It would be CaF2 because you will need to balance then so since F is -1 it'll need another one to balance with Ca +2
Answer: The mass percent of carbon in acetylene is 92.31 %.
Explanation:
In 
, there are 2 carbon atoms and 2 hydrogen atoms.
To calculate the mass percent of element in a given compound, we use the formula:
Mass of carbon = 
Mass of acetylene = 
Putting values in above equation, we get:-
Hence, the mass percent of carbon in acetylene is 92.31 %.
So you see the triangle with the letters, look at what you're given. you have mass and volume solving for density. So you take the mass and divide it by the volume. 15.2/15.5 which your answer is 0.98 or 1.0 that's your density.
Answer:
The ones with 8 protons
Explanation:
Since there are two of them with 8 protons, we can assume they are the same element. The first 8 proton element has 10 neutrons while the second has 11. This makes them isotopes of one another
<span> electricity and magnetism
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