Which of the following describes the conversation of chemical energy to heat energy?

a: a chair sitting still

b: a leaf absorbing sunlight

c: a battery powering a cell phone

d: a rock hitting the ground

What term describes the state of matter in which the attractive forces between particles are the greatest?

Which element is heavier lead or flourine

The standard free energy of activation of a reaction A is Reaction B is ten million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol-1 (2.39 kcal mol-1) more stable than the reactants.

Husbdjsbc j jdngn df gjj

Write a scientific explanation explaining how the earth recycles plate materials?

Discuss carbohydrate chemistry

A radioactive nuclide that is used for radiation therapy for cancer has 33 neutrons and a mass number of 60. Which is the correct symbol for this nuclide? Superscript 27 subscript 60 upper C o. Superscript 33 subscript 60 upper C o.

Ions are atoms that have an electrical charge because they have gained electrons or lost electrons. If a neutral atom GAINS an electron, what is it's charge? Positive Negative Neutral

Can the groups of the periodic table be numbered in two different ways

Zn (s), Zn (NO3) 2 (0.30 M) || Ag (s), AgNO3 (0.010 M) 1. Draw the schematic of the electrochemical cell that you created including all the components (metals, solutions, salt bridges, voltmeters, etc.) in this portion of the experiment.