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DedPeter [7]
3 years ago
8

Can someone PLEASE help me with this chemistry assignment

Chemistry
1 answer:
xeze [42]3 years ago
5 0

Make it like a ice dissolving in a cup of water but draw salt inside of the ice

Think of it as a ice cube but with salt, it's salt dissolving in the water so it's like the salt will dissolve and the ice would melt

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A certain sample of a gas has a volume of 20 L at 0 oC and 1 atm. A plot of the experimental data of its volume against the Cels
creativ13 [48]

Answer:

The absolute zero temperature T = - 269.91° C

Explanation:

From the given information:

The plot of the volume of the experimental data against the celsius temperature can be expressed mathematically as:

V = mT + c

V = 0.0741 × T+c --- (1)

where;

m, which is the straight line of the slope = 0.0741

replacing the value of V to be = 20 L, T= 0.

Then:

20 = 0.0741 × 0 + c

20 = c

From equation (1), replacing the value of c with 20, we have:

V = 0.0741 × T+20

SO, to determine absolute zero temperature: we have the volume to be zero at absolute zero temperature, Thus:

0 = 0.0741 × T+20

0.0741 T + 20  = 0

0.0741 T = - 20

\mathbf{T =  \dfrac{-20}{0.0741}}

T = - 269.91° C

6 0
3 years ago
Which part of the electromagnetic spectrum has a higher frequency than ultraviolet light?
Alla [95]
<span>Which part of the electromagnetic spectrum has a higher frequency than ultraviolet light? </span>B. Gamma Rays.

3 0
3 years ago
Technician A says that a MAF sensor actually measures the density and amount of air flowing into the engine. Technician B says a
IgorC [24]

Answer:

Both technicians A and B are right

Explanation:

A mass flow sensor (MAF sensor) is defined as a sensor which is normally used to estimate the mass flow rate of air that flows into an internal combustion engine. The estimated parameter is used at the engine control unit to ensure that the actual mass of fuel is supplied to the engine. A MAF sensor can also measures the density and amount of air flowing into the engine. In addition, a hot wire MAF sensor uses the electronics in the sensor itself to heat a wire 70°C above the temperature of the air entering the engine. Therefore, both technicians A and B are right.

7 0
4 years ago
Chemistry water properties..?
nadya68 [22]

Answer:

Water can inmolecular hydrogen bonds

6 0
3 years ago
Which of the alkali metals are liquids at 50°C?
luda_lava [24]
Hello!

I believe the correct answers are: Bromine (Br) and Mercury (Hg).

I really hope this helped you out! :)
3 0
3 years ago
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