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vlabodo [156]
3 years ago
5

Please help (20 points)

Chemistry
1 answer:
AlekseyPX3 years ago
4 0

Answer:

universe, galaxy, solar system, planet

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Water containing large amounts of Mg2+and Ca2+ions is said to be hard because it is hard to make soap lather in the water. True
mafiozo [28]

Answer:True

Explanation:

Water is said to be hard when it contains calcium ions or magnesium ions dissolved in it. These ions are able to react with soap in such a way that the soap is prevented from forming lather with the water. Hard water occurs when water passes over calcium or magnesium bearing minerals and dissolves some of it. Hardness due to the presence of calcium ions can easily be removed by boiling the water.

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4 years ago
How many grams of hydrogen gas, H, are necessary to produce 119.0 g of ammonia, NH3?
Pepsi [2]

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What's the equation?

3 0
3 years ago
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Which traits does the common garter snake have that might be adaptive for the environment where it lives?
Licemer1 [7]

Answer:

As the garter snake can be found almost in any kind of habitat, what makes them be able to survive in any environment include:

1. They hibernate to increase their chances of survival in unfavorable weather conditions.

2. They can blend with the background of any environment especially grass to escape being eaten.

3. They produce an odor that is usually unpleasant especially when about to be attacked.

Explanation:

The garter snakes are distinguished by the three stripes running the length of their body and can often be found in forests, places that are even close to water bodies, and almost any place, even in holes.

 

           

4 0
3 years ago
What coefficient values will balance the reaction shown? CS2 + Cl2? CCl4 + S2Cl2 A. 1,1,1,1 B. 1,3,1,1 C. 2,1,1,1 D. 1,2,1,2
Talja [164]
The answer is B. 1,3,1,1.

Brady
5 0
3 years ago
To titrate 50.00 milliliters of an unknown HC2H3O2 sample, use 43.00 milliliters of a standard 0.1000 M NaOH titrant. What is th
rewona [7]
The molarity of the acid is 0.086 00 mol/L.

HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O

Since 1 mol of acid reacts with 1 mol of base, we can use the formula

M₁V₁ = M₂V₂

M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL

M₁ = M₂ × \frac{ V_{2}}{ V_{1}} = 0.1000 mol/L × \frac{43.00 mL}{50.00 mL} = 0.086 00 mol/L
7 0
4 years ago
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