The axle and Wheel are 2 circles, and they rotate together. Force is usually transferred from the axle to the wheel. The mechanical advantage of the wheel and axle is essentially the ratio of the radius of the wheel over the radius of the axle
MA =Radius of wheel
Radius of Axle
<u>1 mole of oxygen.</u>
Answer:
solution given:
according to the above reaction,1 mole of oxygen is required to react with 2 moles of sodium to form sodium peroxide.
Explanation:
Answer:
The periodic table
Explanation:
The periodic table can show the atomic number and atomic mass of any atoms easily. To convert grams of water to moles of water, you need to know the atoms that made up water molecules then find out their molecular mass. Water is made of two hydrogens and one oxygen atoms. Then you can find the atomic mass of hydrogens is 1 while oxygen is 16. The molecular mass of water will be 2*1 + 16= 18g/mol.