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3 years ago

All man-made and most carbon-based compunds are

Chemistry

2 answers:

inessss [21]3 years ago

6 0

Explanation:

Organic compounds are the compounds that consists of chains of carbon atoms.

Most of the compound present in nature are made up of carbon atoms. And it is true that carbon has more number of compounds as compared to any other element.

For example, refined oil that we use for cooking has carbon atoms and it is a man-made product.

Therefore, we can conclude that all man-made and most carbon-based compounds are organic.

Black_prince [1.1K]3 years ago

5 0

Artificial compounds such as charcoal and fire

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A gaseous fuel mixture stored at 747 mmHg and 298 K contains only methane (CH4) and propane (C3H8). When 11.1 L of this fuel mix

Alisiya [41]

Answer:

$M_f=38.8\%$

Explanation:

From the question we are told that:

Pressure $P=747mmHg$

Temperature $T=298K$

Volume $V=11.1$

Heat Produced $Q=780kJ$

Generally the equation for ideal gas is mathematically given by

$PV=nRT$

$n= (747/760) *11.1/ (0.0821*298)$

$n=0.446mol$

Therefore

$x+y=0.446$

$x=0.446-y .....1$

Since

Heat of combustion of Methane=889 kJ/mol

Heat of combustion of Propane=2220 kJ/mol

Therefore

$x(889) + y(2220) = 760 ...... 2$

Comparing Equation 1 and 2 and solving simultaneously

$x=0.446-y .....1$

$x(889) + y(2220) = 760 ...... 2$

$x=0.173$

$y=0.273$

Therefore

Mole fraction 0f Methane is mathematically given as

$M_f=\frac{x}{n}*100\%$

$M_f=\frac{1.173}{0.446}*100\%$

$M_f=38.8\%$

7 0

3 years ago

What is the reactant(s) in the chemical equation below?

butalik [34]

Answer:

C. 3CO(g) + Fe2O3(s)

Explanation:

The substance(s) to the hath left of the arrow in a chemical equation art hath called reactants. A reactant is a substance yond is presenteth at the starteth of a chemical reaction. The substance(s) to the right of the arrow art hath called products. A product is a substance yond is presenteth at the endeth of a chemical reaction

So in this example, 3CO(g) + Fe2O3(s) art the reactants.

The 2Fe(S) + 3CO2(G) art the products.

Desire I holp! Has't a most wondrous day!

Hope I helped! Have a great day!

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2 years ago

Measure out 2.87 moles of sodium chloride (Nacl) into a clean dry cup.

Anettt [7]

Answer: weigh is m = n × M = 2.87 mol × 58.44 g/mol

Explanation: mass = amount of substance × molar mass

M((NaCl) = 22.99 +35.45

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2 years ago

Ionic crystals are typically brittle because distortion of the crystal lattice produces:-

Bess [88]

Answer:

b I my current pls let me known

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2 years ago

When the highest occupied energy level of an atom is completely full of electrons, the atom is _____________________________?

scoundrel [369]

The answer is a valence electron

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3 years ago