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3 years ago

What is photosynthesis???

2 answers:

7 0

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

kupik [55]3 years ago

4 0

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

or in simple terms Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

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Now they feel it is best to have you identify an unknown gas based on its properties. Suppose 0.508 g of a gas occupies a volume

pishuonlain [190]

Answer: Option (b) is the correct answer.

Explanation:

The given data is as follows.

mass = 0.508 g, Volume = 0.175 L

Temperature = (25 + 273) K = 298 K, P = 1 atm

As per the ideal gas law, PV = nRT.

where, n = no. of moles = $\frac{mass}{\text{molar mass}}$

Hence, putting all the given values into the ideal gas equation as follows.

PV = $\frac{mass}{\text{molar mass}} \times RT$

1 atm \times 0.175 L = $\frac{0.508 g}{\text{molar mass}} \times 0.0821 L atm/ K mol \times 298 K$

= 71.02 g

As the molar mass of a chlorine atom is 35.4 g/mol and it exists as a gas. So, molar mass of $Cl_{2}$ is 70.8 g/mol or 71 g/mol (approx).

Thus, we can conclude that the gas is most likely chlorine.

4 0

3 years ago

1. 2Na + 2HCl --> 2NaCl + H2

snow_tiger [21]

Answer:

Explanation:

4 0

3 years ago

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What is the molarity of 20.2 g of potassium nitrate, KNO3, in enough water to make 250.0 mL of solution

KATRIN_1 [288]

Answer:

0.8M

Explanation:

CM=n/V

8 0

3 years ago

The radioactive atom R 88 210 a is an alpha emitter. What nucleus does it produce?

olasank [31]

Answer:

X 86 206

Explanation:

Radioactive atoms are nuclei that can under go disintegration to emit either an alpha particle, beta particle or gamma radiation. The process could be spontaneous or stimulated.

When a radioactive atom R 88 210 emits alpha particle, it would produce an element with atomic number 86 and mass number 206 i.e X 86 206. An alpha particle is usually a helium nucleus.

$R^{210}$ ⇒ $x^{206}$ + $He^{4}$ + energy

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3 years ago

Type the correct answer in each box. In an atom, the first energy level can hold electrons. The second energy level can hold ele

Dimas [21]

1st energy level can hold 2 electrons
2nd energy level can hold 8 electrons
3rd energy level can hold 8 or 18 electrons

7 0

3 years ago

Read 2 more answers

What is photosynthesis???​

What is photosynthesis???