Chemistry

Question 0

What is an ion?

Answer 0

It is an atom that is either positively or negatively charged because there is an imbalance of either protons or electrons.

Question 1

Proton:_________
Neutron:________
Electron:_______

Answer 1

Positively charged
Uncharged
Negatively charged

Question 2

When there are more protons then electrons, the atoms becomes what?

Answer 2

Cation and is positively charged.

Question 3

What is an atom called when the electrons exceed the amount of protons in an atom?

Answer 3

Anion and is negatively charged.

Question 4

What is a chemical bond?

Answer 4

Forces that hold atoms of a molecule or compound together.

Question 5

________ bond: forms when a hydrogen atom with a partial positive charge attracts the partial negative charge of neighbouring electronegative atoms.
________ bond: forms when two or more atoms share electrons rather than gaining or losing them.
________ bond: the force of attraction that holds together ions with opposite charges.

Answer 5

1) hydrogen bond
2) covalent bond
3) ionic bond

Question 6

What chemical bond is found most commonly found in the human body?

Answer 6

Covalent bond

Question 7

What is a catalyst and is it a ion/molecule/compound?

Answer 7

Speeds up the chemical reaction by lowering the activation energy needed for the reaction to occur. It’s a compound.

Question 8

Difference between inorganic and organic compounds?

Answer 8

Inorganic: do not contain carbon and are simply structured.
Organic: contain carbon.

Question 9

What is dissociation?

Answer 9

The separation of acids,bases and salts in ions in a solution.

Question 10

What is an enzyme?

Answer 10

Proteins

Question 11

What is DNA and RNA? And how many strands for each?

Answer 11

Nucleic acids
DNA: two strands
RNA:one strand