Sample A consists of calcium pellets. sample B consists of powdered calcium. which properties are the same for both samples A and B

What is the molarity of a solution that contains 4.53 moles of LiNo3 in 2.85 liters of solution?

Given the law of conservation of energy, what best explains why heat may be absorbed during a chemical reaction? A. The energy of the reactants is less than the energy of the products. B.

Discuss how scientists use data on waves to monitor the environment 1. 2. 3. 4. 5. 6. 7. 8. 9.

with a suitable reaction equation, show the liberation of hydrogen gas in a reaction between silver metal and hydrochloric acid

How much water would be formed if 4.8g of H reacted with 38.4g of O?

Describe What kind of ions do metals form? What kind of ions do nonmetals form?

A car is driven through streets treated with salt and then parked in a warm garage. a) How will the rate of rusting compare with a car that has not been driven in the streets treated with salt but left parked outside?

Amalgam is an alloy that contains mercury and other metals. Which of these atoms would most likely form metallic bonds with mercury? Check all that apply. bromine copper hydrogen iodine silver tin

Which fossil fuel is the most widely consumed in the United States? A. petroleum B. natural gas C. peat D. coal

Why is the use of natural gas as a full becoming more common