O3 —> Al2O3+2Fe
topjm [15]

Answer:

1.94

Explanation:

moles = mass/Mr so you have 3.889 moles of aluminium, but because the ratio in the equation is 2:1 you need to halve it.

4 0
3 years ago
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