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Marina86 [1]
2 years ago
9

Why does liquid move like it does when heated in the middle?

Chemistry
1 answer:
Lapatulllka [165]2 years ago
6 0

Answer:

heating makes the alcohol molecules of the liquid move faster.

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Help ASAP,
zhuklara [117]

Answer:

Energy absorbed by <u>Iron block</u> E (iron) = 460.5 J

Energy absorbed by <u>Copper block</u> E (Copper) = 376.8 J

Explanation:

To find the heat absorbed, we can use the formula as,

<em>q = m c ΔT</em>

Here, Mass = m = 10 g = 0.01 kg

ΔT = change in temperature = 400 - 300 = 100 K = 100 - 273 = -173 °C

c = specific heat capacity

c for iron = 460.5 J/kg K

c for copper = 376.8 J/kg K

Plugin the values in the above equation, we will get,

<em>q (iron) = 0.01 kg × 460.5 J/kg K × 100 K            = 460.5 J</em>

<em>q (copper) = 0.01 kg ×  376.8 J/kg K × 100 K                 = 376.8 J</em>

7 0
3 years ago
Whitch statemeant correctly describes a physical change.
lukranit [14]
Answer:
The answer is B
4 0
3 years ago
Read 2 more answers
A 1.000 mL sample of acetone, a common solvent sometimes used as a paint remover, was placed in a small bottle whose mass was kn
ra1l [238]

Answer:

See explanation

Explanation:

Precision means the reputability of measurement and accuracy means how close a measurement is to the actual value. To get the measured mass of the acetone we need to substract the mass of the bottle from the measured mass of bottle and acetone.

The mass of the bottle is 38.0015g

⇒The mass of acetone in bottle 1= 0.7783g

⇒Mass of acetone in bottle 2= 0.7780g

⇒Mass of acetone in bottle3= 0.7786g

The measured value is near to each other. ⇒ the measurements are <u>precise</u>.

To check the <u>accuracy</u> we can compare the average value to the actual mass of the acetone.

Average of the acetone measurement is (0.7783+0.7780+0.7786)/3 = 0.7783g

The percentage of difference of the average measurement to the actual mass is = {(actual value-measured value)/actual value}x100%

={(0.7791-0.7783)/0.7791}x100%

=0.10%

So we can see the difference is very small ⇒ the measurement is accurate.

7 0
3 years ago
You put one ice cube on a room temperature rock and another ice cube on a room temperature piece of foil. Which ice cube will me
aksik [14]

Answer:

a ice cube on a room temperature rock

Explanation:

because the air temperature is warmer than the freezers which means the ice particle gather heat energy from warmer air.

5 0
3 years ago
What is the definition of optical fiber technology?
Natalka [10]

Answer:

Fiber optics is the technology used to transmit information as pulses of light through strands of fiber made of glass or plastic over long distances.

Explanation:

I did a test on it before

8 0
3 years ago
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