Answer:
I think B
Explanation:
Red litmus paper is used more to find bases, blue litmus paper changes better when coming to find acids. So I believe it is B
The last statement is correct...
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Answer: 1.00×10^26=1000×10^23
1000×10^23/6.022×10^23=166.05×10^23 moles of water.
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Explanation:
Answer:
The Answer is option D
Explanation:
The nucleus of a radioactive element is unstable. The nucleus will break down over time, reducing the amount of the element remaining.
Answer:
The molarity is 0,35M
Explanation:
The molartity is moles of compound in 1 liter of solution :
20 L----------7moles compound
1 L..-----------x= (1L x7 moles compound )/20L= 0,35 moles compound--> 0,35M