According to the law of conservation of matter, which chemical equation represents a possible chemical reaction?

a. 2na cl2 nacl

b. h2o2 h2o o2

c. 6co2 h2o energy c6h12o6 6o2

d. c2h4o2 nahco3 nac2h3o2 h2o co2

Which of the following atoms acquires the most negative charge in a covalent bond with hydrogen A) C B) Na C) O D) S

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300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

What element has the electron arrangement 2,8,4?

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Name the following compound HClO