Chemistry, 19.02.2021 19:40 zahradawkins2007
Which two statements describe organ systems working together to remove wastes from the body? A. The digestive system breaks down food into molecules that can move into the blood. B. The circulatory system carries oxygen-rich blood into muscles in the legs. C. The respiratory system exhales carbon dioxide that enters the lungs from blood vessels. D. The integumentary system gives off thermal energy that comes from blood vessels.
Answers: 1
Chemistry, 22.06.2019 08:30
The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.
Answers: 1
Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
Answers: 1
Chemistry, 23.06.2019 05:00
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?
Answers: 3
Chemistry, 23.06.2019 12:00
Asubstance that will change shape to fit its container but has a definite volume is in a phase of matter
Answers: 1
Which two statements describe organ systems working together to remove wastes from the body? A. The...
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