1.15 g of a metallic element reacts with 300cm3 of oxygen at 298K and 1 atm pressure, to form an oxide which contains O2 - ions.

What could be the identity of the metal?

A calcium

B magnesium

C potassium

D sodium

What is the current model of our solar system?

What is the percentage composition of NaHCO3

In a game of soccer, Jenny kicks the ball straight down the field. Her teammate Craig is waiting close by. He does not allow the ball to stop, but kicks the ball straight down the field as well.

A group of students investigated the chemical reaction of a mixture of sodium chloride and silver nitrate. Which tools should be used when determining if the chemical reaction obeys the law of conservation of mass? 8.

How is the energy released by an earthquake related to its moment magnitude?

All of the following can be recycled except clothing aluminum cans compact fluorescent bulbs plastic drink bottles

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.0 L of water upon warming from 25 ∘C to 50 ∘C.

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure.

When you light a fire place what energy transformation takes place

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB