The half-life of osmium-183 is 6 hours. How much time would it take for 24 grams of it to

reduce to 0.75 grams?

What are the characteristics of a gas? no definite shape but a definite volume a definite volume and definite shape a definite shape but no definite volume no definite shape or definite volume

Define in your own words: Solute, Solvent and Solution.

How did the invention of the spectroscope in 1859 change the science of chemistry

The elements in groups 3-12 are known as: A. The transition elements. B. The halogens. C. The noble gases. D. The alkali earth metals.

Which statements describe the principles of the big bang theory? Check all that apply. The universe is continuing to expand. A massive explosion caused matter and energy to expand and form the universe.

Ion Formed of Cl, Te

What does the law of conservation of energy state about energy in a closed system? Energy cannot be created or destroyed. Energy can be created but not destroyed. O Energy can be destroyed but not created. O Energy can be either troyed or created.

A measure of the internal energy that has been absorbed or transferred from one body to another is

What is the specific heat of a substance? O A. The energy required to break molecular bonds B. The increase in temperature caused by heating C. The heat required to evaporate a substance D. The amount of heat a substance can hold C

Which of the following animal niches will be filled as in ecosystem Begins the stage of ecological succession