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Vika [28.1K]
3 years ago
6

Which of the following is the best hypothesis?

Chemistry
1 answer:
torisob [31]3 years ago
8 0

Answer:

b

Explanation:

i think it is b

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11.9 g Cl2 is reacted with 10.7 g NaOH. How many moles of NaCl are produced?
melisa1 [442]

Answer:

1. 7.256g of NaCl

2. 47.33g of Cl2

Explanation:

2 moles of Na reacts to produce 2 moles of NaCl

8 moles of Na will still produce 8 moles of NaCl

Mass of NaCl = molar mass of Nacl/moles of Nacl

=58.5/8

=7.256g of NaCl

From the equation, 2 moles of Na reacts with 1 mole of Cl2

3/2 moles of Cl2 will react with 3 moles of Na

Mass of Cl2 = 71/1.5

=47.33g of Cl2

Explanation:

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What did ancient astronomers think areas of the moon called mares might be?
RUDIKE [14]

Answer: seas

Explanation:

The ancient astronomers thought the mares on the moon were seas.

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The intensity of a sound wave increases as the wave spreads out from the source of the sound
Alex

Answer:

The more spread out their energy becomes

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What types of properties change during a chemical reaction?
ryzh [129]
The chemical composition 

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when a compound containing c h and o is completely combusted in air what reactant besides the hydrocarbon is involved in the rea
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When a compound containing C, H and O is completely combusted in air what reactant besides the hydrocarbon is involved in the reaction is Oxygen.

<h3>What is hydrocarbon?</h3>

A hydrocarbon is an organic molecule composed completely of hydrogen and carbon in organic chemistry. Group 14 hydrides include hydrocarbons. Hydrocarbons are often colourless and hydrophobic, with scents that are weak or exemplified by gasoline and lighter fluid. They exist in a wide range of molecular forms and phases, including gases (like methane and propane), liquids (like hexane and benzene), low melting solids (like paraffin wax and naphthalene), and polymers (such as polyethylene and polystyrene). Hydrocarbon refers to naturally occurring petroleum, natural gas, and coal, as well as their hydrocarbon derivatives and refined forms, in the fossil fuel industry. The primary source of energy on the planet is the combustion of hydrocarbons.

To learn more about hydrocarbons visit:

brainly.com/question/17578846

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