In a crystal of salt there are electrons and positive ions. How does the net charge of the electrons compare with the net charge of the ions?

A longitudinal wave lacks which properties?

A vertical spring with a spring constant value of 4500 N/m is compressed 60 cm. A 5.5 kg pumpkin is placed on the end of the spring, and the spring is released. To the nearest whole number, the pumpkin will rise how many meters.

During a vaporization a substance changes from what to what

in a Lewis structure what does a double line represent? A. A single covalent bond B. Two valence electrons C. Two atoms D. A double covalent bond

What was the average number of tropical storms per season for the time period 1995-2004?

What sample of matter is a single substance

What is a hydraulic machine and what is its purpose? Explain how a simple hydraulic machine performs work.

Is the muzzle velocity a scalar or vector quantity?

How many day does it take the sun to came out?

Using the word "more" to mean "I want another cookie" is an example of a (n) :