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3 years ago

Carbon never quits. It recycles itself constantly, conserving its mass and energy as it travels from one location to another.

Biology

1 answer:

Andre45 [30]3 years ago

4 0

Answer:

The answer is True.

Earth stores carbon naturally as part of the carbon cycle. When the system is not in equilibrium, it corrects itself. The Earth has been emitting and storing carbon for millions of years, cycling it between sky, sea, soil, and rock. And the law of conservation of matter states that no matter is destroyed, nor created, likewise with energy.

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Water molecules can establish weak ____________ with one another because they are ____________ (have a slightly positive end and

kolbaska11 [484]

Answer:

1.hydrogen bonds

7 0

2 years ago

-<br> Calculate the molar mass of a gas that has a density of 1.55g/L.

VLD [36.1K]

Answer: 39.86 g/mol

Explanation:

Assuming this gas is at a pressure of $0.99 atm$ and a temperature of $37 \°C+273.15=310.15 K$ , we can solve this problem with the Ideal Gas Law equation:

$P.V=n.R.T$ (1)

Where:

$P=0.99 atm$ is the pressure of the gas

$V$ is the volume of the gas

$n$ the number of moles of gas

$R=0.0821 \frac{atm.L}{mol.K}$ is the gas constant

$T=310.15 K$ is the absolute temperature of the gas in Kelvin

On the other hand, we know the density $\rho=1.55 g/L$ is given by a relation between the mass $m$ and the volume $V$ :

$\rho=\frac{m}{V}$ (2)

Then, the mass is:

$m=\rho V$ (3)

Another important fact here is that the molar mass $M_{mass}$ of an element is given by a relation between the mass of that element and the number of moles $n$ it contains:

$M_{mass}=\frac{m}{n}$ (4)

Isolating $n$ :

$n=\frac{m}{M_{mass}}$ (5)

Substituting (5) in (1):

$P.V=\frac{m}{M_{mass}}.R.T$ (6)

Substituting (3) in (6):

$P.V=\frac{\rho V}{M_{mass}}.R.T$ (7)

Isolating $M_{mass}$ :

$M_{mass}=\frac{\rho V}{PV}RT$ (8)

Simplifying:

$M_{mass}=\frac{\rho}{P}RT$ (9)

Solving with the given data:

$M_{mass}=\frac{1.55 g/L}{0.99 atm}(0.0821 \frac{atm.L}{mol.K})(310.15 K)$ (10)

Finally:

$M_{mass}=39.86 g/mol$ This is the molar mass of the gas

6 0

3 years ago

List the major subdivisions or components for each of the four types of compounds—carbohydrates, lipids, proteins, and nucleic a

galina1969 [7]

Lipids-fats, wax. oils, phospholipids, steroids
carbohydrates-sugars( glucose, glycogen, and cellulose in plants), starch
proteins- amino acids, and enzymes
nucleic acids- RNA, DNA

8 0

3 years ago

Photosynthesis is a process in which plants use energy from light to produce glucose and oxygen from carbon dioxide and water. T

a_sh-v [17]

Answer:

Water and carbon dioxide are added together to get glucose and oxygen.

Explanation:

6 0

3 years ago

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The Alligator and the Python are competing for top predator. What affect can the introduction of a non-native species have on an

nydimaria [60]

Answer:

If a non native species got introduced then it would hurt the animals already there because there is no animals that are hunting it down. Also it would cause a imbalance in the food chain which can cause so animals to become extinct. If the animal is left unchecked then that animal can become the best in the food chain because nobody can get rid of it.

Explanation:

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3 years ago