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Match it!
Match it! Select the correct answer from the pull down...Good luck!
Which of these elements is the most reactive?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
The universal law of gravitation state that the movements of the planets around the sun depend on
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
The alkali metals are in group 1 in the Periodic Table. The atoms of alkali metals have 1 electron in the outmost level. Which of the following statements about alkali metals is true?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
Which of these is an example of a technology designed to meet an economic need?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
When a chemical reaction occurs, atoms are never
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
In a laboratory investigation on changes in states of matter, Melissa observes that the melting point of water is 0 Celsius and that the freezing point of water is 0 Celsius. What can Melissa conclude from this observation?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
How might a scientist accendentally introduce bias into an experiment?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
What ion is produced in solution by every acid?
nuclear power plants that produce electric current
hydronium
nitrogen
the planet's mass and distance from the sun
Alkali metals are reactive
melting and freezing can occur at the same time
by working with several other scientists instead of working alone
destroyed
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