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ki77a [65]
4 years ago
13

Why does iron not fit the pattern in column 7

Chemistry
1 answer:
son4ous [18]4 years ago
3 0
Iron doesn't fit because it doesn't have enough atoms or protons in its nucleus so there for it belongs in column 2. <span />
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Why does the study of science have limitations
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Science doesn't make moral judgments, doesn't make aesthetic judgments, doesn't tell you how to use scientific knowledge, doesn't draw conclusions about supernatural explanations. So that's why I think it has limitations.

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A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is
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But what is the width of the molecule
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How does knowing the reactants and ______ help you classify a chemical reaction ?
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The products. Without a balanced chemical equation, there is no reaction that can take place. The products is the final reation and the reactants help the final reaction take place. 
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3 years ago
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What is the percent mass oxygen in calcium carbonate (CaCo3)?
Gnoma [55]
  <span>Step 1 is to determine the mass of each part 
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Step 4 is to double check by adding all percentages. If they equal 100, then I probably did it right. :) 
40.04 
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</span>
4 0
3 years ago
Read 2 more answers
If one mole of a substance has a mass of 56.0 g, what is the mass of 11 nanomoles of the substance? Express your answer in nanog
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Answer:

616,0 ng is the right answer.

Explanation:

You should know that 1 mole = 1 .10^9 nanomoles

Get the rule of three.

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11 nanomoles .....................

(11 x 56) / 1 .10^9 nanomoles = 6.16 x 10^-7 gr

Let's convert

6.16 x 10^-7 gr x 1 .10^9 = 616 ngr

8 0
3 years ago
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