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Darya [45]
3 years ago
7

Which of the following is necessary for photosynthesis A.calcium B.glucose C.water

Chemistry
2 answers:
Mamont248 [21]3 years ago
6 0
C because the plant needs water to go through photosynthesis
irina1246 [14]3 years ago
3 0
I would think water is the answer
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Both natural products and synthetic products come from natural resources. Explain why this statement is true.
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Explanation:

All resources used in making all products can be traced to their natural origin. What differentiates a natural product from a synthetic one is the level of processing that goes into making synthetic products.

  • For example, a synthetic product such as plastic is actually derived from natural product.
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Which phrase describes the energy of collision?(1 point)
Kruka [31]

The phrase that describes the energy of collision is D. kinetic energy transferred when billiard balls hit each other.

<h3>What is collision?</h3>

collision can be regarded as  coming together of one solid or direct impact to the other such as car collided with a tree.

Therefore, kinetic energy transferred when billiard balls hit each other is an example.

Learn more about collision at;

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8 0
2 years ago
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EASY 100 POINTS, WILL MARK BRAINLEST, 2 QUESTIONS, SHOW YOUR WORK OR NO POINTS
SVETLANKA909090 [29]

Answer:

Explanation:

1. Please provide the enthalpy info - I will work on it with the info

2.

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ii) Reaction b should be written reversely to match the reactants of SO2:

 2SO2 + O2 -> 2SO3     deltaH = 256kJ

iii) Adding the equations together:

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iv) Enthalpy of the combined reaction = -370+256 = -114kJ

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5 0
3 years ago
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A 50.0 mL graduated cylinder has a mass of 65.1 g. When it is filled with an unknown liquid to the 49.3 mL mark, the cylinder an
Delvig [45]

<u>Answer:</u> The density of liquid is 1.12g/cm^3

<u>Explanation:</u>

We are given:

Mass of cylinder, m_1 = 65.1 g

Mass of liquid and cylinder combined, M = 120.5 g

Mass of liquid, m_2 = (M-m_1)=(120.5-65.1)g=55.4g

To calculate density of a substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

We are given:

Mass of liquid = 55.4 g

Volume of liquid = 49.3 mL = 49.3 cm^3    (Conversion factor:  1mL=1cm^3 )

Putting values in above equation, we get:

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Hence, the density of liquid is 1.12g/cm^3

3 0
3 years ago
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