In a laboratory, and you decide to take 35 ml of a 3.0M Na2SO4 solution and dilute it to a 750 solution, what is the new concentration?

One does not belong why? ice, gold ,wood ,diamond and table salt

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.