In terms of substances explain why evaporation of water is a physical change and not a chemical change

Which of the following statements about the movement of Earth's atmosphere is correct? Select one: a. A column of warm, less dense air produces high pressure at the Earth's surface. b.

How many significant digits are measurement 0.00210 mg?

What is two types of organelles

A train travels 68 kilometers in 4 hours, and then 91 kilometers in 2 hours. What is its average speed?

5. The number of bonds an atom can form is represented in an electron dot diagram by A. pairs of dots B. unpaired dots C. total number of dots

Why do you want the water to drip off the metal before it is placed in the calorimeter? (A) The mass and the initial temperature of the calorimeter water will be incorrect and affect the calculation of the specific heat capacity of the metal.

a block of wood is found to have dimensions of 6.21 cm x 4.63 cm x 5.34 cm. Calculate the volume of the block

In which sentence is the word accept used correctly? a. If you offer me a box of dark chocolates, I will gladly accept it. b. Javier loves chocolates, accept for the ones filled with coconut. c.

The formula to create a directed vector is a) Source - Destination b) Source + Destination c) Destination - Source d) Destination + Source

A ball is rolling straight across the floor until Bradley kicks it. 1. Newton's first laws 2. Newton's second laws 3. Newton's third laws