What is an definition of An Mutualism.

Compute the mass of caso4 that can be prepared by the reaction of 3.2900g of h2so4 with 3.1660g of caco3

A reproducible measurement is an accurate one. A. True B. False

Which of the following are correct statements? Check all that apply. A. Potassium (K) and magnesium (Mg) are not in the same periodic table period. B. Potassium (K) and magnesium (Mg) are both nonmetals. C.

Which element has properties most similar to Bromine? A) F B) Kr C) S D) Se

Why do you think lab safety is important?

At the end of the reaction you washed the chemicals into a beaker using water. Why was it OK to use water to do this if Grignard reagents are very reactive towards water?

What happens when the electron moves from the first energy level to the second energy level? Energy is absorbed, and an emission line is produced. Energy is released, and an emission line is produced. Energy is absorbed by the atom.

Calculate how many mg is lethal to resident Arnold who weighs 45 kg and resident Harold who weighs 96 kg. The LD50 of lead is 450 mg/kg

The specific heat of aluminum is 0.125 cal/g °C. If 12.5 grams of aluminum were heated from 20.0 °C to 100.0 °C, calories of heat energy would be absorbed by the aluminum.

What type of radioactive decay results in uranium-238 becoming thorium-234?