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2 years ago

What layers are composed of metals? Choose all that apply. Inner core Outer core Mantle

Chemistry

1 answer:

svlad2 [7]2 years ago

3 0

Answer:

to be honest ask your teacher

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PLEASE HELP ME ASAP: Some students are using samples of different substances for a lab investigation. They plan to observe the p

marin [14]

Answer: S,Fe,O2,Sr, and Al

Explanation: I saw it on quizlet

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3 years ago

Is 334mm bigger than 1 km

Levart [38]

Answer:

no km are bigger

Explanation:than mm

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2 years ago

Which waves can travel through empty space?

bagirrra123 [75]

Answer:

light waves a

Explanation:

because there's all kinds of different light in space if you think about it like the bright stars or the bright moon it's kind of like light it just makes sense when it's traveling for space water waves obviously it's not possible that travels through the air or like on a beach sound waves you can't really cure much in space and mechanical waves is pretty much the action of an object or something like that kind of it's pretty much happens on Earth but light waves happen for like asteroids or shooting stars a comments it happens all the time for space so it makes just perfect sense

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2 years ago

Read 2 more answers

What is the classification of a solution of naoh with a ph of 8.3?

Maksim231197 [3]

Answer:

<u>Alkaline or basic solution </u>(alkaline and basic means the same)

Explanation:

According to the <em>pH</em>, solutions may be classified as neutral, acidic, or alkaline (basic).

This table shows such classification:

pH classification

7 neutral

> 7 alkaline or basic

< 7 acidic

Thus, since the pH of the solution is 8.3, which is greater than 7, the solution is classified as basic (alkaline).

Additionally, you must learn that pH is a logarithmic scale for the concentration of hydronium ions in the solution.

pH = - log [H₃O⁺]

You can calculate the concentration of hydronium ions using antilogarithm properties:

$pH=-log[H_3O^+]\\ \\ {[H_3O^+]}=10^{-pH}\\ \\ {[H_3O^+]}=10^{-8.3}=0.00000000501$

NaOH solutions are alkaline solutions, bases, according to Arrhenius model, because they contain OH⁻ ions and release them when ionize in water.

8 0

3 years ago

Answer pls..... how????

Irina-Kira [14]

Answer:

Explanation:

The definition of words correspond well with the answers I provided and somewhat match with the dictionary definitions.

3 0

3 years ago