Which element, represented by X, reacts with fluorine to produce the compound XF2?

What makes an acid strong (Ph of 2)

Draw the structure of gly-ala-glu in the ionic form that predominates at ph 7

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

A gas occupies 200 mL at - 73.0°C. To have the same gas occupy 300 mL, should the temperature be increased or decreased? What is the new temperature in Kelvins? K

A rigid cylinder with a movable piston contains a 2.0-liter sample of neon gas at STP. What is the volume of this sample when it's temperature is increased to 30 degrees Celsius while its pressure is decreased to 90 kilopascal

Energy is required to produce a chemical change during (1) chromatography (2) electrolysis (3) boiling (4) melting

What is the definition of colorie

How does a solid differ from a liquid? b. how does a liquid differ from a gas? c. how is a liquid similar to a gas? d. what is a plasma?

Which pair of elements will form an ionic bond? N and O K and Br C and Cl Fe and Ni

What does mass is conserved in a chemical reaction mean