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drek231 [11]
3 years ago
13

Which compound is an electrolyte ? 1) butene 2) propane

Chemistry
1 answer:
inna [77]3 years ago
8 0

Answer:

1.)

Explanation:

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Jessie has never seen snow, but today the weather conditions may be just right! He knows the temperature on the Fahrenheit therm
Natalka [10]
The answer is 32° F, because water freezes at this temperature under normal pressures, and snow is water vapor frozen into ice crystals. 




N.b., it usually needs to be a little bit colder to have snow, but this is around the maximum (although I've seen snow around 38° F before).
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3 years ago
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If the temperature of a 5 L sample of gas is lowered from 400k to 200k, what will the resulting volume of the gas be?
FrozenT [24]

The answer would be 2.5ML

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3 years ago
How is mass calculated given density and volume? (1 point) Question 8 options: 1) Volume divided by volume 2) Sum of volume and
laila [671]

Answer:

3) Density multiplied by volume

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

So by rearranging this formula mass can be determine.

 d = m/v

m = d×/v

Unit of mass when volume in mL and ddensity is g/mL

m = g/mL×mL

m = g

Example:

density = 5g/mL

volume = 3 mL

mass = ?

m = d×v

m = 5g/mL ×3 mL

m = 15 g

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3 years ago
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100 points!! Brainliest if correct!!
Misha Larkins [42]

D has the fastest reaction rate because dynamite explodes almost immediately.

A isn't correct because rusting nails take forever to completely rust.

B isn't correct because logs burning can take around 10 to 20 minutes.

C isn't correct because food digestions takes anywhere between 10 minutes to an hour.

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A pupil adds 5 cm of 12 mol.dm sulphuric acids to make a 250 cmº solution. Calculate the
klemol [59]

Answer:

0.500 mol/dm³

Explanation:

Using the formula below;

CaVa = CbVb

Where;

Ca = concentration of acid (mol/dm³)

Cb = concentration of base (mol/dm³)

Va = volume of acid (cm³)

Vb = volume of base (cm³)

In accordance to the information provided in this question is;

Va = 5cm³

Vb = 250 cm³

Ca = 12 mol/dm³

Cb = ?

Using CaVa = CbVb

12 × 5 = Cb × 250

60 = 120Cb

Cb = 60/120

Cb = 0.500 mol/dm³

8 0
3 years ago
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