Methane's formula is CH4 I don't get the question but if those are the quantities of 1 of those metals, that means that you don't have enough grams of carbon. You will need 5g x 4 = 20grams of carbon.
Hope that's what you were looking for.
Answer:
B.
Explanation:
This is physical change as the popcorn has expanded in size.
Answer:
2 half lives.
Explanation:
Suppose there are 100g of parent isotope at the start.
After 1 half-life there will be 50g of parent and 50g of daughter isotope.
After another half life there is 25 g of parent and 75g of daughter isotope.
Answer:
C
Explanation:
It is formed as a result of a reaction between two non-metals
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles C3H8, or 44.09562 grams
