Amathematical equation is an example of:
a model
a scientific theory
more than on...
Chemistry, 09.12.2019 20:31 applejackjay5818
Amathematical equation is an example of:
a model
a scientific theory
more than one of these
a scientific law
Answers: 2
Chemistry, 22.06.2019 12:00
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Chemistry, 22.06.2019 22:30
What must be in balance for temperatures to remain constant?
Answers: 1
Chemistry, 23.06.2019 03:30
The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?
Answers: 1
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