Which of the following is true about elements?
A.
Elements combine to form compounds in orga...
Biology, 19.01.2021 17:50 ellietalbot
Which of the following is true about elements?
A.
Elements combine to form compounds in organisms but not in nonliving substances.
B.
Elements do not combine to form compounds.
C.
Elements combine to form compounds in nonliving substances but not in organisms.
D.
Elements combine to form compounds in organisms and nonliving substances.
Answers: 1
Biology, 21.06.2019 16:00
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove
Answers: 2
Biology, 21.06.2019 20:00
Here's one way to follow the scientific method. place the missing steps in the correct position in the process.
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Biology, 22.06.2019 10:10
Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.
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