If 2 electrons were removed from magnesium, what would the charge on magnesium be?

If the first reaction used 0.5 g of copper then how many grams of copper will be produced in the last reaction?

How are hydrocarbons similar? How are they different?

Convert 567,000,000 into scientific notation

What happens as the activation energy increases? C 0 The pressure of the system decreases. The kinetic energy of colding molecules changes. The reactant surface area decreases. The reaction beans to slow down 88

doctor has ordered that a patient be given 20 g of glucose, which is available in a concentration of 70.00 g glucose/1000.0 mL of solution. What volume of solution should be given to the patient?

A 1.3 g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 86.9 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? A random amount of light was released. A fixed amount of energy was absorbed. A fixed amount of energy was released.

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 57.1 grams of sodium are added to water?