1. which of the following can be used to measure the rate of photosynthesis?
a. light intens...
Biology, 08.11.2019 17:31 casynlee6488
1. which of the following can be used to measure the rate of photosynthesis?
a. light intensity (%)
b. oxygen production (ml/hr)
c. temperature
d. co2 level
Answers: 2
Biology, 21.06.2019 16:00
Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.
Answers: 1
Biology, 21.06.2019 16:00
Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength
Answers: 1
Biology, 22.06.2019 05:10
1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?
Answers: 2
Mathematics, 29.10.2019 13:31
Social Studies, 29.10.2019 13:31
Mathematics, 29.10.2019 13:31
History, 29.10.2019 13:31
English, 29.10.2019 13:31
Chemistry, 29.10.2019 13:31
History, 29.10.2019 13:31