If a substance is not able to be separated by physical means but is able to be separated by chemical means, it is a (n)

Solution

Heterogenous mixture

Element

Compund

What is the temperature of 13.3 moles of carbon dioxide that occupies 6 m3 and applies a pressure of 23 kPa to its container?

The temperature of a system rises by 45°C during a heating process. Express this rise in temperature in Kelvin. (Round the final answer to the nearest whole number.)

To squeeze gas into a smaller space

What is the total number of electrons shared in a double covalent bond? (1) 1 (3) 3 (2) 2 (4) 4

Light of a certain energy shines on a metal and causes electrons to be emitted. Based on the research of Albert Einstein, what change would most likely result in stopping the emission of electrons from this metal?

Which of the following is the correct scientific notation for 0.000451 g? 4.5 x 10-3 4.5 x 10-5 4.51 x 10-4 45.1 x 10-4

A phase change from a solid to a gas is called what

What is hydrocarbon?

Why did most scientists reject Wegner's theory for nearly a half century?

Define prediction and explain how it is used to formulate a hypothesis.