A substance that cannot be broken down into a simpler substance by ordinary chemical or physical means is a what?

My poem: Whose thee to say black or white heart of diamond or thee heart of gold Peace of soul or doubt of fool To thee I say thee dont know and to love thee self thee self different then others of though though doesnt change though wont change My

What is the longest mountain chain on earth?

What instruments can be used to measure volumes of liquids?

What is the charge of a proton? neutral negative positive

A sample of pure water is neutral because it contains

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

What is the ratio of Fe+3 ions to O2 - ions in a neutral compound? a. 1:2 b. 2:1 c. 2:3 d. 3:2

What is the specific heat capacity of a 17.5g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C?