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skelet666 [1.2K]
3 years ago
10

I’ll give Brainliest to the first answer

Chemistry
1 answer:
Sever21 [200]3 years ago
7 0

Answer:

C. equal to, elements, products

Explanation:

I took a quiz and it said this was right

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If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form
tigry1 [53]

Answer:

709 g  

Step-by-step explanation:

a) Balanced equation

Normally, we would need a balanced chemical equation.

However, we can get by with a partial equation, as log as carbon atoms are balanced.

We know we will need an equation with masses and molar masses, so let’s <em>gather all the information</em> in one place.  

M_r:    30.07          236.74

           C₂H₆ + … ⟶ C₂Cl₆ + …  

m/g:    90.0

(i) Calculate the moles of C₂H₆

n = 90.0 g C₂H₆  × (1 mol C₂H₆ /30.07 g C₂H₆)

  = 2.993 mol C₂H₆

(ii) Calculate the moles of C₂Cl₆

The molar ratio is (1 mol C₂Cl₆/1 mol C₂H₆)

n = 2.993 mol C₂H₆ × (1 mol C₂Cl₆/1 mol C₂H₆)

  = 2.993 mol C₂Cl₆

(iii) Calculate the mass of C₂Cl₆

m = 2.993 mol C₂Cl₆ × (236.74 g C₂Cl₆/1 mol C₂Cl₆)

m = 709 g C₂Cl₆

The reaction produces 709 g C₂Cl₆.

6 0
3 years ago
The density of copper decreases as temperature increases (as does the density of most substances). Which change occurs in a samp
azamat

Answer: Option (c) is the correct answer.

Explanation:

As we know that density the amount of mass present in per unit volume.

Mathematically,      Density = \frac{mass}{volume}

So, it means that density is inversely proportional to volume. Hence, when there will be decrease in density of a substance then there will be increase in its volume. That is, expansion of substance will take place.

Also, boiling point of copper is 2,562 degree celsius but we are heating it up to a temperature of 95 degree celsius. This means that copper will remain in liquid state at this temperature.

Thus, we can conclude that a change which occurs in a sample of copper is that copper sample will expand.

3 0
3 years ago
Protons,neutrons,and electrons
ddd [48]
Protons, Electrons, and Neutrons are all parts of atoms, the electrons are on the outside rings of the atom, with the neutrons and electrons on the inside of the atom. The electrons are negatively charged, while the protons are positively charged and the neutrons no charge/neutral. Let me know if you would like to learn more!
4 0
3 years ago
Which reaction should be used to convert propene into alkyl halide
Firdavs [7]
<span>Alkyl is a rare compound, and also very confusing.
I'm assuming you meant "propane"...
</span>
<span><span><span>C3H<span>8  = Propane
</span></span>CnH2n+1-- X</span>  << Alkyl Halide
X = Cl

Simply set a chemical reaction :

</span>
<span>C3H<span>8 → </span></span><span>CnH2n+1-- X </span>



5 0
3 years ago
How do new traits enter a population?
nadezda [96]
Answer: By the way that population is treated and also by new borns.

Explanation: new borns are given traits based off their parents but also new traits that are developed off of their own. Now if that population has access to resources and a lot of it. Chances are they will become bratty,selfish and things such as.
4 0
3 years ago
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