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Chem 1010 exam with complete verified solutions(GUARANTEED SUCCESS)
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  • Chem 1010
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  • Chem 1010

Accuracy refers to __________. how close a measured number is to the true value A combination of sand, salt, and water is an example of a ____________. Heterogeneous Brainpower Read More Calculate the mass of the air contained in a room that measures 2.50m x 5.50 m x 3.00m (dens...

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  • September 2, 2024
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  • 2024/2025
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Chem 1010 exam with
complete verified
solutions(GUARANTEED
SUCCESS)
Accuracy refers to __________. - answer how close a measured number is to
the true value


A combination of sand, salt, and water is an example of a ____________. -
answer Heterogeneous


Calculate the mass of the air contained in a room that measures 2.50m x
5.50 m x 3.00m (density of air 1.29 g/dm^3) - answer 53.2 kg


The Hope diamond weighs 44.0 carats. Determine the volume occupied by
the diamond, given that its density is 3.5 g/cm3 at 20°C, and that 1 carat
= 0.200 g. - answer 2.5cm^3


What is the volume of a container that contains 14.3 g of a substance
having a density of 0.988 g/cm3? - answer 14.5cm^3


Which of the following pairs can be used to illustrate the law of multiple
proportions? - answer H2O and H2O2


An atom of the isotope sulfur-31 consists of how many protons, neutrons,
and electrons?
(p = proton, n = neutron, e = electron) - answer 16 p, 15 n, 16 e


What is the mass number of an atom that contains 30 protons, 30
electrons, and 38 neutrons? - answer 68

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