The correct answer is B. 50 feet divided by 3.28084 feet (1 meter).
Answer: 40cm^3
Explanation:
Since the The air today is approximately one-fifth oxygen, the approximate volume of oxygen in 200cm3 of air would be:
= 1/5 × 200
= 40cm
The answer is 40cm^3
Answer:
B&C
Explanation:
Atoms combine in whole number ratios to form compounds.
and
Atoms cannot be created or destroyed during a chemical reaction.
i think it is carbon monoxide
Pressure Plates there is different types of plates also