Chemistry of Life (No Macromolecules)

What is the smallest unit of matter that cannot be broken down by chemical means?

• Atom
• Element
• Ion
• Isotope

What are the four elements that all life is made up of?

• Hydrogen, Oxygen, Nitrogen and Carbon
• Helium, Oxygen, Neon and Carbon
• Hydrogen, Titanium, Carbon, Nitrogen
• Oxygen, Chlorine, Iron, Nitrogen

Tags

NGSS.HS-LS1-6

Which of these is the smallest unit of living things?

• cells
• atoms 
• molecules
• compounds

Tags

NGSS.MS-LS1-1

What 3 subatomic particles make up atoms?

• Isotopes, protons, covalent bonds
• quarks, quirks, compounds
• protons, neutrons, isotopes
• protons, neutrons, electrons

Tags

NGSS.MS-PS1-1

The isotopes of an element all have the same number of ________.

• electrons

• neutrons

• protons

A chemical ________ is a pure substance made entirely of 1 type of atom.

• element
• compound
• mixture
• blend

Tags

NGSS.HS-PS1-1

The nucleus of an atom usually contains __________.

• protons and neutrons

• electrons

• electrons and protons

• isotopes

The main types of chemical bonds are __________.

• ionic and subliminal

• covalent and hydrogenated

• ionic and covalent

• ionic and flourite

The electrons involved in chemical bonds are called ___________ electrons.

• valence
• ionic
• Van Der Waals
• covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

_{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