5.1 The Bohr model of the atom is sometimes called the “planetary model” of the atom. Why?

Like the planets circle the sun the electrons circle the nucleus

5.2 What determines all of the atom’s properties? What determines the vast majority of an atom’s properties?

The electrons and protons, and neutrons determine the atoms properties

5.5 The element carbon is composed of all atoms that have 6 protons. One of the atoms in the element carbon is carbon-13. How many protons, neutrons, and electrons are in a carbon-13 atom?

It has 6 protons, 6 electrons, and 7 neutrons.

5.6 Identify each of the following as either an atom, element, or molecule:a. NH3b. Pc. Carbon-14d. Se. P4

a. NH3------molecule b. P----------element c. Carbon-14---atomd. S-----------element e. P4----------molecule

5.7 A student is told to study the chemicals nitrogen monoxide (NO) and nitrogen dioxide (NO2) and determine that there are no differences. Is that right or wrong.

He is wrong because unlike nitrogen monoxide (NO), nitrogen dioxide is (NO2) has two oxygen atoms.

5.8 Name each element and the number of atoms of that element in one molecule of acetic acid (C2H4O2), which is the active ingredient of vinegar?

There are 2 carbon, 4 hydrogen, and 2 oxygen atoms.

5.9 Identify the following changes as chemical or physical:a. putting milk on cerealb. baking breadc. boiling salt water

a. putting milk on cereal------physical b. baking bread-----------------chemicalc. boiling salt water------------physical

Which solution started out with the higher salt concentration?

The one on the right has higher concentration.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

biology #5 OYO

Question	Answer
5.1 The Bohr model of the atom is sometimes called the “planetary model” of the atom. Why?	Like the planets circle the sun the electrons circle the nucleus
5.2 What determines all of the atom’s properties? What determines the vast majority of an atom’s properties?	The electrons and protons, and neutrons determine the atoms properties
5.3 An atom has 13 electrons? How many protons does it have?	It has 13 protons.
5.4 Two atoms have slightly different properties, but they belong to the same element. What is different about them: their numbers of protons, neutrons, or electrons?	The neutrons are different.
5.5 The element carbon is composed of all atoms that have 6 protons. One of the atoms in the element carbon is carbon-13. How many protons, neutrons, and electrons are in a carbon-13 atom?	It has 6 protons, 6 electrons, and 7 neutrons.
5.6 Identify each of the following as either an atom, element, or molecule:a. NH3b. Pc. Carbon-14d. Se. P4	a. NH3------molecule b. P----------element c. Carbon-14---atomd. S-----------element e. P4----------molecule
5.7 A student is told to study the chemicals nitrogen monoxide (NO) and nitrogen dioxide (NO2) and determine that there are no differences. Is that right or wrong.	He is wrong because unlike nitrogen monoxide (NO), nitrogen dioxide is (NO2) has two oxygen atoms.
5.8 Name each element and the number of atoms of that element in one molecule of acetic acid (C2H4O2), which is the active ingredient of vinegar?	There are 2 carbon, 4 hydrogen, and 2 oxygen atoms.
5.9 Identify the following changes as chemical or physical:a. putting milk on cerealb. baking breadc. boiling salt water	a. putting milk on cereal------physical b. baking bread-----------------chemicalc. boiling salt water------------physical
Which solution started out with the higher salt concentration?	The one on the right has higher concentration.
5.11One of the main chemical reactions used to run an automobile engine is the combustion of octane. (C8h18): 2C8H18 + 25O2 + 16CO2 + 18H2O	C8H18 and O2CO and H2O218

Created by: eholsinger

"Know" box contains:
Time elapsed:
Retries: