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3 years ago

Compared to the nonmetals in Period 2, the metals in Period 2 generally have larger

1 answer:

6 0

The answer is atomic radii; the size or radii of an atom increases from left to right, versus the ionization energies and electronegativities of atoms which increase from right to left.

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A 2.40 kg block of ice is heated with 5820 J of heat. The specific heat of water is 4.18 J•g^-1•C^-1. By how much will it’s temp

MrMuchimi

Answer: The temperature rise is $0.53^0C$

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

$Q=m\times c\times \Delta T$

Q = Heat absorbed by ice = 5280 J

m = mass of ice = 2.40 kg = 2400 g (1kg=1000g)

c = heat capacity of water = $4.18J/g^0C$

Initial temperature = $T_i$

Final temperature = $T_f$

Change in temperature , $\Delta T=T_f-T_i=?$

Putting in the values, we get:

$5280J=2400g\times 4.18J/g^0C\times \Delta T$

$\Delta T=0.53^0C$

Thus the temperature rise is $0.53^0C$

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3 years ago

A student is trying to solve the following problem by selecting the tile shown.

Vlad [161]

In my opinion, the correct answer among the choices presented above is option D. A student is trying to solve the following problem by selecting the tile shown. With this method, t<span>here is nothing wrong. The problem is ready to be solved.

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3 years ago

Why are fewer organisms found as you move up the food chain?

Nina [5.8K]

Are there choices we should be choosing from? Or do you just want an explanation?

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2 years ago

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Each element can be indentified by the number of _______ found in its nucleus, which also equals the elements _______ _______.

Monica [59]

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2 years ago

Please help! Four different people are using sound wave technology. Which describes the form of technology most likely being use

Andru [333]

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The correct answer is option D

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2 years ago