Biology EOC Review Chemistry of Life

In a controlled experiment, what is the term for the variable that is manipulated by the scientist?

• Constant

• Independent variable

• Dependent variable

• Control group

Tags

NGSS.MS-PS2-2

Put the following steps of the scientific method in order from first to last.

• Hypothesis

• Observation

• Controlled experiment

• Data analysis

• Data collection

Match the subatomic particle with its charge.

• Negative charge

• Neutron

• Positive charge

• Electron

• No charge

• Proton

Which subatomic particle is involved with forming chemical bonds?

• Protons

• Neutrons

• Electrons

• Muons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom that has more or less neutrons than the number of protons is known as a ____________

• Isotope

• Ion

• Isomer

• Molecule

Tags

NGSS.HS-PS1-8

Which of the following would NOT be true of the sodium atom after losing an electron?

• Sodium would now have a negative charge

• Sodium would now have a positive charge

• The sodium atom would now be called an ion

• The sodium atom could form an ionic bond with Cl-

What type of bond is shown in the image between a carbon atom and four hydrogen atoms?

• Ionic bond

• Covalent bond

• Hydrogen bond

Tags

NGSS.HS-PS1-1

Which of the following is NOT true of carbon?

• Carbon is found in all organic molecules

• Carbon has four valence electrons

• Carbon can form chains, branched chains and rings

• Carbon forms ionic bonds with sodium and chlorine

Tags

NGSS.HS-LS1-6

Which of the following describes the properties of a water molecule?

• Water is made up of two hydrogens and one oxygen

• The bond between the oxygen and hydrogens are polar covalent bonds

• Water molecules are attracted to each other

• All of these are correct

Tags

NGSS.HS-ESS2-5

What type of bond is indicated by the number 1?

• Covalent bond

• Ionic bond

• Hydrogen bond