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nataly862011 [7]
2 years ago
9

Test to determine whether or not a hypothesis is supported

Chemistry
2 answers:
nordsb [41]2 years ago
6 0
The test determines weither a hypotenuse was supported or not supported
Aleks04 [339]2 years ago
3 0

Answer: experiments are use to test if an hypothesis is right or wrong

Explanation:

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Balance the following chemical equation by providing the correct coefficients.
sukhopar [10]

Answer:

2Na+2H2O→2NaOH+H2

Explanation:

I think this is it

7 0
2 years ago
6. The modern view of the atom has come a long way from that of a solid, indestructible sphere
Fynjy0 [20]
It is a true statement
4 0
2 years ago
A solution with a ph of 4 has _________ the concentration of h+ present compared to a solution with a ph of 5.
Marina CMI [18]
<span>A solution with a pH of 4 has ten times the concentration of H</span>⁺<span> present compared to a solution with a pH of 5.
</span>pH <span>is a numeric scale for the acidity or basicity of an aqueous solution. It is  the negative of the base 10 logarithm of the molar concentration of hydrogen ions.
</span>[H⁺] = 10∧-pH.
pH = 4 → [H⁺]₁ = 10⁻⁴ M = 0,0001 M.
pH = 5 → [H⁺]₂ = 10⁻⁵ M = 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 0,0001 M / 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 10.
7 0
3 years ago
10) an object has mass of 50g 500mg and 0.1g. express the total mass of the object in grams
Pavel [41]
500 mg in g :

1 g ----------- 1000 mg
? -------------- 500 mg

500 x 1 / 1000 => 0.5 g

total mass:

50 g + 0.5 g + 0.1 g => 50.6 g

hope this helps!
8 0
3 years ago
What change in volume results if 60.0 mL of gas is cooled from 33.0 °C to 5.00°C?
Mariana [72]
The volume of the gas will be decreased. Answer lies on the understanding of kinetic energy of particles and how particles occupy certain amount of space.
<span>I forgot to add: the answer is 50.91 difference in temperature. </span><span><span>
</span></span>
3 0
3 years ago
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