How much water is produced if 2.5 of h2

What is the relationship between the average kinetic energy of the particles of a substance and the temperature of that substance?

What element has 5 valence electrons and is in period 3.

Consider the reaction, X + 2Y → XY2 If X and Y are completely consumed in the reaction and we start with 10.0 mol of Y, then how many total moles of X and Y will be in the reaction?

With regard to pneumatic mechanical devices which afford protection against the formation of ice, which of the following statements is correct?

What is the acceleration of an object if it goes from a velocity of 25 m/s to rest in 5.0 s? a.-5 m/s2b. 5 m/s2c.-25 m/s2d. 25 m/s2

How many neutrons are present in an atom of iron-54? A) 26 B) 28 C) 30 D) 54

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. What is another name of the type of wave that transfers energy in this way?

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach