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AfilCa [17]
3 years ago
12

Describe what you would do to form a heterogeneous mixture of sugar and salt

Chemistry
1 answer:
Fofino [41]3 years ago
6 0
What I would do to form. A heterogeneous mixture of sugar and salt. C
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A sample of seawater contains 1.3 g of calcium ions in 3,100 kg of solution. what is the calcium ion concentration of this solut
IrinaVladis [17]

A unit of ppm has an acronym of parts per million. The equivalent units of ppm is therefore mg/L and mg/kg. So the ppm is:

mass Ca+ = 1.3 g = 1300 mg

 

ppm = 1300 mg / 3100 kg

<span>ppm = 0.42 ppm</span>

6 0
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Is helium a metal, non metal or metalloid?
ioda

Helium is a nonmetal. There are several reasons for this, it is unable to donate electrons and It has an extremely low melting point.

4 0
4 years ago
If a gas is compressed from 4 L to 1 L and the temperature remains constant, what happens to the pressure?
Luba_88 [7]
If T=const
P1V1=P2V2
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4 0
3 years ago
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COMPOSICIÓN PORCENTUAL
Allisa [31]
Óxido de hierro (lll)
8 0
4 years ago
Hydrogen reacts with 0.771 g of carbon to form 0.90 g of a compound. What is the mass percent of hydrogen in the compound
morpeh [17]
Answer: 14.3%

Explanation: In order to find the mass percent of hydrogen in this compound, you must determine how many grams of hydrogen you'd get in 100 g of compound. 

In your case, you know that an unknown mass of hydrogen reacts with 0.771 g of carbon to form 0.90 g of hydrocarbon, which is a compound that contains only carbon and hydrogen. 

Use the total mass of the hydrocarbon to determine how many grams of hydrogen reacted with the carbon.

Now, if 0.90 g of this compound contain 0.129 g of hydrogen, it follows that 100 g of this compound will contain.

So, if 100 g of this compound contain 14.33 g of hydrogen, it follows that the mass percent of hydrogen is 14.3%


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4 0
4 years ago
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