The least condensed state of matter is

Answers

Answer 1

Answer:

The answer would be "Gas".

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Please help 30 points and brainlyist!!!! All of the following are isotopes of hydrogen, except: A. 1/0 H
B. 1/1 H
C. 0/1 H
D. 2/1 H

Answers

My dear friend ✌ ✌

The isotopes of the hydrogen atom are-:

▶1 , 2 and 3

So,
According to your options,

➡Only C is wrong.

Pls mark my answer as brainliest ✨☺

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Consider the
solubility curve at
right. Which
material is a
gaseous solute?

Answers

Answer:

Substance A

Explanation:

See attached worksheet,

The solubility of gasses decreases as temperature rises.

Which equation is a decomposition reaction?a. Li2CO3 ---> Li2O + CO2

b. Zn + HCl ---> ZnCl2 + H2

c. Na2O + CO2 ---> Na2CO3

d. C6H12O6 + O2 ---> CO2 + H2O

please help asap

Answers

Answer : (a) $Li_2CO_3\rightarrow Li_2O+CO_2$ is a decomposition reaction.

Explanation :

(a) $Li_2CO_3\rightarrow Li_2O+CO_2$ is a decomposition reaction.

Decomposition reaction : It is a type of chemical reaction in which a single compound decomposes into two or more compounds.

(b) $Zn+2HCl\rightarrow ZnCl_2+H_2$ is a displacement reaction.

Displacement reaction : It is a type of reaction in which a most reactive element displaces the least reactive element in a compound.

(c) $Na_2O+CO_2\rightarrow Na_2CO_3$ is a combination reaction.

Combination reaction : It is a type of reaction where two or more compounds combine to form a single compound.

(d) $C_6H_(12)O_6+6O_2\rightarrow 6CO_2+6H_2O$ is a combustion reaction.

Combustion reaction : It is a type of reaction where a hydrocarbon react with the oxygen to produced carbon dioxide and water.

Therefore, option (a) is a decomposition reaction.

The reaction in which reactant breaks down into more than one constituents is called decomposition reaction. So option A. Li2CO3 ---> Li2O + CO2 is correct.

A student wants to do scientific research on how nuclear fusion can be usedas a power source on Earth. What type of scientist does the student want to
become?

Answers

Answer:

A physicist

Explanation:

A physicist is one who deals with matter energy and how they are related

What is a disadvantage of using a structural model to show a chemical compound? Structural models provide minimal three-dimensional information. Structural models do not identify the number and type of each atom. Structural models cannot distinguish between single, double, and triple bonds. Structural models cannot distinguish between different isomers of a compound.

Answers

The answer is the first: that structural models provide minimal three-dimensional information. This is because the ball-and-stick model cannot show the actual size of the atoms depicted in the model. You also cannot see the actual bond lengths between the atoms. This, then, limits the accuracy of the model and fails to precisely portray how the chemical compounds being shown are like in all actuality. Thus, though you do see a three-dimensional picture of the chemical compound, this picture is not completely accurate and is not scaled to size.

Answer: A - Structural models provide minimal three-dimensional information.

Explanation:

Which mixture will not yield hydrogen gas? (A) sodium and water
(B) calcium and water
(C) zinc and hydrochloric acid
(D) zinc and concentrated nitric acid
(E) steam and red hot iron

Answers

E) Steam and red hot iron

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