The requirements for Hydrogen Bonding are

Polar, Hydrogen Present, N, F, or O present

What is the Heisenberg Uncertainty Principle?

location + speed of an electron cannot both be known with great certainty

Positive on emission is when

A positron is emitted and is positively charged e-

The closeness of measurements to the correct value

The Bohr model of an atom shows

Electrons in the atom orbit the nuclear

How do you name a Monoatomic Anion

Take the root elemt. and drop the ending and instead add ide

States that the chemical+physical props of an elmt. repeat in a pattern

A direct proportion is

A change in 1 variable leads to the same type of change

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Chem Mid year

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Questions 24

Answers

1
Rutherford gold foil experiment proved
The neutron
That the nucleus existed
The electron
2
Wavelength and Frequency are directly related
False
True
3
What are the three states of matter
Deposition, freezing, solid
Solid,Liquid,gas
Solid, gas, electron
Solid, liquid, vaporization
4
Zeros between 2 sig figs are
They are significant
Don’t matter
They aren’t significant
5
Democritus believed the world was made up of atoms
False
True
6
Chemistry is the study of the composition, properties, and interactions of matter
False
True
7
In a Nonpolar covenant bond, the bonding e- are shared
False
True
8
The requirements for Hydrogen Bonding are
Nonpolar, Hydrogen, Zinc
Polar, Hydrogen Present, N, F, or O present
Polar, F present, He present
Nonpolar, Hydrogen present, O or F
9
What is the Heisenberg Uncertainty Principle?
A three dimensional region around the nucleus
location + speed of an electron cannot both be known with great certainty
We cannot know the location of an e- only probabilities of where it is
The equation that accurately describes electrons as waves mathematically
10
Positive on emission is when
Nuclei are turned into positrons
A positron is emitted and is positively charged e-
An electron is released into a positron
Radioactive decay occurs
11
The emission of electrons from a metal when light shines on the metal is
Electronegativity
Wave particle duality
Photoelectric effect
12
Mass is destroyed nor created during chem. Reactions or physical changes
False
True
13
Accuracy is
The closeness of measurements to the correct value
The closeness of a set of measurements to themselves
A pin point
Is the percent error
14
The difference between the mass of an atom and that make up an atom is
Significant figures
Atomic Mass
Mass Defect
Nuclear chemistry
15
Energy required to break a chemical bond and form neutral isolated atoms is
Bond energy
Kinetic energy
High energy
Potential energy
16
The Bohr model of an atom shows
Electrons in the atom orbit the nuclear
Neutrons in the atom orbit the nuclear
Protons in the atom orbit the nuclear
17
Wavelength is the distance between two peaks
False
True
18
Bonding together atoms raises the potential energy
True
False
19
The 2D depiction of a compound is
A dot diagram
Electron Configuration
A Lewis Structure
20
How do you name a Monoatomic Anion
Take the root elemt. and drop the ending and instead add ide
Take the root elemt. and drop the ending and instead add ite
Write the ions combined for the cmpd. next to each other
Simply referred to by the metal
21
There are 6 branches of chemistry
False
True
22
What is periodic law
The distance from the nucleus to the edge of an element
States that the chemical+physical props of an elmt. repeat in a pattern
An atom or group of atoms that has a + or - charge
The trend as the periodic table moves across
23
A direct proportion is
The test performance between two variables
The relationship is when a change in 1 variable leads to the opposite
The closeness of a set of measurements
A change in 1 variable leads to the same type of change
24
A mole of any element will weigh that elements
Atomic number(kg)
Protons
Atomic mass(g)

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