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Ch 2.1 - Atoms, Ions, and Molecules Flashcards | StudBud

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Ch 2.1 - Atoms, Ions, and Molecules

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Biology Quiz on basics of Chemistry (Section 2.1)

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Questions 10

Answers

1
What is the negatively charged particle found in an atom called?
prions
neutrons
electrons
protons
2
The variables that DO NOT change in an experiment are called
dependent variables
constants/controls
observations
independent variables
3
What is a compound?
a molecule of two oxygen atoms
separate atoms of multiple elements in varying ratios
two atoms of a single element bonded together
atoms of different elements bonded in certain ratios
4
Which phrase best describes atoms?
parts of a nucleus
smallest basic units of matter
single-celled organism
positively charged particles
5
Atoms connected by covalent bonds share
hydrogen ions
pairs of electrons
carbon and oxygen
ionic compounds
6
How do ions form?
Two atoms share electrons.
Atoms form covalent bonds.
Atoms combine to make a larger atom.
Atoms gain or lose electrons.
7
Which of the following cannot be broken down by ordinary chemical means?
compound
molecule
element
bond
8
Atoms in molecules share pairs of electrons when they make
specific heat
covalent bonds
ionic bonds
hydrogen bonds
9
How does an ionic bond form?
Two atoms combine as one.
Atoms share electrons.
Positive and negative ions attract
Electrons are exchanged between atoms.
10
An ion is formed when an atom gains or loses
bonds
neutrons
protons
electrons