What do we call elements that always travel in pairs?

Which of the answer choices is correctly defined as a state of matter with a defined volume and shape? plasma liquid gas solid

21.7 mL of gas at 98.8 kPa is allowed to expand at constant temperature into a 52.7 mL container. What is the new pressure of the gas? kPa.

What's the density of water

The total number of secondary alcohols corresponding to the formula C6H14O, counting stereoisomers separately is:

Which element in period 4 would have chemical properties similar to magnesium? 7. which metalloids would have chemical properties similar to bromine? 8. which nonmetal would have chemical properties similar to tin? 9.

When does water move between the surface of earth and the atmosphere

Why does water vapor exist naturally in the atmosphere

How is the volume of a gas related to its concentration of particles? As the volume of a contained gas expands, its pressure concentration of particles will increase.

How does the density of one penny compare with the density of two pennies

How many valence electrons does beryllium have