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enot [183]
3 years ago
10

What is the joining of atoms to form new substances called?

Chemistry
1 answer:
kirill115 [55]3 years ago
3 0
Chemical bonds is the answer
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Refer to the example about diatomic gases A and B in the text to do problems 19 - 27. How many grams in 3 moles of A2?
dedylja [7]

B.) 3

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(GAME OF THRONES RULES

7 0
3 years ago
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How many moles of propane<br> react when 294 g of CO2 form?<br><br> C3H8 +502 → 3CO₂ + 4H₂O
tatiyna

2.23 moles of propane react when 294 g of CO₂ is formed .

<h3>What is moles ?</h3>

Moles is a unit which is equal to the molar mass of an element.

A reaction is given

C₃H₈ +50₂ → 3CO₂ + 4H₂O

Grams of CO₂ formed = 294 gm

In moles = 294 /44 = 6.68 moles.

Let x be the moles of C₃H₈ is x

Mole ratio of CO₂ to C₃H₈ = 3 : 1

so

6.68 /x = 3/1

x = 6.68 /3 = 2.23 moles

Therefore 2.23 moles of propane react when 294 g of CO₂ is formed .

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7 0
2 years ago
What is a metalloid?
Veronika [31]
an element whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.
8 0
3 years ago
A scientist made careful measurements of the pressure and temperature of many different gases. Based on these measurements, he c
alex41 [277]

Answer:

c. law

Explanation:

Law -

It is type of statement , which helps to explain certain observations , in the form of mathematical relationship or verbal statements , is referred as a law .

Law is a widely accepted information , which can get altered by some new inventions or exception.

A law is stated in words as well as in the form of some mathematical relationships or equations.

Hence , from the given information of the question,

The correct option is c. law .

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3 years ago
What is an atomic number
klemol [59]

Answer:

the number of protons is called the atomic number

hope it helps you buddy

8 0
2 years ago
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