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kiruha [24]
3 years ago
12

How many control(s) are in an experiment

Chemistry
1 answer:
weqwewe [10]3 years ago
6 0
You can have as many controls as necessary, But they must remain equal at all times in order to get the most accurate results
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Is a process that could be used to seperate dissolved particles from the liquid in a solutoin?
kaheart [24]
Salutations!

_____ Is a process that could be used to separate dissolved particles from the liquid in a solution?

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5 0
3 years ago
A scientist wants to perform a controlled experiment to test the effect of rust on chemically treated iron. which action would b
olga2289 [7]
The answer is to test a piece of untreated and treated under same conditions!
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Calculate the mass of sodium phosphate in aqueous solution to fully react with 37 g of chromium nitrate(III) an aqueous solution
Alla [95]

Answer:

41 g

Explanation:

The equation of the reaction is;

Cr(NO3)3(aq)+Na3PO4(aq)=3NaNO3(s)+CrPO4(aq)

Number of moles of chromium nitrate = 37g/ 146.97 g/mol = 0.25 moles

1 mole of sodium phosphate reacts with 1 mole of chromium nitrate

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x= 1 × 0.25/1

x= 0.25 moles

Mass of sodium phosphate = 0.25 moles × 163.94 g/mol

Mass of sodium phosphate = 41 g

4 0
3 years ago
Klklklkllkllklkklkllkl
Svetradugi [14.3K]

Answer:

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5 0
3 years ago
A golf ball has more mass than a tennis ball because it ?
dedylja [7]
Most tennis balls are usually hollow, while golf balls are not. Therefore a golf ball contains more mass.

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3 years ago
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