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PtichkaEL [24]
3 years ago
6

Someone pls help with this

Chemistry
1 answer:
Anettt [7]3 years ago
5 0
Question 3 is uniformitarianism
Question 4 is sedimentary rock
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(g solute/g solution)*100 = % mass/mass

30 g / 400 * 100 

0,075 * 100

= 7,5% w/w

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