Chemistry, 12.02.2021 02:10 hardyfombu
This question involves a reaction between copper oxide, CuO, and sulfuric acid, H2SO4:
CuO+H₂SO₄→CuSO₄+H₂O
What mass of water is produced when 2.0 g of copper oxide reacts with an excess of sulfuric acid?
(Relative formula masses are: CuO = 79.5; H2O = 18)
Give your answer to 2 decimal places.
Answers: 3
Chemistry, 22.06.2019 11:00, bigwaYne
Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?
Answers: 2
Chemistry, 23.06.2019 17:10, gerardoblk5931
Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.
Answers: 1
This question involves a reaction between copper oxide, CuO, and sulfuric acid, H2SO4:
CuO+H₂SO₄→Cu...
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