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viva [34]
4 years ago
9

Match each pH value with the correct description. 7, 2, 8, 13, and 6 :)

Chemistry
1 answer:
bazaltina [42]4 years ago
8 0
1.strong acid: 2
2.weak acid:6
3.strong base:13
4.weak base:8
5.neutral:7
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The atoms of most elements are reactive. Describe atoms that are
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The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell
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When you can not see what is taking place, but other senses indicate occurences. this is called?
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6 0
3 years ago
Give an example of how microorganisms might meet each of the challenges of life
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3 years ago
A chemistry student weighs out 0.027 kg of an unknown solid compound X and adds it to 550. mL of distilled water at 30.° C. Afte
QveST [7]

Answer:

1. Yes

2.The solubility of X is 34.55g/L

Explanation:

Solubility of  solute refers to how readily a solute will dissolve in a solvent at a particular temperature. Its the amount of moles or grams required to saturate 1dm^{3} or 1 Litre of water.

From the problem, when the liquid was drained off and amount of X which didn't dissolve was measured, it weighed 0.008kg, this means out of 0.027kg, 0.027-0.008 actually dissolved

= 0.019kg*1000 = 19g.

if 19g is required to saturate 550mL at 30°C,

then\frac{19*1000}{550} will saturate 1L

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The solubility thus is 34.55g/L

 

5 0
3 years ago
Nitrogen (N) needs three more electrons to fill its outermost energy level. What is the number of electrons that Nitrogen (N) ha
Georgia [21]

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6 0
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