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adell [148]
3 years ago
12

Silicon is lustrous and is a conductor of heat and electricity. Which class of elements could this element belong to?

Chemistry
1 answer:
seraphim [82]3 years ago
3 0
Silicon is a
Metalloid
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If the volume occupied by the gas molecules shown below were doubled, what would happen to the pressure they exert? (Assume cons
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Answer:

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A certain radioactive element has a half-life of one hour. If you start with 40.0 grams of the element at noon, how much of the
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a technician mixes 80 ml of a 5% solution with 10 ml of water. what is the final percentage strength of the solution prepared?
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A technician mixes 80 ml of a 5% solution with 10 ml of water.  the final percentage strength of the solution prepared is 40 %.

given that :

8 ml of a 5 % solution mix with 10 ml . that means the 80 mL of 5 % solution is diluted with water of 10 mL

therefore, 80 × 5 = 10 × x %

x % = 40 %

Therefore, the final percentage strength of the solution is 40 %

Thus, A technician mixes 80 ml of a 5% solution with 10 ml of water.  the final percentage strength of the solution prepared is 40 %.

To learn more about percentage strength here

brainly.com/question/17130362

#SPJ4

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