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irga5000 [103]
3 years ago
14

Helppppppp. much needed help lol

Chemistry
2 answers:
Korolek [52]3 years ago
8 0
Isotope is the correct answer
Olenka [21]3 years ago
3 0

Answer:

Isotope

Explanation:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

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What is HNO3 it's formula​
Klio2033 [76]

Answer:

Nitric acid

Explanation:

HNO3 in word form

6 0
3 years ago
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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
What are Properties that can be recognized only when substances react or do not react
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Answer:

Chemical properties can be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition. A chemical property of one substance usually involves its ability to react or not react with another specific substance.

4 0
2 years ago
In a chemical equation, what name does the left side have
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On the left side would be your reactants and the right would be your products
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A : The number of particle collision increases
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