CHEMISTRY HIGH SCHOOL

How many atoms of carbon are present in a molecule of :
Fructose and galactose

Answers

Answer 1
Answer: In Fructose, there are 4 carbon atoms. Fructose is a 5 atom molecule, and one of these is oxygen, therefore, the other 4 are carbon.
In Galactose, there are 6 carbon atoms.
Hope this helps :) 
Answer 2
Answer:

Answer:

the answer is starch

Explanation: i chose fructose but got it wrong and showed that starch is correct

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A beaker containing a mixture of N2(g) and H2(g) is cooled by placing it in a tray of cold water. In response to the cooling, the likely number of collisions between the molecules of N2(g) and H2(g) will . The rate of the reaction will .

Answers

The frequency of collisions between the N₂ and H₂ molecules will decrease and the rate of reaction will also decrease.

Since the water is cooler than the gas mixture, heat will flow from the gas to the water.

The gas will cool down, so the average kinetic energy of the gas molecules will decrease.

The molecules will be moving more slowly, so there will be fewer collisions and fewer of these collisions will have enough energy to react.

The rate of reaction between H₂ and N₂ molecules at room temperature is exceedingly slow, but cooling the gas mixture will make the reaction even slower.

Answer:

A beaker containing a mixture of N2(g) and H2(g) is cooled by placing it in a tray of cold water. In response to the cooling, the likely number of collisions between the molecules of N2(g) and H2(g) will  decrease. The rate of the reaction will  decrease.

Explanation:

#platofam

What do you think will happen if you pinch your arm after you stub your toe?

Answers

It would distract the pain in your toe. That's all I got

it would distract the pain

When she told us the party was canceled there was a deafening silence? A. Malapropisms B.imagery C. Hyperbole D.oxymoron

Answers

The answer is: D.oxymoron.

The oxymoron  is a combination of contradictory or incongruous words.

In this example, deafening silence.

Deafening is a noise so loud as to make it impossible to hear anything else.

Silence is oposite of deafening, complete absence of sound.

Other examples are: big baby, original copy, living dead, sweet sorrow, soft rock, pretty ugly.
Hi There! :D

When she told us the party was canceled there was a deafening silence? A. Malapropisms B.imagery C. Hyperbole D.oxymoron

oxymoron

A cylinder with a movable piston contains a sample of gas having a volume of 6.0 liters at 293 K and 1.0 atmosphere. What is the volume of the sample after the gas is heated to 303 K, while the pressure is held at 1.0 atmosphere?(1) 9.0 L (3) 5.8 L
(2) 6.2 L (4) 4.0 L

Answers

The volume of sample when the gas is heated to 303 K is  \boxed{{\text{(2)6}}{\text{.2 L}}}

Further explanation:

Charles’s law:

Charles’s work showed that at constant pressure, the volume-temperature relationship for a fixed amount of gas is linear. In other words, Charles’s law can be stated that at constant pressure, the volume occupied by a fixed amount of a gas is directly proportional to its absolute temperature (Kelvin). This relationship is known as Charles’s law.

The mathematical representation of Charles’s law is,

{\mathbf{V}}\propto{\mathbf{T}}                                                                           [P and n are constant]

Where,

⦁ V is volume occupied by the fixed quantity of gas.

⦁ T is the temperature of a gas.

⦁ P is the pressure of a gas.

⦁ n denotes the number of moles of gas.

The relationship can also be expressed as,

\frac{{\text{V}}}{{\text{T}}} = {\text{constant}}                                                  [P and n are constant]

Or it can also be expressed as follows:

\frac{{{{\text{V}}_{\text{1}}}}}{{{{\text{T}}_{\text{1}}}}} = \frac{{{{\text{V}}_{\text{2}}}}}{{{{\text{T}}_{\text{2}}}}}                                                          …… (1)

Here,

{{\text{V}}_1}  is the initial volume of gas.

{{\text{V}}_2}  is the final volume of gas.

{{\text{T}}_1}  is the initial temperature of the gas.

{{\text{T}}_2}  is the final temperature of the gas.

Rearrange equation (1) to calculate {{\text{V}}_2} .

{{\text{V}}_{\text{2}}} = \frac{{{{\text{V}}_{\text{1}}}{{\text{T}}_{\text{2}}}}}{{{{\text{T}}_{\text{1}}}}}                                                                  …… (2)

The value of {{\text{V}}_1}  is 6 L.

The value of {{\text{T}}_1}  is 293 K.

The value of {{\text{T}}_2}  is 303 K.

Substitute these values in equation (2).

\begin{aligned}{{\text{V}}_{\text{2}}}&=\frac{{\left({{\text{6 L}}}\right)\left( {{\text{303 K}}}\right)}}{{\left( {{\text{293 K}}}\right)}}\n&={\text{6}}{\text{.20477 L}}\n&\approx{\mathbf{6}}{\mathbf{.2 L}}\n\end{aligned}

So option (2) is the correct answer.

Learn more:

1. Law of conservation of matter states: brainly.com/question/2190120

2. Calculation of volume of gas: brainly.com/question/3636135

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Ideal gas equation

Keywords: Charles’s law, volume, temperature, pressure, volume temperature relationship, absolute temperature, constant pressure, relationship, V directly proportional to T, ideal gas, ideal gas equation number of moles, moles, P, n, V, T, volume of gas, 6.2 L, 303 K, 293 K, 6 L.

The volume of the sample after the gas is heated to 303 K is 6.2 L

The correct answer to the question is Option (2) 6.2 L

From the question given above, the following data were obtained:

Initial volume (V₁) = 6 L

Initial temperature (T₁) = 293 K

Final temperature (T₂) = 303 K

Pressure = constant

Final volume (V₂) =?

Using the Charles' law equation, we can obtain the final volume of the gas as follow:

(V_(1))/(T_(1)) = (V_(2))/(T_(2))\n\n(6)/(293) = (V_(2))/(303)\n\n

Cross multiply

293 × V₂ = 6 × 303

293 × V₂ = 1818

Divide both side by 293

V_(2) = (1818)/(293)\n\n

V₂ = 6.2 L

Therefore, the volume of the sample after the gas is heated to 303 K is 6.2 L

The correct answer to the question is Option (2) 6.2 L

Learn more: brainly.com/question/16927784

Which of these is an appropriate instrument to measure mass?balance
burette
ruler
graduated cylinder

Answers

The appropriate instrument to measure mass is through the use of a balance. This type of equipment is different from your regular weighing scale. The balance actually measures based on a known mass unlike the weighing scale which measures only the weight of an object.

Answer: Balance

Explanation: Got it right on my test

What determines the strength of a dipole dipole force?

Answers

Answer:

The more polar the molecules, the stronger the force. The more hydrogen in the molecule, the stronger the force.

Explanation:

I hope this helps and please ask if you need further help!
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