Biology, 24.05.2020 18:58 aksatx4035
The amount of each element in the reactants of photosynthesis equals the amount of each element in the products of the same reaction. Which of the following laws is this evidence of?
A. A Law of conservation of mass
B. B Law of motion
C. C Law of conservation of energy
D. D Law of thermodynamics
Answers: 3
Biology, 21.06.2019 16:00, caitlin89
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 19:30, pleasehelpme71
What effect does plate tectonics have an organic evolution
Answers: 1
Biology, 21.06.2019 23:30, juniorgutierrez997
In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?
Answers: 2
Biology, 22.06.2019 00:00, unknown9263
Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.
Answers: 1
The amount of each element in the reactants of photosynthesis equals the amount of each element in t...
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