Chemistry, 18.09.2019 21:30 kiragor2545
Scientists decide the age of different rock layers by the things that they uncover in the rock. which of the items below could scientists use to date a layer of rock?
an insect flying near the dig site
a fossilized fish
a raindrop on the rock
a green leaf that fell off of a tree
Answers: 1
Chemistry, 22.06.2019 10:00, 2019reynolds
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 22:30, arodavoarodavo
Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.
Answers: 3
Chemistry, 23.06.2019 01:30, kaitie60
Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity
Answers: 2
Scientists decide the age of different rock layers by the things that they uncover in the rock. whic...
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