Biology, 25.11.2019 06:31, brenda0014
6. a chemist wants to build a model of an element using a box. what should the box be filled with to
illustrate the relationship between atoms and elements?
a. red marbles because bonds form between atoms that are the same
b. red marbles because an element is made up of atoms that all have the same properties
c. an equal number of red and blue marbles because an element is made up of an equal ratio of atoms
d. an equal number of red and blue marbles because bonds form between atoms that have different
properties
polyethylene is a flexible substance that is used in some plastic bags. the picture shows a model of
polyethylene
Answers: 1
Biology, 22.06.2019 00:40, abdullahs4639
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
Answers: 3
Biology, 22.06.2019 11:10, tiannahwlit
Look at the photo of the leaf, which term best describes this leaf ? a-simple. b-parallel. c-lobed. d-tooth.
Answers: 2
6. a chemist wants to build a model of an element using a box. what should the box be filled with to...
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