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3 years ago

Steps in complete balanced equation of a process

Chemistry

1 answer:

Vlad [161]3 years ago

7 0

Answer:

Step 1: The Unbalanced Chemical Equation. The unbalanced chemical equation is given to you.

Step 2: Make a List.

Step 3: Identifying the Atoms in Each Element.

Step 4: Multiplying the Number of Atoms.

Step 5: Placing Coefficients in Front of Molecules.

Step 6: Check Equation.

Step 7: Balanced Chemical Equation.

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Calculate the Kelvin temperature to which 10.0 L of a gas at 27 °C would have to be heated to change the volume to 12.0 L. Units

KatRina [158]

Hello!

For this problem, we will be applying Charles' Law:

V1/T1 = V2/T2

Now that we have the formula, let's convert the temperature to Kelvin.

27 + 273 = 300K

Let's plug everything in now!

10/300 = 12.0/x

Simplified:

1/30 = 12.0/x

Cross-multiply:

1x = 30*12.0

x = 360

Check!

10/300 = 12/360

300*12 = 360*10

3600 = 3600

Therefore, you would have to heat the gas at a temperature of 360K in order to raise the volume to 12.0L.

4 0

3 years ago

What is the definition of an ion.

mario62 [17]

*(Answer)*= An ion can have a positive or negative charge. Furthermore, it is a an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

*(Request)*= Searching the definition can help you find a definition faster.

Hope this helps

User who Answered: BangtanBoyScouts

4 0

4 years ago

Why is cl2 a subcript

vazorg [7]

Answer:

In Cl $_2$ , the 2 is a subscript because it indicates there are 2 of the same elements. The Lewis structure would display it as Cl-Cl.

On the other hand, a superscript would indicate a specific charge.

All subscripts show the amount of the specific element there is.

An example would be O $_2\\$ or N $_2$ , they both show that there are 2 of the same elements.

If the subscript is outside a parenthesis such as $Ca_3(PO_4)_2$ it indicates there are 2 $PO_4$ molecules.

5 0

3 years ago

If 200 grams of water is to be heated from 24.0oC to 100.0oC to make a cup of tea, how much heat must be added?

aksik [14]

According to this formula:

Q = M*C*ΔT

when we have M ( the mass of water) = 200 g

and C ( specific heat capacity ) of water = 4.18 J/gC

ΔT (the difference in temperature) = Tf - Ti

= 100 - 24

= 76°C

So by substitution:

Q = 200 g * 4.18 J/gC * 76 °C

= 63536 J

∴ the amount of heat which be added and absorbed to raise the temp from 24°C to 100°C is = 63536 J

3 0

4 years ago

Order the follow processes from (1) the least work done by the system to (5) the most work done by one mole of an ideal gas at 2

quester [9]

Answer : The order of process from (1) the least work done by the system to (5) the most work done by the system will be:

(1) < (5) < (3) < (4) < (2)

Explanation :

The formula used for isothermally irreversible expansion is :

$w=-p_{ext}dV\\\\w=-p_{ext}(V_2-V_1)$