Question

In an experiment, 3.672 g of copper oxide gave, on reduction, 2.938 g of copper. What is mass of oxygen formed? What is the ratio of masses of copper and oxygen? (A) 0.634 g. 4:1 (B) 0.534 g 1:4 (C) 0.734 g 4:1 (D) 0.934 g 1:4​

Answer 1

Answer:

In another experiment 3.672 g of copper oxide gave, on reduction, 2.938 g of copper. Show that these figures verify the law of constant proportions. From the above calculations we can see that the ratio (or proportion) of copper and oxygen elements in the two samples of copper oxide compound is the same 4:1.

Explanation:

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Answer 2

Explanation:

We generally use these words in groups; as, ... A Preposition is a word used with a noun or a pronoun to show ... So also we can speak of what persons do or feel apart