Which property below is not a general property of metals:

A. Ductile C. Malleable

B. Poor conductor of heat D. High luster

If you are given only the amount, in moles, of an unidentified chemical quantity, you can calculate the number of: representative particles in the sample << I choose this one am i right?

J. C. wants to determine if there is a relationship between room color and sleep. Based on his research, J. C. makes an educated guess that people fall asleep more quickly in a room painted blue than in a room painted yellow.

The presence of Catholicism in Australia in the late 1700s could be BEST explained by the increasing presence of A) Irish convicts. B) Italian immigrants. C) American missionaries. D) British soldiers and politicians.

Based on reactivity, which of the following elements can replace aluminum (Al) in a compound during a single replacement reaction?

What does the Law of Conservation state?

What is called what a scientist personal opinion affects the way experimental results are reported? A. Bias B. Classifying C. Inductive reasoning D. Procedure

Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supercritical fluid can be tuned by varying temperature, pressure and cosolvent additives.

The relationship between pressure and temperature of a gas, when volume and moles of a gas are held constant, is: P*T = k. TRUE FALSE

The system is said to be in dynamic equilibrium when: Select one: a. there is no longer any net change in the concentrations of products or reactants. b. the forward and reverse reactions come to a halt. c. None of these d.

You have a 1 L container of a gas at 20 C and 1 atm. Without opening the container, how could you tell whether the gas is chlorine or fluorine? a. measure the mass of the gas b. measure the speed of the gas molecules c.