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3 years ago

14

Which property of gases allows you to smell popcorn when you walk into a movie theater? compressibility of gas particles diffusi

on definite shape effusion

1 answer:

Tom [10]3 years ago

4 0

Diffusion. When you smell something you are actually smelling the gas it lets off

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Sarah is writing a paper explaining protein formation. Choose the correct way to complete each sentence.

Amanda [17]

Answer :

Amino acids join by forming (1) peptide bonds. Water is released.

The chains of amino acids vary according to their (2) side chains, which each have differing makeup.

These chains determine the protein’s structure and they fold to create a unique (3) third-dimensional shape.

Explanation :

Amino acid : The amino acids are the building blocks of protein. Amino acids are the compound which consist both amine $(-NH_2)$ and carboxylic $(-COOH)$ groups along with the side chains. In the protein, many amino acids are linked by the peptide bonds.

Th peptide bonds are formed by the combining of amino group of one amino acid to the carboxylic group of another amino acid by releasing of water.

Some examples of amino acids are glycine, lysine, alanine, etc.

Peptide bond formation image is shown below.

In the image 'R' can be contained by different groups like hydrogen, methyl, phenyl, etc

8 0

3 years ago

Significant factors of (9.9 x 10^4) + (4.88 x 10^2) + (7.60 x 10^3) = ______

Arisa [49]

Answer:

gurjfvdtshhjjgeghoogzgb buugdxcjknvdehooncdevkon

Explanation:

ccehjllgrt kloxq humk

3 0

3 years ago

Heat transferred by direct contact from one particle of matter to another is know as ____.

Alex777 [14]

Answer:

B

Explanation:

6 0

3 years ago

Read 2 more answers

A sample of quartz, which has a specific heat capacity of , is dropped into an insulated container containing of water at and a

klasskru [66]

This question is incomplete, the complete question is;

A 17.0 g sample of quartz, which has a specific heat capacity of 0.730 J.g⁻¹°C⁻¹, is dropped into an insulated container containing 200.0 g of water at 85°C and a constant pressure of 1 atm . The initial temperature of the quartz is 7.2°C.

Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has the correct 3 number of significant digits.

Answer:

the equilibrium temperature of the water is 83.9°C

Explanation:

Given the data in the question;

Since no heat is absorbed from or by the container, or the surroundings;

Then Heat lost by the quartz = heat gained by water

ΔH1 = ΔH2

DH = mcΔT

where m is mass, C is specific heat capacity and ΔT is temperature change;

so

(mcΔT)1 = (mcΔT)2

we know that; specific heat capacity of is 4200 Joule/Kilogram K (J/kg∙K) = 4.2 (J/g∙°C)

we substitute

17.0g × 0.730 J.g⁻¹°C⁻¹ × ( 7.2°C - T2) = 200.0g × 4.2 J/g∙°C × ( T2 - 85°C)

89.352 - 12.41T2 = 840T2 - 71400

840T2 + 12.41T2 = 89.352 + 71400

852.41T2 = 71489.35

T2 = 71489.35 / 852.41 = 83.86°C ≈ 83.9°C

Therefore, the equilibrium temperature of the water is 83.9°C

3 0

3 years ago

In a chemical reaction, which are the MOST LIKELY products of these reactants? 4Fe + 3O2 ?

klemol [59]

I have the same question atm, but I'm pretty sure this is the answer.
I'm pretty sure we're combining these together to get a reactant, so if this is one of your answer choices chose 2Fe2O3, reason is when we add 4Fe + 3O2, we get the same answer, but in a different form.

3 0

4 years ago

Read 2 more answers