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Bumek [7]
3 years ago
7

Help please! I dont understand, and im having a hard time in Science.

Chemistry
2 answers:
DENIUS [597]3 years ago
6 0

I think that's right like this

12345 [234]3 years ago
6 0
It was kinda hard to see where the arrows were pointing at but I tried my best.

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What is the standard cell notation of a galvanic cell made with aluminum and maggnesium?
BartSMP [9]
Mg( s ) | Mg 2+ ( aq ) || Al 3+ ( aq ) | Al( s )
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3 years ago
What are alleles? Are theys ame or different​
arlik [135]

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Kind of like DNA or a part of DNA

Explanation:

They are what make you a person, no they aren't the same

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3 years ago
How many moles are in 1.29x10^24 hydrogen atoms in HF
Nonamiya [84]
We know that, 1 mole of any substance contain 6.022 X 10^23 atoms/molecules.

Thus,  6.022 X 10^23 atoms = 1 mole
Therefore, 1.29x10^24 = \frac{1.29X10^2^4}{6.022X10^2^3}
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Thus, 2.14 moles<span> are present in 1.29x10^24 hydrogen atoms in HF.</span>
7 0
4 years ago
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Ratio of nitrogen gas to helium
GarryVolchara [31]

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1 to 696

The expansion ratio of liquefied and cryogenic from the boiling point to ambient is: nitrogen 1 to 696. liquid helium 1 to 757. argon 1 to 847.

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4 0
3 years ago
Which is an example of a base?a(lemon juice b(baking soda c(an insolator d( water
bija089 [108]

Answer:

b) Baking soda

Explanation:

Baking soda is sodium hydrogen carbonate, NaHCO₃.

It reacts with water according to the equation

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Thus, baking soda is a base because it increases the concentration of hydroxide ions in water.

<em>Water</em> is <em>neutral</em>.

<em>Lemon juice</em> is an <em>acid</em> because it contains citric acid.

An <em>insulator </em>is a substance that does not conduct electricity. Insulators are <em>neither acidic nor basic</em>.

3 0
3 years ago
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