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Zina [86]
4 years ago
8

The blank variable in an investigation is the variable that changes in response to changes in the investigation

Chemistry
1 answer:
AveGali [126]4 years ago
8 0

Answer:

Dependent  

Explanation:

It is called that because its value depends on changes the investigator makes.

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What happens when sodium and cholorine are mixed
tigry1 [53]

Answer:

The short of it is you would create salt.

Explanation:

If sodium metal and chlorine gas mix under the right conditions, they will form salt. The sodium loses an electron, and the chlorine gains that electron. This reaction is highly favorable because of the electrostatic attraction between the particles. In the process, a great amount of light and heat is released.

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3 years ago
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Write balanced chemical equations for the two ionization steps of sulfuric acid
madreJ [45]
Hello!

Sulfuric acid (H₂SO₄) is a strong diprotic acid. "Diprotic" means that the acid donates 2 protons when dissociating in water to form ions. This happens in a series of two steps which are described below. The first reaction is basically a complete reaction while the second one is an equilibrium:

H₂SO₄(aq) + H₂O(l) → HSO₄⁻(aq) + H₃O⁺(aq)

HSO₄⁻(aq) + H₂O(l) ⇄ SO₄⁻²(aq) + H₃O⁺(aq)

Have a nice day!
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4 years ago
What is the diet of sloth bears ?​
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This is what I got hope it helps

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3 years ago
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Aluminum foil, cast iron pans, copper pipes, graphite, and sea water can be classified as
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For each of the following amounts, calculate the mass
nalin [4]

The masses of the following amount of compound are as follows:

a. 2080.12 grams of barium iodide

b.1139.2 grams of sulphur dioxide

c. 96.25 grams of AspirinTM

d. 27.144 grams of magnesium nitrite

The molarity formula is represented as follows;

molarity = mass / molar mass

Recall we are ask to find the masses of the compounds. Therefore,

  • mass = molarity × molar mass

<h3>Mass of BaI₂</h3>

a 5.32 mol barium iodide, BaI₂

molarity = 5.32 mol

molar mass of  BaI₂ = 137 + 127(2) = 137 + 254 = 391 g/mol

mass = 5.32 × 391 = 2080.12 grams.

<h3>Mass of SO₂</h3>

b. ) 17.8 mol sulphur dioxide, SO₂

molarity = 17.8 mol

molar mass of SO₂  = 32 + 32 = 64 g /mol

mass = 17.8 × 64 = 1139.2 grams.

<h3>Mass of CHO₄</h3>

c. 1.25 mol AspirinTM, CHO₄

molarity = 1.25 mol

molar mass of  CHO₄ = 12 + 1 + 64 = 77 g / mol

mass = 1.25 × 77 = 96.25 grams

<h3>Mass of Mg(NO₂)₂</h3>

d. 0.234 mol magnesium nitrite, Mg(NO₂)₂

molarity = 0.234 mol

molar mass = 24 + 14(2) + 32(2) = 24 + 28 + 64 = 116 g/mol

mass = 116 × 0.234 = 27.144 grams.  

learn more on masses here: brainly.com/question/10312739?referrer=searchResults

6 0
2 years ago
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