Chemistry of Life

_{Used to indicate acidity or alkalinity of a substance. Ranges from 0-14. Each unit has a 10 times difference in acidity or alkalinity}

• acid scale
• base scale
• pH scale
• ion scale

_{Which is NOT one of the four elements that make up over 90% of the human body}

• Carbon
• Nitrogen
• Chlorine 
• Oxygen

Tags

NGSS.HS-LS1-6

_{Who am I? I'm a polymer composed of amino acids that are linked by peptide bonds. Amino acid bonds determine my folds.} 

• Lipid
• Carbohydrate
• Protein
• Sugar

Tags

NGSS.HS-LS1-1

What makes carbon so important to life?

• bonding properties

• its place on the Periodic Table

• it is a reactant in all chemical reactions

• it is an enzyme

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-6

NGSS.HS-LS2-5

What makes a chemical reaction?

• matter is conserved

• breaking and forming of chemical bonds

• when products form reactants

• when you do a lab

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Exothermic reactions

• absorb more energy than they release

• are cold

• do not use bond energy for activation

• release more energy than they absorb

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following solutions has the highest Hydrogen ion concentration?

• a solution with a pH of 1

• a solution with a pH of 4

• a solution with a pH of 7

• a solution with a pH of 10

A catalyzed reaction

• increases the products made

• uses less activation energy to get started

• has a slower reaction rate

• uses more reactants throughout the reaction

Tags

NGSS.HS-PS1-5

Enzymes act on

• products

• proteins

• amino acids

• substrates

What are the reactants in this chemical equation?

• CH₄ and 2O₂

• carbon and oxygen

• CO₂ and 2 H₂O

• water and methane

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5