Test Question Preview (ID: 25901)
Tial.
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What is the charge of an electron?
a) positive
b) negative
c) neutral
d) the same as the proton
What is the charge of the proton?
a) positive
b) negative
c) neutral
d) The same as the electron.
What is the atomic mass of an atom that has 11 protons, 11 electrons, 13 neutrons?
a) 11
b) 13
c) 24
d) 35
What element has an atomic number 20?
a) sodium
b) phosphorus
c) lithium
d) calcium
What element has the atomic number 11?
a) sodium
b) calcium
c) lithium
d) potassium
What is the name for the compound KCl?
a) krypton chlorine
b) krypton chloride
c) potassium chlorine
d) potassium chloride
What is the molar mass of sodium chloride?
a) 58.44 g/mol
b) 22.99 g/mol
c) 35.453 g/mol
d) 78.45 g/mol
How many moles are in 116.88 grams of sodium chloride?
a) 1
b) 2
c) 3
d) 4
What is a metric unit of mass?
a) liter
b) psi
c) particle
d) gram
What is an element that has luster, conducts heat and electricity, and usually bends without breaking?
a) metal
b) nonmetal
c) metalloid
d) halogen
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