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STatiana [176]
3 years ago
6

When metals combine with non metals , the metallic atom tend to

Chemistry
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer: Lose electrons forming - bonds.

Explanation:

Site- https://quizlet.com/23652260/chapter-17-elements-and-their-properties-flash-cards/

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The melting point of phenol is 40.5∘C and that of toluene is −95∘C. What is the best explanation for this difference? Select the
romanna [79]

Answer:

None of the above

Explanation:

The (−OH) group on phenol can form hydrogen bonds, and the −CH3 group on toluene cannot.

Phenol has only one hydrogen on the −OH group available to form hydrogen bonds, so the hydrogen bond is stronger. In toluene, the hydrogen bond is spread over all three hydrogens on the methyl group, so the interaction is weaker overall.

Phenol has a higher molecular mass than toluene.

3 0
3 years ago
Read 2 more answers
Use this balanced equation to help you solve:
valentina_108 [34]

1. 842g of NaOH will form 547.3 g of Al(OH)₃

2. The yield is 93.55%

<u>Explanation:</u>

3NaOH + Al → Al(OH)₃ + 3Na

1.

Molar mass of NaOH = 40 g/mol

Molar mass of Al = 27 g/mol

Molar mass of Al(OH)₃ = 78 g/mol

According to the balanced equation:

3 moles of NaOH requires 1 mole of Al to form 1 mole of Al(OH)₃

The ratio of NaOH : Al : Al(OH)₃ = 3 : 1 : 1

3 X 40 g of NaOH reacts with 27 g of Al to form 78 g of Al(OH)₃

120 g of NaOH + 27g of Al → 78 g of Al(OH)₃

120g of NaOH form 78g of Al(OH)₃

1g of NaOH will form \frac{78}{120} g of Al(OH)₃

842g of NaOH will form \frac{78}{120} X 842 g of Al(OH)₃

                                   = 547.3 g of Al(OH)₃

Therefore, 842g of NaOH will form 547.3 g of Al(OH)₃

2. Only 512 g of Al(OH)₃ is formed

Yield % = ?

Yield = \frac{512}{547.3} X 100\\\\Yield = 93.55

Therefore, the yield is 93.55%

5 0
3 years ago
The combustion of propane (C3H8) produces CO2 and H2O: C3H8(g) 5O2(g)→3CO2(g) 4H2O(g) The reaction of 2.5 mol of O2 with 4.6 mol
Masja [62]

Answer: 2 moles of water.

Explanation:

C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

Given moles:

moles of oxygen = 2.5

moles of C_3H_8 = 4.6

According to stoichiometry:

5 moles of oxygen reacts with = 1 mole of propane

Thus 2.5 moles of oxygen will react with = \frac{1}{5}\times 2.5=0.5 moles of oxygen

Thus propane is the limiting reagent as it limits the formation of products and oxygen is the excess reagent.

As 1 mole of propane produce = 4 moles of water

0.5 mole of propane will produce =\frac{4}{1}\times 0.5=2moles of water

Thus 2 moles of water are produced.

5 0
3 years ago
If ammonia were formed from Daltons simplest formula of one atom of each element what would he have concluded about the relative
professor190 [17]
He would hv concluded that the ratio of the masses of nitrogen to sulphur is in the ratio 1 :3
5 0
3 years ago
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Who is john dalton,jj Thompson
Gre4nikov [31]

Atomic Theory. In 1897, English physicist J. J. Thomson (1856–1940) disproved Dalton's idea that atoms are indivisible. ... One of those parts is a negative tiny particle, which Thomson called a corpuscle in 1881.

Hope this is what you were looking for!

7 0
3 years ago
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