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lora16 [44]
3 years ago
11

Why did Mendeleev leave gaps

Chemistry
1 answer:
uysha [10]3 years ago
7 0
Mendeleev left gaps in the periodic table because, in the future, he knew that there would be more elements to be discovered because not all elements were discovered at the time.
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Which term describes “one or more cells that carry out all of the processes needed to sustain life”?
Sergio039 [100]

Answer:

B. Organism

Explanation:

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How is the information about cats found in myths and fairy tales and legends different from information gathered through science
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Scirnce uses a method of testing to declare rules or facts. myth and fairy tales have no way of being tested. cats are a physical creature we can see, test, and observe. a mythical idea canny be tested. for example: mermaids cannot be tested as we have none to observe.
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What type of wave travels quickly through solid, liquid, and gas?
jarptica [38.1K]

Answer: sound waves

Explanation: Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solid

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3 years ago
Which of the following ratios are needed to determine the mass of oxygen produced from the decomposition of 10 grams of potassiu
Zielflug [23.3K]

The ratios which are needed to determine the mass of oxygen produced from the decomposition of 10 grams of potassium chlorate are;

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  • 112.55 g KClO31 mole KClO3

From stoichiometry;

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3 moles of oxygen requires 2 moles of KClO3 to be produced.

And from molar mass analysis;

  • 31.998 g O2 is equivalent to 1 mole O2
  • O2112.55 g KClO3 is equivalent to 1 mole KClO3

Read more:

brainly.com/question/9920155

7 0
2 years ago
Which substance is an example of a nonpolar compound?(1 point)
Tatiana [17]
The answer is B - vegetable oil.

Explanation:

The properties of liquids depend on the attractions the molecules of the liquid have for each other and for other substances.

Liquids can dissolve certain other liquids, depending on the attractions between the molecules of both liquids.

Polar liquids, like water, dissolve other liquids which are polar or somewhat polar.

Polar liquids, like water, do not dissolve non-polar liquids like oil.
8 0
3 years ago
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