Carbon forms molecular compounds with some elements from Group 16. Two of these compounds are carbon dioxide, CO2, and carbon disulfide, CS2.Carbon dioxide is a colorless, odorless gas at room temperature. At standard temperature and pressure, CO2(s) changes directly to CO2(g).
Carbon disulfide is formed by a direct reaction of carbon and sulfur. At room temperature, CS2 is a colorless liquid with an offensive odor. Carbon disulfide vapors are flammable.
59 Identify one physical property and one chemical property of CS2. [1]
Answers
Answer: Physical property of is state of matter (liquid) and it is a chemical compound.
Explanation:
Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.
Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
Carbon disulfide is the compound which is formed by the chemical combination of carbon and sulfur atoms. The equation for this follows:
The chemical property of carbon disulfide is different from that of carbon and sulfur. Thus, this is a chemical compound.
It is given, that this compound is a colorless liquid, which means that the state of this compound is liquid state.
Hence, physical property of is state of matter (liquid) and it is a chemical compound.
The physical property of carbon disulfide is that at room temperature, CS2 is a colorless liquid with an offensive odor. The chemical property of carbon disulfide is that it is formed by a direct reaction of carbon and sulfur.
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b.
At higher elevations, it would take longer to hard boil an egg, because there is a lower boiling point, so the egg is boiling in water at a lower temperature.
c.
At higher elevations, it would take less time to hard boil an egg, because there is a lower boiling point. Therefore it would take less time to achieve the boiling point.
d.
At higher elevations, it would take longer to hard boil an egg, because it would take longer to achieve the boiling point.
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n=const.
R=const.
V~T, it means If temperature increase than volume of gas increase.
if temperature decrease than volume of gas decrease.
FALSE
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-facts
-personal viewpoints
-none of the above
Answers
Answer:
Facts
Explanation:
You can literally read the lesson it tells you science is
all about facts
(B) proton
(C) electron
(D) atom
Answers
Answer:
atom
Explanation:
(A) molecule is the a group of atoms which are bonded together,
(B) proton it is a particle that comprise an atom
(C) electron it is a particle that comprise an atom
(D) atom is the smallest part of an element that can still be identified
Hence the correct answer is D. The smallest part of an element that can still be identified as that element is an atom.
Answer:
(D) atom
Explanation:
The atom is the smallest unit of matter that has the properties of a chemical element.
The atom is composed of protons, electrons, and neutrons, they are subatomic particles.
Each chemical element has an atom that identifies it, but all atoms are composed of subatomic particles, this means that all atoms have electrons, neutrons, and protons.
Depending on the number of subatomic particles that we have is what gives the properties to each atom.
A set of two or more atoms, of one or more elements, form a molecule