Compared to the charge and mass of a proton an electron has......
A proton has approximately the same mass as..........
Answer:
B
Explanation:
because it is being cooled down
hoped this helps
Answer:
Oxygen supports combustion so a good method of testing for oxygen is to take a glowing splint and place it in a sample of gas, if it re-ignites the gas is oxygen. This is a simple but effective test for oxygen.
Explanation:
1) For example, sodium oxide (Na₂O).
One one molecule of sodium oxide has one sodium atome (Na) and two oxygen atoms (O).
The subscript after element shows the number of elements in a molecule.
2) Yes, it possible for two different compounds to be made from the exact same two elements.
This are isomers, same molecular formula, but different arrangements of atoms.
For example, n-butane (C₄H₁₀) and 2-methylpropane (C₄H₁₀).
3) There are large number of compounds in this world, around 40 millions.
Answer:
Partial pressure of oxygen 
atm
Partial pressure of Helium 
atm
Explanation:
We will first find the number of moles of each gas
The molar mass of oxygen is 
grams per mole
The molar mass of helium is 
grams per mole
The number of moles of oxygen in the solution
The number of moles of helium in the solution
The number of moles of oxygen in the solution
Total number of moles in the solution is equal to
Partial pressure of oxygen
atm
atm
Partial pressure of Helium
atm
atm
