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labwork [276]
3 years ago
10

How many elements have been discovered? A. 110 B. less than 110 C. more than 110

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
8 0
There are 115 known elements as of today (Feb. 13, 2016)

so, 'C' is the correct answer
Ivenika [448]3 years ago
6 0
C. more than 110. We have 115 elements known for Feb 2016.
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Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2
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Given the following equation; Cu + 2AgNO3 = Cu(NO3)2 + 2Ag, 48.97 grams of Cu are needed to react with 262g of AgNO3.

<h3>How to calculate mass of substances?</h3>

The mass of a substance can be calculated using the following steps:

Cu + 2AgNO3 = Cu(NO3)2 + 2Ag

1 mole of Cu react with 2 moles of AgNO3

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