Atoms, elements, compounds, and chemical bonds
water
chemical reactions
acids, bases and buffers
The chemistry of life
100

Bond between O and Mg

Ionic bond

100

Water is polar or non polar?

polar

100

The chemical reaction: CH₄ + 2 O₂ → CO₂ + 2 H₂O

combustion reaction

100

What is the pH ranges for acids, bases, and neutral. 

acid-1-6.9

neutral 7

base 7.1-14

100

A biochemical reaction?

respiration

200

When an atom loses 1 electron, what is the resulting charge?

+1

200

What is Cohesion?

Water molecules bonding to other water molecules.

200

The chemical reaction: Pb + O₂ → PbO₂ is a:

synthesis reaction

200

When hydrogen ions are released into a solution, it creates an ___________solution,

acidic

200

Which of the following correctly distinguishes between inorganic and organic molecules?

Organic molecules contain carbon, while inorganic molecules do not.

300

How many valence electrons does carbon have?

4

300

What property of water allows it to stick to surfaces and move against gravity?

capillary action

300

what is a coefficient and subscript?

coefficient-placed in front and tells how many of each atoms or molecules.

subscript-small number on the right of the element, says how many atoms of each element. 

300
What is the purpose of a pH indicator?
To test for acidity and basicity. 
300

What is the role of ATP in cells?

Provides energy for cellular processes. 

400

H2 2.1-2.1=0 is what kind of bond

Covalent

400

What is the difference between hydrophobic and hydrophilic?

Hydrophobic, hates water. Hydrophilic, loves water.
400

What does an enzyme do?

proteins that help speed up metabolism, or the chemical reactions in our bodies

400

what is the pH of stomach acid?

2

400

Which of the following is true about the role of amino acids in cells?

Are the main building blocks of life. 

500

What is a compound?

Composed of two or more separate elements;

500

A slight amount of pressure exerted at the surface of water is known as?

surface tension

500
  1. The chemical reaction: Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2 H₂O is a:

double displacement

500
What does a buffer do?

resists changes in pH.

500

Which of the following is true about the role of nucleic acids in cells?

Store genetic information.