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Mashcka [7]
2 years ago
7

Describe the motion of molecules in an ice cube and in a radiator in winter

Chemistry
2 answers:
Reika [66]2 years ago
8 0

Did your answers include these concepts?

Molecules in an ice cube have lower kinetic energy than molecules in a radiator.

Molecules in an ice cube move more slowly than molecules in a radiator. They collide with less force than molecules in a radiator.

When in direct contact, the fast-moving molecules in the radiator collide with the slow-moving molecules in the ice cube.

Kinetic energy is transferred from the molecules in the radiator to the molecules in the ice cube, causing a slowdown of the radiator molecules and an acceleration of the ice molecules.


pantera1 [17]2 years ago
6 0
<span>ice cube have lower kinetic energy that molecules in a radiators</span>
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The mineral enargite is 48.41% cu, 19.02% as, and 32.57% s by mass. what is the empirical formula of enargite?
Firlakuza [10]
Answer is: <span>the empirical formula of enargite is Cu</span>₃AsS₄.<span>
If we use 100 grams of enargite:
n(Cu) = 48,41 g </span>÷ 63.55 g/mol.
n(Cu) = 0.761 mol.
n(As) = 19.02 g ÷ 74.92 g/mol.
n(As) = 0.254 mol.
n(S) = 32.57 g ÷ 32.065 g/mol.
n(S) = 1.016 mol.
n(Cu) : n(As) : n(S) = 0.761 mol : 0.254 mol : 1.016 mol / 0.254.
n(Cu) : n(As) : n(S) = 3 mol : 1 mol : 4 mol.
4 0
3 years ago
Water learned in science class that different substances release heat at different rates. He decides to test this. At home, Walt
Shalnov [3]

Answer:

The correct answer will be

Test variable or dependent variable- The time required to melt the ice cube

Explanation:

In a scientific experiment, three types of variables are kept and studied which includes: The independent variable, dependent variable and the constant variable.

Among these three, the variable to be tested is known as the dependent variable which is influenced by the independent variable which changes.

In the given question, since the experiment was performed to test the rate of the release of heat by a different substance which could be tested by measuring the rate or time required to melt the ice cube which depends on the type of casserole.

Thus, the time required to melt the ice cube is the correct answer.

7 0
3 years ago
Read 2 more answers
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Natural gas (47%)
Renewables - Solar (14%)

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2 years ago
A ________ alchohol has a -OH radical bonded to a central carbon atom.
o-na [289]
The answer is secondary
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2 years ago
What happens to a substance when it becomes oxidized? reduced??
zzz [600]
Oxidation is the loss of electrons. Reduction is the gain of electrons. The oxidizing agent is reduced. The reducing agent is oxidized. Cu goes from 0 to +2, it lost electrons S went from +6 to +4, it gained electrons I went from 0 to +5, it lost electrons N went from +5 to +4, it gained electrons.
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3 years ago
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