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Viktor
[21]
4 years ago
7
Clay has a negative charge. What (3) nutrients need by plants have a positive charge?
Chemistry
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1
answer:
zimovet
[89]
4 years ago
3
0
Calcium, sodium and hydrogen
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sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?
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3 years ago
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A compound is formed when 171.2g of carbon reacts with 28.8 g of hydrogen what is the mass percent of hydrogen in the compound
PolarNik [594]
Hi.
You can calculate mass percent by dividing the mass by the total mass of the compound & multiplying by 100.
28.8 ÷ (171.2 + 28.8) = 0.144
0.144 · 100 = 14.4
I believe the mass percent of the hydrogen in the compound is 14.4%
~
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3 years ago
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Can somebody help me
Anastaziya [24]
It would be:
2H2 + O2 -> 2H2O
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