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
Sergeu [11.5K]
3 years ago
9

Why is helium trapped in the earth's crust? If it's its trapped in the earth's crust how does it get into the air that we breath

e?
Chemistry
1 answer:
lesya [120]3 years ago
7 0
 <span>A small proportion of helium in the crust is helium that was trapped in the Earth when the Earth formed and has not yet escaped. Most helium on Earth, however, forms as a result of alpha decay of uranium and thorium. The emitted alpha particles, once they grab a couple of stray electrons, become helium atoms and can accumulate in gas reservoirs along with things such as methane.</span>
You might be interested in
How many pennies are in $2,020.20?
Nata [24]

Answer:

202,020 pennies

Explanation:

The amount of pennies in 1 dollar is 100.

Basically, you just multiply the whole dollar amount (2020) by 100 and then add 20 to find the amount of pennies.

(2020)(100)+20= 202,000+20= 202,020 pennies.

5 0
3 years ago
Read 2 more answers
The mole ratio of two reactants in a chemical equation is determined by
Ipatiy [6.2K]

Answer:

A mole ratio is the ratio between the amounts in moles of any two compounds involved in a chemical reaction. ... The mole ratio may be determined by examining the coefficients in front of formulas in a balanced chemical equation. Also known as: The mole ratio is also called the mole-to-mole ratio.

7 0
3 years ago
What does a metal's position in an activity series indicate about the chemical properties of that particular metal?
Fed [463]
The closer to the top the metal is in the list, the more active the metal is and the stronger a reducing agent the metal is. When two different metals are involved in a redox reaction, the metal higher in the list will be oxidized and give up electrons that will reduce the cation of the less active metal.
3 0
3 years ago
What is the mass of 5 moles of Fe2(CO3)3 ?
sineoko [7]

Answer:

1218.585

Explanation:

Looking at the subscripts we know there are 2 atoms of Fe, 3 atoms of C, and 6 of O.

Take the molar mass of each atom (from the periodic table) and multiply by the # of atoms

Fe: 55.845×2= 111.69

C: 12.011×3= 36.033

O:15.999×6=95.994

Add the values together: 243.717 g/mol

That is 1 mole of the molecule. Multiply by 5 for the final answer.

243.717×5=1218.585

7 0
3 years ago
How are renewable fuels different from fossil fuels
cluponka [151]

Answer:

Renewable energy

Explanation:

on the other hand, typically emits less CO2 than fossil fuels. In fact, renewables like solar and wind power—apart from construction and maintenance—don't emit any CO2 at all. With renewable energy, you can breathe easier, stay cooler, and create a more comfortable world for generations to come.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the main factor that determines if a star will become a black hole
    11·1 answer
  • WILL MARK BRAINLIEST
    11·1 answer
  • Explain the result when aluminum is placed between the liquid and the wick
    9·1 answer
  • Using your senses to gather information is called
    9·1 answer
  • Which of these would represent the chemical formula for a momer of carbohydrates?
    5·2 answers
  • Electron electrical change is
    13·1 answer
  • You are asked to prepare a solution that is 2% by weight ethanol in water. Note that the molecular weight of ethanol is 46.07 g/
    13·1 answer
  • Air trapped in a cylinder fitted with a piston occupies 142.8 mL at 0.97 kPa pressure.
    15·1 answer
  • Please help I will give brainliest!
    7·1 answer
  • Given the balanced chemical equation for the decomposition for INO, and the rate of disappearance of INO, write the expressions
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!