A sample of helium gas is in a sealed, rigid container. What occurs as the temperature of the sample is increased?

Compounds of Sc3 + are not colored, but those of Ti3 + and V3 + are. Why? 1. Sc3 + is a stable cation. 2. Ti3 + and V3 + are not stable cations. 3. Sc3 + has no electrons in d orbitals. 4. Ti3 + and V3 + have d electrons present. 5.

How many O2 molecules are present in 0.470 g of oxygen gas? Can you guys tell me how answer this kind of problem ... I appreciate it.

a container holds 15 grams of phosphorus gas at a pressure of 2.0 ATM and a temperature of 20 degrees C what is the density of the gas

Which of the following is an example of a heterogeneous mixture? A. table salt B. iced tea C. clear hot tea D. clear salt water

Write a balanced chemical equation for dissolving calcium chloride in water.

How many moles is 362.8 g C5H12?

How many particles are in 3.0 miles of aluminum

What's the definition of miscible?

What happens to the mass of a substance during a physical change?

List three factors that can affect gas pressure