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brilliants [131]
2 years ago
8

Which of the following is an element? A. Steel B. Sodium chloride C. Fire D. Carbon

Chemistry
2 answers:
Vikki [24]2 years ago
8 0

Answer:

<h3><em>Which of the following is an element?</em></h3><h3><em>=</em><em>⟩</em><em>C</em><em>a</em><em>r</em><em>b</em><em>o</em><em>n</em><em> </em><em>is </em><em>an </em><em>element</em><em> </em><em>.</em></h3>

<em>Explanation</em><em>:</em><em>-</em>

  • <em>Carbon</em><em> </em><em>is </em><em>an </em><em>element</em><em> </em><em>having</em><em> </em><em>atomic </em><em>number</em><em> </em><em>6</em><em> </em><em>and </em><em>atomic</em><em> </em><em>mass</em><em> </em><em>1</em><em>2</em><em> </em><em>.</em>
  • <em>c </em><em>is </em><em>the </em><em>symbol</em><em> </em><em>to </em><em>represent</em><em> </em><em>carbon </em><em>.</em>

<em>hope </em><em>it</em><em> </em><em>is </em><em>helpful</em><em> to</em><em> you</em>

Kisachek [45]2 years ago
6 0
Carbon is the answer D
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True or false if an object displaces 50 ml of water the object's volume is 50mL
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Answer:

True

Explanation:

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3 years ago
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As the population in a small town grows, a new water treatment plant is built. The plant is built on a local river where it can
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Explanation:

7 0
3 years ago
his is the chemical formula for epinephrine (the main ingredient in adrenaline): C9H13O3N A biochemist has determined by measure
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Answer:

3.67 moles of N

Explanation:

The epinephrine's chemical formula is: C₉H₁₃O₃N

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We must know that 9 moles of C are in 1 mol of C₉H₁₃O₃N so, let's make a rule of three:

If 9 moles of C are found in 1 mol of C₉H₁₃O₃N

Therefore 33 moles of C must be found in (33 .1) / 9 = 3.67 moles of C₉H₁₃O₃N

There is a second rule of three, then.

In 1 mol of C₉H₁₃O₃N we have 1 mol of N

Then, 3.67 moles C₉H₁₃O₃N must have (3.67 . 1) / 1 = 3.67 moles of N

Remember 1 mol of C₉H₁₃O₃N has 9 moles of C, 13 moles of H, 3 moles of O and 1 mol of N

5 0
3 years ago
An isopropyl solution contains 70 ml of isopropyl alcohol in 1.8 L of water. What is the percent by volume of the alcohol
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3.74%

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Take the ratio of the isopropyl alcohol (IPA) volume to the total volume of the solution, which is 1800 mL of water+ 70 mL of IPA,

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5 0
3 years ago
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