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Naily [24]
3 years ago
13

Match the term with its description. Match Term Definition Chloroplast A) An organelle that contains chlorophyll and in which ph

otosynthesis takes place Chlorophyll B) A capacity to do work that can produce physical changes within living and nonliving systems Energy C) A green pigment present in all plants that absorbs light to provide energy for photosynthesis Glucose D) A type of sugar that is produced during photosynthesis to store chemical energy
Chemistry
2 answers:
kiruha [24]3 years ago
7 0

Answer: Chloroplast- A) An organelle that contains chlorophyll and in which photosynthesis takes place.

Chlorophyll- C) A green pigment present in all plants that absorbs light to provide energy for photosynthesis

Energy- B) A capacity to do work that can produce physical changes within living and nonliving systems.

Glucose- D) A type of sugar that is produced during photosynthesis to store chemical energy

Explanation:

Chloroplast- A) An organelle that contains chlorophyll and in which photosynthesis takes place:  In plants, chloroplasts is a organelle found in the leaves or green cells in which the process of photosynthesis takes place.

Chlorophyll- C) A green pigment present in all plants that absorbs light to provide energy for photosynthesis: Chlorophyll is a green pigment, found in the chloroplast organelle of plant cells. These pigments captures energy from sunlight. The light energy is used to produce food in the form of carbohydrates.

Energy- B) A capacity to do work that can produce physical changes within living and nonliving systems: Energy in the form of light, heat and chemical brings physical changes in the form, structure and function of living and non-living systems.

Glucose- D) A type of sugar that is produced during photosynthesis to store chemical energy: Photosynthesis is a biochemical pathway, in which energy from sun is converted into food in the form of glucose. The food energy is used to prepare chemical energy required for various metabolic activities in plants such as respiration. The chemical energy is produced in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).



Otrada [13]3 years ago
3 0
Chloroplast is an organelle that contains clorophyll
Clorophyll is a green pigment present in all plants
Energy is a capacity to do work that can produce physical changes
Glucose is a type of sugar that is produced during Photosynthesis
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3 years ago
0.630 moles of sodium chloride are how many grams (with calculation)
ipn [44]

Answer:

Heyaa!! Im Pinky and Im here to inform you that your answer is...

Explanation:

!!! 36.8189451 Grams !!!

  Have an amazing day!!!

~Pinky~!!

5 0
3 years ago
Read 2 more answers
Given that the formula for mass percent is mass % = mass solutemass solution100%, what will be our starting assumption when conv
attashe74 [19]

Answer:

    1. The starting assumption is an amount of 100 grams of solution.

    2. It simplifies the problem, because the percentage tells directly the mass of solute present in 100 grams of solution and from that point the calculations are easy to do.

Explanation:

<em>Percentages are always based on the amount of total substance</em>, total solution if it is the case.

If it is mass percentage the amount of total substance is mass.

For instance, a 30% mass solution of sodium chloride means 30 grams of sodium chloride (solute) in 100 grams of solution (includes the solvent plus the solute).

  • mass percent is mass % = (mass solute / mass solution) × 100%,

<em>Molarity</em> is number of moles of solute per volume in liters of solution:

  • Molarity = (moles solute / liters solution)

In this case,<em> to convert from percentage to molarity</em> you start assuming a base of 100 grams of solution. For the example of the 30% sodium chloride solution, by assuming 100 grams of solution, you had 30 grams of solute, which you can convert into moles, and, by using the density of the solution (which you need to know), you convert the 100 grams of solution into volume (in liters). Then, you can divide the number of moles of solute into the number of liters of solution, having started with the assumption of 100 grams of solution.

<em>Molality</em> is the number of moles of solute per kilograms of solvent.

  • Molality = moles solute / kg of solvent.

Again, <em>to convert from percentage to molality</em>, your first step is to assume a base of 100 grams of solution. Then, for the same example of 30% sodium chloride, convert 30 grams of solute to moles, and the 100 grams of solution into 70 grams of solvent (100g solution - 30 grams solute = 70 grams solvent), which is 0.070 kg. Finally, divide the moles of solute by 0.070 kg of solvent.

Then, assuming the amount of solution equal to 100 grams simplifies the problem because the percentage tells directly the amount of solute, which you can convert into moles making calculations easier than with other amount of solution.

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