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3 years ago

Rosa drew a flow chart of the carbon cycle.

Chemistry

2 answers:

iVinArrow [24]3 years ago

8 0

The answer would be A! :)

Lisa [10]3 years ago

7 0

The correct Answer is A.

The Flow chart of the Carbon Cycle, will look as follows:

1. Carbon dioxide in the atmosphere.

2. Producers undergo photosynthesis (in this process plants among other producers like algae, use CO2 to produce energy).

3. Consumers eat producers (a primary level of consumer like a rabbit eats the producers or plants).

4. Decomposers return Carbon to the soil and release waste.

And the cycle continues again, by going back to step 1.

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raketka [301]

Answer:

luster means either sheen/glow or reflected light

Explanation:

luster is the appearance of mineral's surface in terms of light-reflective qualities

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3 years ago

Determine the empirical formula for a compound that contains 48.6%C, 8.2% H, and 43.2% S by mass.

vagabundo [1.1K]

The empirical formula for a compound that contains 48.6%C, 8.2% H, and 43.2% S by mass is $C_3H_6S$ .

<h3>What is the empirical formula?</h3>

An empirical formula tells us the relative ratios of different atoms in a compound.

We need to calculate the number of moles

Number of a mole of carbon =

48.6 g X ( $\frac{1 mole }{ 12.0107 g}$ ) =4.05 mole

Number of a mole of hydrogen =

8.2g X ( $\frac{1 mole}{.00784g}$ ) =8.14 mole

Number of moles of sulphur =

43.2g X ( $\frac{ mole}{32.065g}$ ) = 1.35 mole

Dividing each mole using the smallest number that is divided by 1.35 moles.

Carbon= $\frac{4.05 mole }{1.35 mole}$ =3

Oxygen= $\frac{8.14 mole}{1.35 mole}$ =6

Sulfur= $\frac{1.35 mole}{1.35 mole}$ =1

Empirical formula is $C_3H_6S$

Learn more about empirical formula here:

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2 years ago

Part a what happens to these physical properties as the strength of intermolecular forces increases? drag each item to the appro

bearhunter [10]

1. Melting point is the temperature at which the solid turns to liquid. In order to reach this point, the intermolecular forces of the solid must be broken so that it would incorporate the molecular arrangement of a liquid. So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher melting points.

2. Vapor pressure is the pressure exerted by the gas above its solid or liquid substance. It is closely related to volatility, which is the ability of the substance to convert from liquid to gas at a certain temperature. The stronger the intermolecular force, the less volatile the substance is which is manifested in increasing vapor pressure.

3. Boiling point has the same concept as melting point, but the change is from liquid to gas. So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher boiling points.

4. Viscosity is the ease of fluidity. Solids, which have stronger intermolecular forces are not viscous at all. So, the stronger the intermolecular forces, the viscosity decreases.

5. Surface tension is the force the substance exerts near its surface or interface. The stronger the intermolecular force, the stronger the surface tension. 

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3 years ago

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Uranium-238 decays very slowly.its half-life is 4.47 billion years.

coldgirl [10]

13.4 billion years is 3 times of the half-life, 4.47 billion years. So the Uranium-238 will go through three times of half decay. So the remain percentage will be 50%*50%*50%=12.5%.

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3 years ago

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How many moles of glucose (C6H12O6) are in 5.0 liters of a 2.5 M C6H12O6 solution?

Vaselesa [24]

5*2.5 = 12.5 ≈ 13 moles

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3 years ago

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