1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verdich [7]
3 years ago
15

What does the little 2 in 2CO2 mean?

Chemistry
1 answer:
Olenka [21]3 years ago
4 0

Answer:

it means 2 oxygen atoms in the molecule

Explanation:

You might be interested in
A battery changes chemical energy into _____.
Sophie [7]
It turns chemical into electricity 
5 0
3 years ago
Read 2 more answers
How many meters are in a kilometer.
Anika [276]

Answer:

1,000 meters in 1 kilometer

Explanation:

4 0
2 years ago
How are elements in the same group similar
Georgia [21]
All the elements in one group have the same number of valence electrons.
5 0
3 years ago
Read 2 more answers
To prevent poisoning, what three items should NEVER be taken into the lab?
Roman55 [17]

The answer of this answer is given in the attached file

Download pdf
7 0
3 years ago
Calculate the molality of a solution prepared by dissolving 175 g of KNO3 in 750 g of water. (round to nearest hundreth)
Wittaler [7]
We will get the molality from this formula:
Molality = no.of moles of solute / Kg of solvent 

So first we need the no.of moles of KNO3 = the mass of KNO3 / molar mass of KNO3
no.of moles of KNO3 = 175 / 101.01 = 1.73 mol
By substitution in the molality formula:
∴ molality = 1.73 / (750/1000) = 2.3 Molal

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is a solute?
    7·1 answer
  • What are the three keys to keeping water clean? effective cleanup of oil and gasoline spills adding sediment to the water to red
    10·2 answers
  • A solution with a pH of 11 has a [H+] of...
    13·1 answer
  • Determine the molarity of a solution made by dissolving 11.7 g of NaNO3 in water where the final volume of the solution is 250.0
    6·2 answers
  • A gas occupies 5.31 liters at a pressure of 0.55 atm. Determine the volume at standard pressure.
    9·1 answer
  • I’m extremely stuck on this, please help
    7·1 answer
  • Helpppppo meeeeee plzzzzzzzzz
    7·1 answer
  • Density and Years: What do you know?Objectives: determine and compare density of pennies to assess composition. Procedure:1. Rea
    8·1 answer
  • What happens when the two atoms are fairly close?
    12·1 answer
  • Which observation most likely indicates that only a chemical change has taken place
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!