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Intro to Chemistry (in Bio)

Last updated about 1 year ago
34 questions
1

What is the "stuff" that takes up space and makes up things?

1

What is the amount of this stuff (measured in grams)?

1

Which state of this stuff has the atoms moving the fastest and most spread out?

2

Using the scribble tool, draw in arrows to connect the words into a concept map (a flow chart) from smallest --> to --> largest.

1

COMPOUND molecules are made up of ______ elements, unlike DIATOMIC molecules.

3
Label this ATOM:
(Drag and Drop)
Other Answer Choices:
neutron
energy level
electron cloud
electron
proton
nucleus
1

How do you remember the ELEMENTS of life?

1

How to read a box in the periodic table of elements:

Draggable itemCorresponding Item
atomic mass number
= atomic number
# of electrons
= # of protons
# of protons
= mass number - atomic number
atomic number
is the small number in the element box (8 for Oxygen)
# of neutrons
is the big number in the element box (16 for Oxygen)
This is a Bohr Model of OXYGEN as an EXAMPLE:
This is the MAXIMUM # of electrons in each energy level from the inside to outer:
3

Using the text tool (__p, __n) and the circle tool (for electrons), complete a Bohr model of Carbon.

Use the images to help; I did one for Oxygen for you.

Hint: fill in your electrons from the inner orbit to the outer.

1

CIRCLE the TWO covalent SHARED BONDS between H and O in a water molecule. Hint: each bond should have 2e-'s

3

DRAW AN ARROW showing the one IONIC (give and take) BOND between Na and Cl in a salt molecule. Hint: who is giving to who? ..

1

"LEO" stands for?
"GER" stands for?

1

When metal rusts and oxidizes, what is happening to its electrons?

1

Initial temperature of steel wool?

1

Final temperature of steel wool?

1

OBSERVATIONS:

2

Did this reaction ABSORB or RELEASE heat energy? How do you know?

1

Therefore, the steel wool and vinegar reaction would be considered _______.

1

How much water did you add to the beaker?

1

How much mix did you measure?

1

Calculate the CONCENTRATION now. (Hint: divide mass/volume)

1

Did your personal taste test deem your concentration to be "good"?

1

SOLUTE:

1

SOLVENT:

1

Observations:

1

CATALYST:

1

The catalyst helps ____ the reaction.

1

I know a chemical reaction occurred because:

1

A biological catalyst in your body is called an _______.

6

1. Add the labels "Acid", "Neutral", and "Base/Alkaline" to the correct spots on your pH scale.

2. Add your tested substances at the correct spot on the pH scale after you figure out their pH's.

1

What does pH measure?

3

Acidic solutions have (3):

1
In your body's Blood __________ _____ System, if your blood becomes too BASIC, your body breaks carbonic acid to NEUTRALIZE it.
1

CONCLUSION: Wait, based on this lab, what does CHEMISTRY have to do with BIOLOGY???