Students investigating how gravity affects balls of different sizes, is this a good experiment?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol

Distilled water is a completely neutral solution. what is its ph? a. 1 b. 7 c. 14 d. 0