Mr. Fuller assigned his science class a lab comparing the masses of objects to the nearest gram using a balance. The mass of a paper clip is about 1 gram. How many paper clips will it take to balance the scale, if it is determined that a 1 centimeter cube of gold has the mass of 19.3 grams?
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Answer:
C) 19
Explanation:
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Related Questions
During nuclear fission, great amounts of energy are produced from____. A. particle accelerators B. tremendous amounts of mass C. a series of chemical reactions D. very small amounts of mass.
When dissolved in water, an Arrhenius base yields(1) hydrogen ions (2) hydronium ions(3) hydroxide ions (4) oxide ions
Is AgOH aqueous or a solid?
Determime the number of moles in the following compounds; a. 125 g of H2SO4 b. 35 g of CuSO4 × 5H2O
b. producing flowers
c. being a prokaryote
d. being an autotroph
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The correct option is d. being an autotroph. All plants are multicellular eukaryotes that produce their food through the process of photosynthesis.
What are autotroph ?
Autotrophs are organisms that are capable of producing their own food using energy from the environment, such as sunlight or chemicals. They are also known as "producers" in ecosystems because they are able to synthesize organic molecules from simple inorganic substances.
Plants are one of the most well-known examples of autotrophs, as they use energy from sunlight to produce their own food through photosynthesis.
Not all plants produce flowers, as there are some plant groups that do not produce flowers such as ferns and mosses. Additionally, plants are not unicellular as they are made up of many cells. Finally, plants are not prokaryotes, as they have complex cells with a nucleus and other organelles.
Hence, option d is correct.
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ion in the aqueous solution is
(1) O2 (aq) (3) H (aq)
(2) OH2 (aq) (4) OH (aq)
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Answer : The correct option is, (4) .
Explanation :
According to the Arrhenius theory, an acid is a substance that ionizes in water to gives ions (hydronium ions or hydrogen ions) and a base is a substance which ionizes in water to gives
ions (hydroxide ions).
As we know that when the potassium hydroxide (KOH) dissolves in water or ionizes in water to gives ions (hydroxide ions) and
ions (potassium ion). That means
ion is a negative ion in aqueous solution and
ions is a positive ion in aqueous solution.
Hence, the correct option is, (4) .
That's the answer.
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-- Increase the pressure on it.
-- Lower its temperature.
The liquefication is faster and easier if you do both.
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Answer:
Yes, T2R is an molecule
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Ice is a mixture and it can be a compound at the same time. A mixture is when you have to substance's put together fro example you can mix salt and sugar together. But a compound is when two different elements or molecules are combined. Ice cream is a mixture or cream and sugar mainly.