Does the combination of element or compound make mixture infdifinately​

Calculate the temperature rise when 0.2g of propane is used to heat 400cm cubed of water.

Aracehorse with a kinetic energy of 78,750 j is clocked at 17 m/s when it crosses the finish line. what is the horse's mass?

Adna specialist is determining the probability of a random match using codis str markers vwhat amount of str markers dna specialist is determining the probability of a random match using would give the best probability of a match? a. 2 b. 5 c. 10 d. 15