If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have?A. 6 carbon atoms

B. 12 carbon atoms

C. 24 carbon atoms

D. 3 carbon atoms

Answers

Answer 1

Answer:

The fewer the carbon atoms, the closer it is to being a gas. The only one you have to check out is A which is hexane. You know that gasoline at the pumps has 8 carbons and its a liquid. So B and C are both not gases because they are above 8.

C6 (hexane) is a liquid at room temperature not a gas.

The answer is D. If there is a gas present, it must be C3

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Help PLEASE :DElaborate on the changes in molecular motion of particles as they change from solid to liquid to gas.Question 16 options:This is the answer >>>>>>>>As the phase changes occur, the freedom of motion of the particles increases.As the phase changes occur, the freedom of motion of the particles decreases.As the phase changes occur, the freedom of motion of the particles compresses.As the phase changes occur, the freedom of motion of the particles is constant.

Which factors are needed for organisms to live earth

Answers

Answer: sunlight, water, air, habitat, and food.

Explanation: we are all living organisms and we all have our five basic necessities for survival; sunlight, water, air, habitat, and food.

Which electrons are represented by all of the dots?

Answers

Simple. In the Lewis Dot Structure, the outer core electrons represent them all.Remember this: 8 is the max.

Final answer:

All of the dots in a Lewis symbol represent the valence electrons of an atom. Valence electrons are responsible for the atom's chemical properties and can be determined by the group number of the element on the periodic table.

Explanation:

All of the dots in a Lewis symbol represent the valence electrons of an atom. Valence electrons are the electrons in the outermost energy level of an atom and are responsible for the atom's chemical properties. The number of valence electrons can be determined by looking at the group number (also known as the column number) of the element on the periodic table.

For example, oxygen (O) is in group 16, so it has six valence electrons. Its Lewis symbol would have six dots surrounding the elemental symbol.

Similarly, chlorine (Cl) is in group 17, so it has seven valence electrons. Its Lewis symbol would have seven dots surrounding the elemental symbol.

Learn more about Valence electrons here:

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The Solvay process is a multistep industrial process used to produce washing soda, Na2CO3(s). In the last step of the Solvay process, NaHCO3(s) is heated to 300°C, producing washing soda, water, and carbon dioxide. This reaction is represented by the balanced equation below.2NaHCO3(s) + heat ==> Na2CO3(s) + H2O(g) + CO2(g)

Write the IUPAC name for washing soda.

Answers

Its IUPAC name is sodium carbonate. It is also known as soda ash. It is the water soluble sodium salt of carbonic acid and occurs as a crystalline heptahydrate. Sodium carbonate has an alkaline taste and when in solution forms a basic solution. One important application is that it is used commonly as a water softener.

A skillet is lined with a thin layer of cooking oil followed by a layer of unpopped popcorn kernels. Upon heating the kernels all pop thereby escaping the skillet. Which of the following physical and/or chemical changes occurred?

Answers

Physical change.

Explanation:

This is a physical change.

The reason for escaping pops is the water caught internal parts it's bit.
Inside the event that the bit is warmed to a tall satisfactory temperature, this water will modify into steam. Due to the troublesome and for the preeminent parcel nonporous shell, the steam has no put to go, coming nearly in a buildup of weight internal parts the bit.
Once the weight gets tall satisfactory and the temperature comes to around 180 degrees Celsius (355 degrees Fahrenheit), the pops escape from the skillet or bursts and the popcorn is turned internal parts out.

Which of the following would NOT be a physical property of matter?malleability

boiling point

color

reactivity

________________________________________________________

If a substance cannot be separated physically or chemically, it is __________.

a compound

an element

a solution

a mixture

___________________________________________________________________

If a substance cannot be separated physically, it is __________.

Question 6 options:

a pure substance

heterogeneous

a mixture

an alloy

___________________________________________________________________

How would you classify tap water?

Question 8 options:

a pure substance

a homogeneous mixture

a compound

a heterogeneous mixture

___________________________________________________________________

When sugar and water are mixed they make a solution. Another way to say a solution would be to call it a __________________.

pure substance

homogeneous mixture

compound

heterogeneous mixture

Answers

reactivity

solution

mixture

homogeneous mixture

i think the fourth one might be wrong sorry );

Which of the following would NOT be a physical property of matter?

reactivity

________________________________________________________

If a substance cannot be separated physically or chemically, it is __________.

an element

___________________________________________________________________

If a substance cannot be separated physically, it is __________.

an alloy

___________________________________________________________________

How would you classify tap water?

a compound

___________________________________________________________________

When sugar and water are mixed they make a solution. Another way to say a solution would be to call it a __________________.

compound

NO, because dental varnish interferes with the bonding and setting reaction of composite resins and glass ionomer restorations the use of varnish is contraindicated with these materials.

Answers

Answer:

Explanation: NO, because dental varnish interferes with the bonding and setting reaction of composite resins and glass ionomer restorations the use of varnish is contraindicated with these materials.

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