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tino4ka555 [31]
3 years ago
15

Which substance will release the greatest amount of heat when 1.00 mol is frozen?

Chemistry
2 answers:
ahrayia [7]3 years ago
6 0
The appropriate response is Benzene. Benzene is a standout amongst the most generally utilized chemicals required in assembling items we use once a day, for example, cleansers, plastic and elastic. In this lesson, we will take in more about the structure, equation and different employments of benzene.
evablogger [386]3 years ago
5 0
B. Bezene because B
The higher the Hfus , the higher the amount of heat released.
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An aluminum sample has a mass of 80.01 g and a density of 2.70 g/cm3. According to the data, to what number of significant figur
notsponge [240]
Not 100% sure, but I'd have to say this:

When rounding for sig figs, you look at the other numbers in your calculation and see which one has the least amount of sig figs. This number is 2.70. (3 sig figs). So, you round to 3 significant figures in your calculation.

Hope this helped!
6 0
3 years ago
Read 2 more answers
How much energy is needed when 1.27 moles of sulfur reacts with excess
pav-90 [236]

Answer:

well what do you think it is

Explanation:

huh?..

6 0
3 years ago
Identify the limiting reactant when 6.45 g of O2 gas reacts with 1.13 g of H2 gas to produce liquid water.
sergeinik [125]

Answer:

Oxygen is the limiting reactant

Explanation:

2H2 +    O2 ⇒     2H2O

2mol      1mol        2mol

2moles of hydrogen will require 1mol of oxygen to produce 2mol of water

in the question, 6.45g of O2 reacts with 1.13g of H2.

molar mass of O2 = 16*2 =32g/mol

molar mass of H2 = 1*2=2g/mol

number of moles of O2 = mass/molar mass

                                      = 6.45/32

                                     =0.20156moles

number of moles of H2 = 1.13/2

                                   =0.565moles

but 0.20156moles of O2 will require 0.40312moles of hydrogen

2H2          +        O2        ⇒       2H2O

2mol                  1mol                 2mol

0.40312mole    0.20156mol

0.40312moles is less than 0.565moles of H2 present, which means hydrogen is in excess hence implying that oxygen is the limiting reactant

3 0
4 years ago
Why is water sometimes called the ""universal solvent?"".
Marysya12 [62]

Answer:

Water is called the universal solvent because more substances dissolve in water than in any other chemical. This has to do with the polarity of each water molecule. The hydrogen side of each water (H2O) molecule carries a slight positive electric charge, while the oxygen side carries a slight negative electric charge.

Explanation:

3 0
3 years ago
What are the units of k in the following expression: rate = k [A][B]?
Aleks04 [339]
The answer is B since it's a second order reaction.
8 0
3 years ago
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