Which statement is true about metals and metalloids? a. all metals and metalloids have luster. b. metals are good conductors and metalloids are bad conductors c. metals are nonmalleable and metalloids are malleable

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.