Matter is niether created nor destroyed in any chemical change. Is this a theory or a law?

Use C1V1 = C2V2 to calculate the molarity of a potassium bromide solution that is prepared by adding 125mL mL of water to 25mL mL of aqueous 2.00 M potassium bromide solution.

Why do new moons parallel the path of the sun?

How many grams of o2 are required to produce 358.5 grams of zno?

A 22.5-g sample of ice at - 10.0°C is mixed with 110.0 g water at 85.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities for H₂O (l) and H₂O (s) are 4.18 J/g･°C and 2.

professional and amateur athletes often tested for the use of illegal performance in Hensing drugs which process is used to separate these chemicals from a blood or urine sample

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3

Identify and briefly describe two ecosystems in your community that are beyond schoolyard

Is N2H2 a ionic compound?

What do Lewis dot structures show?