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castortr0y [4]
3 years ago
10

Using the model of the periodic table, which two elements pictured have similar chemical properties?

Chemistry
2 answers:
dusya [7]3 years ago
7 0
1 and 3 because they are in the same column and have similar properties. hope this helps :)
Murljashka [212]3 years ago
5 0

Answer:

1 and 3

Explanation:

The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.

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Which example is not a structural adaptation of a plant? A. curling around a tree trunk B. protecting itself with thick bark C.
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A. curling around a tree trunk

I believe would be the correct answer because it is not an adaptation that it has gained through evolution and it is something that happens after the plant has grown.

3 0
3 years ago
Write dissociation equations for the following soluble salts dissolving in water. Then draw a particle - level representation fo
zhuklara [117]

Answer:

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Explanation:

The following pictures shows that the dissociation of one particle of NaBr produces one particle of Na+ (sodium cation) and one particle of Br- (bromine anion).

The dissociation of one particle of ZnCl2 produces one particle of Zn+2 (Zinc cation) and two particles of Cl- (chlorine anion).

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3 years ago
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Sergeeva-Olga [200]
Answer is: <span>mass of water is 6.07 kilograms.
</span>b(NaOH) = 1.35 m.
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m(H₂O) = 8.20 mol ÷ 1.35 mol/lg.
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m - molality.
n - amount of substance.
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The United States is one country that does not fully use the metric system for measurement.
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Answer: yes

Explanation:

6 0
2 years ago
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\begin{aligned} -5x+4y &= 3\\\\ x&=2y-15 \end{aligned}

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