How many moles of Mg are present in 62.23 grams of Mg? (Show your calculations for full credit.)

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled