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HS-PS1-2 A water (H2O) molecule is made up of ___ atoms.
HS-ESS2-5 The cohesion of water is described as........
the amount of energy to convert 1g or a substance from a liquid to a gas.
resisting temperature change, both for heating and cooling.
an attraction between particles of the same substance.
an attraction between two different substances.
Which of the following is an example of a molecule?
HS-ESS2-5 In a lab, David sees a coin floating on water. All of the following properties are responsible for this except?
HS-ESS2-5 Which of the following explains why Coke is an acid while lye is a base?
Coke has a pH of 3 while Lye has a pH of 14
Coke is sweet and lye is salty
Coke has a pH of 14 while Lye has a pH of 3
Coke is liquid but lye is solid
HS-ESS2-5 A student mixes strawberry koolaid and water. A pH meter detects a pH of 5.4. What must be true about the solution?
There are no ions in the solution
There are more hydrogen ions H+
There are more hydroxide ions OH-
There is the same amount of H+ and OH-
HS-LS1-6 What makes a molecule polar?
Even balance of protons and neutrons
Uneven balance of protons and neutrons
Equal sharing of electrons
Unequal sharing of electrons
HS-LS1-6 Which of the following is a monomer for lipids?
HS-LS1-6 Which of the following macromolecules is responsible for information storage?
HS-LS1-6 Which of the following characteristics allows carbon to form many different complex molecular structures?
Has high electronegativity
Can form four bonds
Has many isotopes
Which of the following could be a carbohydrate molecule?
In the video shown, which of the following properties of water is the most responsible for rising in the glass?
High Specific Heat
A substance in the lab yielded a positive test result when biuret was added, but was negative when iodine was added. Which of the following was likely the unknown substance?
Reorder the following substances in order from smallest to largest.
What makes water unique? How would you distinguish it from other similar compounds?