BIOS 251 Anatomy Physiology

SUBSCRIBE

BIOS 251 Anatomy & Physiology

• Which of the following would you classify as a molecule? CuFe S2F

–Answer S2F

• Which of these subatomic particles is found outside of the nucleus of an atom?

Nucleons Protons Neutrons Electrons –Answer electrons

• Which of the following would you classify as a cation? OH-K+S2FeO

–Answer K+

• If we cut a chunk of iron into smaller pieces, is it still iron no matter how small the pieces

are?–Answer Yes, an atom of iron would be iron no matter how small the pieces became.

• A molecule with 14 total electrons and 12 total protons has a charge of?

–Answer -2

• An atom with 55 protons and 54 electrons has a charge of?

–Answer +1

• An atom with 12 protons and 10 electrons has a charge of?

–Answer +2

• A molecule with 76 electrons and 73 protons has a charge of?

–Answer

-3 1 / 3

SUBSCRIBE

• Which of the following would be a molecule? Li Cu O Mg C

–Answer CuO

• An atom has a mass number of 48 and 22 neutrons. How many protons would this atom

have?–Answer 26

• Select all the terms we could use to describe an Al atom with a charge of

+3. Select all that apply. Anion Ion Molecule Cation –Answer ion, cation

• If I had an ion with 26 protons, and 28 neutrons, and 27 electrons, what would be the

charge of this ion?–Answer -1

• Which of the following compounds would you expect to be an electrolyte?

–Answer KCl

• An ion has 26 protons, 28 neutrons, and 24 electrons. Which element is this ion?

–Answer iron Fe

• Which of the following terms would you use to describe Mg2+. Select all that apply.

Ion Molecule Subatomic particle Element –Answer ion, element

• What subatomic particle is transferred or shared to make chemical bonds? 2 / 3

SUBSCRIBE

–Answer electrons

• What is the name of the bonding type that involves the sharing of elec- trons?

–Answer covalent bonding

• This type of intermolecular bond is key to how water molecules interreact with each other

–Answer

–Answer hydrogen bonding

• Hydrogen bonds are a type of

–Answer

–Answer intermolecular bond

• Which of the following solutions would you consider acidic? pH 10

pH 4 pH 7 pH 8 –Answer pH 4

• If you were to dissolve 2.5 grams of NaCl in 150 g of water, I would call the NaCl the

–Answer

–Answer solute

• I mix two liquids together and shake them up. I see that I have microscopic droplets of one

liquid suspended in the other. I would call this –Answer emulsion

• Let us think back to our original cup of tea. We remove the teabag from the cup of tea
• / 3