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
MrMuchimi
3 years ago
13

How many hydrogen molecules are in h2

Chemistry
1 answer:
butalik [34]3 years ago
7 0

Answer:

two

Explanation:

The symbol “H” means the hydrogen atom; “2H” means two hydrogen atoms that do not make a molecule: they are just two separate (individual) atoms; “H2” means the hydrogen molecule (two hydrogen atoms that came together, sharing their electrons); “2H2” means two separate hydrogen molecules.

You might be interested in
What is the volume, in liters, of 0.500 mol of c3h3 gas at stp?
jarptica [38.1K]
At STP conditions the volume of  1 mol of any ideal gas will be 22.4L

0.500 mol C3H3 x 22.4L / 1 mol = 11.2 L
8 0
3 years ago
1) This rock is made out of cooled magma.
denis-greek [22]

1. a) Igneous.

2. c) Metamorphic.

3. b) It broke into sediment and then compacted.

4. d) All types of rocks.

5. a) Wind and rain break down the rock into small pieces.

6. a) Yes, but it should be subtuced first.

7. c) Earth's interior.

8. c) Water.

9. b) Magma is molten rock within the Earth; lava is molten rock on the Earth's surface.

5 0
3 years ago
Why do hotspots appear to move in relation to tectonic plates?
Vikentia [17]

Answer:The heat that fuels the hot spot comes from very deep in the planet. This heat causes the mantle in that region to melt. The molten magma rises up and breaks through the crust to form a volcano. While the hot spot stays in one place, rooted to its deep source of heat, the tectonic plate is slowly moving above it.

Explanation:

3 0
3 years ago
Read 2 more answers
A multivitamin tablet contains 40 milligrams of potassium. how many moles of potassium does each tablet contain?
katrin2010 [14]
Conversion of mole to grams
k in mole = 1 mole/ atomic mass
K in mole =1/ 39.0983 g/mole
                = 0.255765 g/mole
converting 40 grams of K
 K 40 grams x [ 1 mole/ 39.0983 grams] = 1.0230623 mole
There are 1.0230623 moles of K in 40 K of Potassium

7 0
3 years ago
Read 2 more answers
There are 4.184___<br> in a Joule of energy
Alinara [238K]

Answer: calories?

Explanation: but isn’t it 1 calorie = 4.184 joules of energy

4 0
3 years ago
Other questions:
  • Conservation of ____________ energy is only valid when it occurs in a situation with no frictional force.
    9·1 answer
  • How many grams of CaH2CaH2 are needed to generate 147 LL of H2H2 gas if the pressure of H2H2 is 823 torrtorr at 21 ∘C∘C? Express
    12·1 answer
  • Which of the following properties of silver does not explain why this metal is often used in jewelry?
    12·1 answer
  • Why is atmospheric pressure much lower on the top of a mountain than it is as sea level?
    5·2 answers
  • How does the structure of covalent bond affect the structure of covalent compounds
    6·1 answer
  • What are the five characteristics of a mineral
    10·1 answer
  • A molecule with a single covalent bond is _____. co cl2 co2 n2
    7·2 answers
  • Grade7science
    10·1 answer
  • Step 6: Measure Solubility in Boiling Water
    8·2 answers
  • The rate constant for a first-order reaction is 2.4 x 10-4 L/(mol's) at 600 K and 6.2 x 10-4L/(mol · s) at 900 K.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!