What type of electromagnetic wave is used in security pens?

a. X-rays

b. Visible light

c. Microwaves

d. Ultraviolet radiation

What is the medium of sound? water solids Ogases air, liquids, or solids

What is an ionic bond?

How can we measure the density of different wooden objects

Conclusions drawn from personal beliefs are: a. deductive b. subjective c. objective d. inductive

A rigid cylinder with a movable piston contains a sample of gas. At 300. K, this sample has a pressure of 240. kilopascals and a volume of 70.0 milliliters. What is the volume of this sample when the temperature is changed to 150.

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint

Which has more atoms, 2moles of carbon or 2 moles of aluminum