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4 years ago

Are points A, B, and C collinear? How do you know?

1 answer:

8 0

In general, three points A, B and C are collinear if the sum of the lengths of any two line segments among AB, BC and CA is equal to the length of the remaining line segment, that is, either AB + BC = AC or AC +CB = AB or BA + AC = BC. This is from google so make sure to paraphrase

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A student makes a cross-section clay model to represent the internal structure of a volcano that leads to the formation of two r

Murrr4er [49]

CAnswer:

Explanation:

6 0

3 years ago

8. FOR BRAINLIST!!!

Ne4ueva [31]

I think it's either b or c

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3 years ago

Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. What formulas did she writ

sp2606 [1]

Explanation:

Sodium has atomic number of 11 and its electronic configuration is given by:

$[Na]=1s^22s^22p^63s^1$

The nearest stable electronic configuration to sodium is of the neon. So, in order to attain stability of noble gas it will loose its single electron.

$Na\rightarrow Na^++1e^-$

$[Na^+]=1s^22s^22p^63s^0$

Sodium has single valency that is 1.

Let nbe the valency of the ion 'X'

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

$Na_nX_1$

So, the formulas for all the possible compounds that sodium can form with the other ions will be:

$Na_nX_1$

4 0

4 years ago

Give the name for H3PO3 oxyacid

Nana76 [90]

Answer:

The answer to your question is: Phosphorous acid

Explanation:

Phosphorous can form 2 main acids

H₃PO₃ is called phosphorous acid

H₃PO₄ is called phosphoric acid

6 0

4 years ago

What is the difference between the orbital periods of Mercury and Earth?

d1i1m1o1n [39]

The correct answer is B. The difference between the orbital period of planets Mercury and Earth is 0.76 years. The orbit of mercury is the most eccentric among the planets in the Solar system and the smallest planet. It has an orbital period of 88 Earth days.

8 0

3 years ago

Read 2 more answers