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worty [1.4K]
2 years ago
11

Which statement best describes the direction of heat flow by conduction between two samples of the same material?

Chemistry
2 answers:
tigry1 [53]2 years ago
6 0

Answer: 2. Heat flows from faster molecules to slower molecules when they collide.

Explanation: Hope this helped! :)

Goshia [24]2 years ago
4 0

Answer:

Heat flows from faster molecules to slower molecules when they collide.

Explanation:

brainliest will be appreciated

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A sample of gas occupies 10 L at STP. What
puteri [66]

Pressure is 5.7 atm

<u>Explanation:</u>

P1 = Standard pressure = 1 atm

P2 = ?  

V1 = Volume = 10L

V2= 2.4L

T1 = 0°C + 273 K = 273 K

T2 = 100°C + 273 K = 373 K

We have to find the pressure of the gas, by using the gas formula as,

$\frac{P 1 V 1}{T 1}=\frac{P 2 V 2}{T 2}

P2 can be found by rewriting the above expression as,

$P 2=\frac{P 1 \times V 1 \times T 2}{T 1 \times V 2}

Plugin the above values as,

$P 2=\frac{1 \text {atm} \times 10 L \times 373 \mathrm{K}}{273 \mathrm{K} \times 2.4 \mathrm{L}}=5.7 \text { atm }

4 0
2 years ago
Draw a triacylglycerol (triglyceride) made from glycerol, myristic acid [CH3(CH2)12COOH], palmitic acid [CH3(CH2)14COOH], and ol
Sergio039 [100]

Answer:

The triglyceride made from glycerol, myristic acid, palmitic acid and cis-oleic acid is shown in the attached pictures.

Explanation:

A triglyceride or triacylglyceride is an ester derived from glycerol and three fatty acids. The fatty acids of this exercise are myristic acid, palmitic acid and oleic acid.

A fatty acid is a biomolecule of lipid nature formed by a long linear hydrocarbon chain, of different length or number of carbon atoms, at the end of which is a carboxyl group.

The myristic acid has a carbon chain of 14 carbon atoms with a carboxyl group at one end.

Palmitic acid has a carbon chain of 16 carbon atoms with a carboxyl group at one end.

Oleic acid has a carbon chain of 18 carbon atoms with a carboxyl group at one end and a double bond at position 9.

Triglyceride is formed by the esterification of the glycerol oxidrile group and the carboxyl acid group.

7 0
2 years ago
What is the [h3o + ] in a 0.050 m solution of ba(oh)2?
elena-14-01-66 [18.8K]
The H3O+ in a 0.050M  solution of Ba(OH)2  is calculated as below

write  the equation for the dissociation of Ba(OH)2

Ba(OH)2  =  Ba^2+  +2OH^-

calculate the OH-  concentration

by use of mole ratio between Ba(OH)2  to OH^- which is 1:2 the concentration of OH  =  0.050 x2  = 0.1 M

by  use of  the  formula ( H3O+)(OH-) =  1 x10 ^-14

by  making H3O+ the subject of the formula
H3O+ = 1 x10^-14/ OH-

substitute  for OH-

H3O+ =  (1 x10^-14 )/0.1

=  1  x10^-3  M
7 0
2 years ago
Read 2 more answers
A 11.0 kg iron weightlifting plate has a volume of 1400 cm3 . What is the density of the iron plate in g/cm3?
qwelly [4]
The easy part about this question is that it already gives you the equation to use. If you're trying to find the weight in g/cm^3, all you have to do is divide the weight in grams (g) by the volume in cubic centimeters (cm^3).

The problem already gives you the volume, so you just need to convert kilograms (kg) into grams (g).

Hint: "kilogram" means 1000 grams. There are 1,000 grams in each kilogram.

So find the weight of the object in grams, then divide that number by the volume in cm^3.
5 0
2 years ago
Modify the given molecule to show the product of the oxidation reaction using as the oxidizing agent. Include the appropriate hy
Otrada [13]

Answer:

NADH and FADH

Explanation:

An oxidizing agent is a chemical substance which has one among the three listed properties.

1. It can accept electrons.

2. It can remove hydrogen.

3. It can add oxygen to the reactant.

NAD+ and FAD+ serve as an oxidizing agent because they not only accept a pair of electron but also remove hydrogen. In this molecule, they have actually taken hydrogen from carbon where OH functional group was present and oxidizing that particular alcohol group to ketone. Please see the image attached.

7 0
2 years ago
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