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2 years ago

1. Define anthracite.

Chemistry

2 answers:

AnnZ [28]2 years ago

7 0

Answer:

Antharacite refers to a hard coal of hard variety that contains relatively pure carbons ...

faltersainse [42]2 years ago

6 0

Answer:

a hard natural coal of high luster differing from bituminous coal in containing little volatile matter and in burning very cleanly is called anthracite . called also hard coal

Explanation:

Answer from Gauth math

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What is the boiling point of a 1.5 m aqueous solution of fructose? the boiling point elevation constant of water is 0.515Â°c/m.

Ronch [10]

Answer is: <span>he boiling point of a 1.5 m aqueous solution of fructose is </span>100.7725°C.
The boiling point elevation is directly proportional to the molality of the solution according to the equation: ΔTb = Kb · b.<span>
ΔTb - the boiling point elevation.
Kb - the ebullioscopic constant. of water.
b - molality of the solution.
Kb = 0.515</span>°C/m.
b = 1.5 m.
ΔTb = 0.515°C/m · 1.5 m.
ΔTb = 0.7725°C.
Tb(solution) = Tb(water) + ΔTb.
Tb(solution) = 100°C + 0.7725°C = 100.7725°C.

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3 years ago

The nutrition label on a bottle of cola reports that a 8.0 fl oz serving contains 25 g of sugar. How many kilograms of sugar are

Sedbober [7]

Answer:

0.21 kg

Step-by-step explanation:

Volume of cola = 2.0 L × (33.8 fl oz/1L)

= 67.6 fl oz

Grams of sugar = 67.6 fl oz × (25 g sugar/8.0 fl oz)

= 210 g sugar

Kilograms of sugar = 210 g × (1 kg/1000 g)

= 0.21 kg

7 0

2 years ago

How many grams are in 2.5 moles of Carbon

Jet001 [13]

According to the periodic table, carbon's molar mass is 12.011 grams per mole (that's the small number under the element). So, just multiply like this to get the answer:

$(2.5\ mol\ C)(\frac{grams\ C}{12.011\ mol\ C})=0.20814\ g\ C$

So, there are approximately 0.208 grams in 2.5 moles of carbon.

6 0

2 years ago

Read 2 more answers

Classify the carbohydrate tagatose by both the carbonyl group and the number of carbon atoms. D-tagatose is sugar with six carbo

Bingel [31]

Answer:

Hexose category and ketohexose category

Explanation:

The classification of the Carbohydrate tagatose by carbonyl group is that it is a monosaccharide and has a hexose structure hence it belongs to the Hexose category

Based on the number of carbon atoms the structure has a ketofunctionality hence it is classified under the ketohexose category

Attached below is the remaining part of the solution

6 0

2 years ago

What is the mass of ether(0.71) which can be put into a beaker holding 130ml

UkoKoshka [18]

D=m/v ⇒ m=d*v

d=density
m=mass
v=volume

d(ether)=0.71 gr/cm³=0.71 gr/ ml
v=130 ml

m=d*v
m=0.71 gr/ml*(130 ml)=92.3 g

Solution: m=92.3 g

6 0

3 years ago

1. Define anthracite.​

1. Define anthracite.