When sodium reacts with bromine to form the compound
NaBr, each sodium atom _____ one electron and forms a __________ charge.
What is loses and positive
100
The correct formula for tin (IV) oxide is
What is SnO2
100
A chemical reaction between an acid and base that forms a salt and water
What is a neutralization reaction?
100
a physical change from a solid to a liquid
What is melting?
200
in the nucleus
Where are the nucleons located?
200
The type of bond that is formed between calcium and sulfur
What is ionic?
200
In an aqueous solution of potassium chloride, the solute is
What is potassium chloride?
200
pH less than 7
What is an acid?
200
Chemical or physical: Alcohol evaporates.
What is a physical change?
300
The part of the helium atom that is positively charged
What is the nucleus?
300
We use prefixes to name this type of compound.
What is molecular or covalent?
300
In an aqueous solution of potassium chloride, the solvent is
What is water?
300
[OH-] = 10-5 is a pH of____.
What is 9?
300
Water vapor forms snowflakes...physical or chemical
What is a physical change?
400
subatomic particles that are negatively charged and surrounds the nucleus
What are electrons?
400
This type of bond involves the bonding of a sea of electrons with the positive cation of a metal, giving the atom its properties of ductility and malleability.
What is metallic?
400
The solubility of KClO3(s) in water increases as the ___________ increases.
What is temperature?
400
A chemical process where we can use a standard solution to find the concentration of another solution.
What is a titration?
400
Glucose (C6H12O6) and oxygen produce CO2 and
H2O...chemical or physical
What is a chemical change?
500
An atom that has the electron configuration of 1s22s22p63s2is in what group/family?
What are the alkaline earth metals?
500
The EXACT type of bond that holds an oxygen MOLECULE together (please include polarity of the molecule and the type of bond, remember that it is a diatomic).
What is a nonpolar double covalent bond.
500
What states that putting a stress on a system in equilibrium requires that the system try to relieve that stress.