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Katyanochek1 [597]
3 years ago
12

Which of the following is true about two neutral atoms of the element gold? (1 point) The nucleus is missing in both. Each has a

different mass. Both have the same properties. Each has a different number of electrons.
Chemistry
1 answer:
klio [65]3 years ago
5 0

i have the same question idk the anwser tho

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If you have 400 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days? To help
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Answer:

25 grams

Explanation:

You strat off with 400 grams of your substance. By day 14, half has dcayed and you only have 200 grams left. By day 28, there are 100 grams of the substance. On day 42, there are 50 grams left. Finally, on day 56, the substance has been through four half-lives and 25 grams remain.

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During which stage of meiosis is the diploid number of chromosomes reduced to haploid
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What volume would 312g of alcohol occupy
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Answer:

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Explanation:

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So the cyclist went 800+500+1200 m = 2500 m for total distance.

10t =800 leads to t=80 sec

5t=500 leads to t=100 sec

13t = 1200 leads to t = 92.3 sec

total time is 272.3 sec

Average speed for the entire trip is 2500 / 272.3 = 9.18 m/s

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Sodium chloride, NaCl, is formed when a sodium atom transfers its electron to a chlorine atom. The difference in charge between
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The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.

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