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3 years ago

What do you think happens to the air in the collid when ice cream melts ?

Chemistry

2 answers:

9966 [12]3 years ago

6 0

Answer:

its dispersed particles absorb energy and begin to move faster.

Explanation:

Charra [1.4K]3 years ago

4 0

When ice is warmed above freezing, its dispersed particles absorb energy and begin to move faster.

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Sloan [31]

Wavelength is the distance between crests of a wave. Wavelength can be calculated by the speed of light divided by frequency

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3 years ago

Read 2 more answers

A 975 L balloon contains helium. On the ground the temperature is 30 0C and the pressure is 743 torr. What will be the balloon's

Archy [21]

Answer:

V₂ = 1518L

Explanation:

-Using combined gas law:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

<em>Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

<em>Initial states:</em>

P₁ = 743 torr

V₁ = 975L

T₁ = 30°C + 273.15K = 303.15K

P₂ = 375 mmHg = torr

V₂ = Our incognite

T₂ = -35°C + 273.15K = 238.15K

Replacing:

$\frac{743torr*975L}{303.15K} =\frac{375torrV_2}{238.15K}$

6 0

3 years ago

What are 3 examples of pairs of atoms with polar covalent bonds?

mezya [45]

Answer:

Water - H2O

Ammonia - NH3

Sulfur dioxide - SO2

Hydrogen sulfide - H2S

Ethanol - C2H6O

Explanation:

Those are some atoms with polar covalent bonds. Hope this helps!!

8 0

4 years ago

During the experiment, scientists noted that several of the reaction beakers became hot to the touch. All of the following react

Basile [38]

During the experiment, scientists noted that several of the reaction beakers became hot to the touch. All of the following reactions could cause this result except endothermic and positive ∆H experiments.

<u>Explanation:</u>

If the beakers are becoming hot during experimentation, then that means the energy is being released from the reactants during this experiment. As the energy is being released that enthalpy change will also be negative as the enthalpy change is calculated as the difference of enthalpy of reactants from products.

So in these cases, heat is released making the beakers hot. So for the exceptional case, the experiment should be endothermic in nature and positive enthalpy change should be there in the experiment. Such that the heat will not be released leading to no heating of beakers.

4 0

3 years ago

An aluminum cup of 140 cm3 capacity is completely filled with glycerin at 20°C. How much glycerin will spill out of the cup if t

mel-nik [20]

Explanation:

The given data is as follows.

coefficient of volume expansion of glycerin ( $\beta$ ) = $5.1 \times 10^{-4} 1/^{o}C$