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3 years ago

A square painting has a length of 62 cm. What is the area of the painting? cm²

Chemistry

1 answer:

svetlana [45]3 years ago

3 0

Answer:3844 cm^2

Explanation:

62 squared since it is a square, and area is base times height

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Which is greater 50 degree celcius or 50 degree fahrenheit?with solution plz.....

zheka24 [161]

Answer: 50 degrees Celsius is hotter than 50 degrees F. 50 degrees Celsius is half way between freezing and boiling

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2 years ago

How do the process of crabon cycle contribute to climate change.

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Explanation:

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3 years ago

Which element has properties most similar to Bromine? <br> A) F <br> B) Kr <br> C) S <br> D) Se

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Fluorine (F) will have properties similar to Bromine (Br) because it belongs to the same group as Bromine.

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3 years ago

Read 2 more answers

Why is the answer C for this problem?

pshichka [43]

Answer:

$\boxed{\text{(C) X}$_{3}$P$_{2}}$

Explanation:

Step 1. Identify the Group that contains X

We look at the consecutive ionization energies and hunt for a big jump between them

$\begin{array}{crc}n & IE_{n} & IE_{n} - IE_{n-1}\\1 & 730 & \\2 & 1450 & 720\\3 & 7700 & 6250\\4 & 10500 & 2800\\\end{array}$

We see a big jump between n = 2 and n = 3. This indicates that X has two valence electrons.

We can easily remove two electrons, but the third electron requires much more energy. That electron must be in the stable, filled, inner core.

So, X is in Group 2 and P is in Group 15.

Step 2. Identify the Compound

X can lose two valence electrons to reach a stable octet, and P can do the same by gaining three electrons.

We must have 3 X atoms for every 2 P atoms.

The formula of the compound is $\boxed{\text{X}$_{3}$P$_{2}}$}$ .

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3 years ago

Why does the particle of water at 0 degree celcius have more energy as cimparrd to the particles in ice at the same temperature?

jekas [21]

There is Kinetic energy involved in the state something is in. The molecules in a liquid are moving around quicker than those in a solid.

That's one reason.

The ice requires energy to melt. Bonds must be broken to get from a solid to a liquid.

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3 years ago