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WorksheetsNature of Matter and Properties of Water
Total questions: 25
Worksheet time: 14mins
Atoms in molecules share pairs of electrons when they form
covalent bonds.
ionic bonds.
hydrogen bonds.
polymers.
Atoms transfer electrons when they form
covalent bonds.
ionic bonds.
hydrogen bonds.
polymers.
The positively charged particle in the nucleus of an atom is called the
neutron
ion
proton
electron
When is an ionic bond formed?
when electrons are shared
when protons are shared
when oppositely charged atoms gain or lose electrons
when oppositely charged atoms gain or lose a proton
What gives water so many important properties for life?
adhesion and cohesion
the amount of carbon in each molecule
energy released exothermically
hydrogen bonds give it polarity
What makes a chemical reaction?
matter is conserved
breaking and forming of chemical bonds
when products form reactants
when you do a lab
Which of the following solutions has the highest Hydrogen ion concentration?
a solution with a pH of 1
a solution with a pH of 4
a solution with a pH of 7
a solution with a pH of 10
The building blocks of most living things contain the element
carbon
nitrogen
calcium
sodium
Number of protons that an atom has
Atomic symbol
Atomic Number
Atomic Mass
Mass Number
Two or more atoms combined (covalent bonding)
Molecule
Compound
Isotope
Ion
The oxygen atom in water is slightly ____.
negative
positive
The reason water sticks to your skin is ___.
adhesion
cohesion
The reason water beads up on a freshly waxed car is due to ___.
adhesion
cohesion
A high specific heat means water ____. (select all that are true)
takes a long time to change temperature.
takes a lot of heat to increase temperature.
holds a lot of heat.
is good at regulating Earth's temperature.
Because solid water is less dense than liquid water, ___ floats.
solid water
liquid water
