What state of matter is the scientist most likely observing

Newton's first law states that?

How can flood water affect the public drinking water supply?

An 8.5g ice cube is placed into 255g of water. Calculate the temperature change in the water upon the complete melting of the ice. Assume the all of the energy required to melt the ice comes from the water.

A proton is a particle inside the nucleus of an atom. It has a negative electric charge. all protons are identical true or false

Which statement best describes the difference between a physical change and a chemical change? A chemical change results in a new element being formed, and a physical change results in a new compound being formed.

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.