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Nastasia [14]
2 years ago
11

Help me answer these questions

Chemistry
2 answers:
kompoz [17]2 years ago
8 0
For the first one I think it’s A, and I think the second one is C. Those seem most logical.
nirvana33 [79]2 years ago
3 0

Answer:

3.

a.climate

4.

c.average measurements of temperature and rainfall over many years

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HELP!! Please (: I can’t figure out the answers
MrRa [10]
I believe I know the answer to #4
ANSWER: Two moles to a first approximation
*Disclaimer* I'm pretty sure I'm right, but I could be wrong
5 0
3 years ago
What is isotope <br>the percentage of the solid components of soil​
zubka84 [21]

Answer:

an isotope consists of two or more forms of the same elements that contains equal number of protons but different number of neutrons in their nuclei but differ in relative atomic mass but not in chemical properties

The percentage of soil components of the soil is: inorganic components

-soil particles

-mineral elements = 45%

-water or moisture= 25%

- air= 25%

organic components

-humus or decayed organic matter= 5%

-living organisms

4 0
3 years ago
The teal line of the hydrogen emission spectrum has a wavelength of 486.0 nm. A hydrogen emission spectrum has a violet, a blue,
Sloan [31]

Answer:

The correct answer to the following question will be "4.08 × 10⁻¹⁹ Joule".

Explanation:

Given:

Wavelength, λ = 486.0 nm

As we know,

E=h\upsilon =\frac{hc}{\lambda}

On putting the estimated values, we get

⇒          =\frac{1241.5 \ ev\ nm}{486 \ nm}

⇒          =2.554 \ ev

∴ 1 ev = 1.6 × 10⁻¹⁹ J

Now,

Energy, E=2.554\times 1.6\times 10^{-19}

⇒               =4.08\times 10^{-19} Joule

7 0
3 years ago
Semi-conductors have properties of both metals and non metals.which are two examples of metalloids
balu736 [363]
The six metalloids are boron, silicon, germanium, arsenic, antimony, and tellerium.
7 0
3 years ago
An atom of titanium has 22 protons and 26 neutrons. If the atoms loses one electron, what will be the charge on the ion that for
Alja [10]
It’s +21 (c) if i answered late my apologies
5 0
3 years ago
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