An atom that has lost or gained electrons becomes an

What is the repeating unit in the polymer - ch2-ccl2-ch2-ccl2-ch2-ccl2 - ?

Which statement is true? Rocks do not contain any mineral matter. Most rocks are composed of a single mineral. Most rocks are made up of a mixture of minerals.

I have 4 moles of CO₂. How many molecules of CO₂ is this? Show your work. Scientific notation example: 6.02 x 10^23

Which would you expect to have higher enthalpy of fusion, N2 or I2? Explain your choice.

Why arent the jaguars and sloths growing and thriving?

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.