There are 4 significant figures
Explanation:
a colloid is a nonuniform mixture of a solute and a solvent in which the particles are permanently suspended.
solution is a uniform mixture of a solute and a solvent.
suspension is a nonuniform mixture of a solute and a solvent in which the particles are temporary suspended
paper clip is used to hold papers in position
Hydrogen + oxygen -> water
2H2 + O2 -> 2H2O (balanced)
2 moles of hydrogen gas will react with 1 mole of oxygen to produce 2 moles of water.
following that ratio, 0.734 mole of oxygen must need 0.734 × 2 moles of hydrogen to fully react.
answer is 1.468 moles of hydrogen.
NaCl + H2O = HCl + NaOH
FIRST write the equation and balance the equation THEN convert the volume of the gas to moles of the gas PV=nRT THEN according to the stoichiometry of the reaction one mol of gas is produced by one mol of salt. Convert the mol of gas to mol of salt FINALLY calculate the molar mass of the salt and convert the mol of salt to g of salt (m= nxMM)
