The Atom
A neutral particle with a positively charged nucleus surrounded by negatively charged electrons.
What is the atom?
Reducing the volume of a sample of gas to one half the original volume would have this effect on the pressure.
What is double? (or What is increase?)
These subatomic particles are involved when atoms form covalent bonds.
What are electrons?
A reaction in which energy is given released or heat is give off.
What is an exothermic reaction?
The pH of substances that taste sour
What less than seven?
In the nucleus of an atom, these two particles have nearly the same mass.
What are the proton and the neutron ?
The absolute temperature scale used when working with the gas laws.
What is Kelvin?
The type of bond formed when electrons are shared between 2 atoms.
What is covalent?
Conservation of matter tells us that this much mass is gained by the reactants in every chemical reaction
What it is zero?
This type of substance increases the concentration of H+ ions in a solution
What is an acid?
A substance made of only one type of atom
What an element?
At constant temperature, when the volume of an ideal gas is increased the pressure does this.
What is decrease?
The formula of the ionic compound formed by potassium and nitrogen.
What is K3N?
If you read the atomic mass (in grams) of an element and weigh out that much of the element, this is the number of atoms you would have.
What is 6.01x1023 (or What is Avogadro's number)(accept What is a mole)?
Two products of the reaction of an acid with a base
What is water and a salt?
A substance composed of two or more types of atoms joined buy chemical bonds.
What is a compound?
This is the standard temperature when referring to STP
What is 0°C? or What is 273K?
These are the substances resulting from a chemical reaction that are found the right side of a chemical equation
What are products?
This is the number of moles of oxygen required to completely react 3 moles of CH4
CH4+2O2 --> CO2+ 2H2O
What is 6?
A substance that conducts an electrical current when dissolved in water.
What is an electrolyte?
A stable homogeneous mixture the components of which do not settle out.
What is a solution?
This is the volume of one mole of an ideal gas at standard temperature and pressure
What is 22.4 liters?
The charged particle formed by the metal element when a metal and non element combine to make an ionic compound.
What is a cation?
2NO2(g) <--> N2O4(g)
This is the direction the above equilibrium will shift if the volume of the sealed reaction chamber is reduced.
What is a to the right?
The pH range of substances that turn red litmus paper blue
What is greater than seven?