How many Na + ions are found in 0.5 mol of Na2O?

A gas that has a volume of 28.0 liters, a temperature of 45.0 °C, and an unknown pressure has its volume increased to 34.0 liters and its temperature decreased to 35.0 °C. If I measure the pressure after the change to be 2.

An island arc is found along the?

How are particles in crystalline soilds arranged?

What happens to ice as it melts? A. The average kinetic energy of the water molecules decreases. B. The released energy increases the intermolecular forces. C. The absorbed energy breaks apart intermolecular forces. D.

Assuming constant pressure and temperature, how many moles of gas have been added to the initial 3 moles of gas when the volume increases from 2.0 to 4.0 liters? a. 1.5 moles b. 2 moles c. 3 moles d. 6 moles

If you pump air into cycle tyre a slight warming effect is noticed at valve stem why

Butter is melted in a pan. Which of the following is true about the change? A. It is a physical change that releases energy B. It is a chemical change that absorbs energy C. It is a physiscal change that absorbs energy D.

Describe how secondary consumer is dependent on the sun for its energy

What % of the ideal soil is air?

Calculate the number of formula units in 4.55 grams of lithium carbonate, Li2CO3