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kobusy [5.1K]
3 years ago
6

Atoms of hydrogen can become helium atoms during a chemical reaction. True False

Chemistry
2 answers:
Cloud [144]3 years ago
5 0
Falsee

Can’t change into another.
marishachu [46]3 years ago
3 0

Answer:

false

in chemical reaction element doesnot change into another

Explanation:

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A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initi
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The answer is C : 15.7 m/s
Use the idea of : momentum before collision = momentum after collision

Before collision;
For car:mass=1.1×10^3, velocity=22
For truck:mass=2.3×10^3, velocity=0
After collision;
For car:mass=2.3×10^3, velocity=-11
For truck:mass=2.3×10^3, velocity=V
(1.1×10^3 × 22) + (2.3×10^3 × 0) = (1.1×10^3 × -11) + (2.3×10^3 × V)
24200 = -12100 + 2.3×10^3V
2.3×10^3V = 36300
V = 15.7 m/s
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3 years ago
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What happens to the molarity of bleach when you prepare a solution using 1 gallon of water and 5 table spoons of bleach (sodium
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Answer:

Due to the presence of caustic soda in sodium hypo chlorite, the pH of the water is increased. When sodium hypo chlorite dissolves in water, two substances form, which play a role in for oxidation and disinfection. These are hypochlorous acid (HOCl) and the less active hypochlorite ion (OCl-).

Explanation:

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Second: SiF4 higher
Third: CBr4 higher

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Chemists investigated an unknown substance and found it to have the following characteristics:
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The answer is option C.

That is it is a heterogeneous mixture.

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