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3 years ago

An INPUT of photosynthesis is ______________ A.Oxygen B.Roots C.Sunlight

Chemistry

2 answers:

Rashid [163]3 years ago

6 0

THE correct answer is sunlight because sunlight is what is mostly needed for photosynthesis.Hope this helps!!!

AfilCa [17]3 years ago

3 0

The inputs of photosynthesis are light energy, and matter in the form of water absorbed through the roots, and carbon dioxide absorbed through the leaves.

Therefore an input of photosynthesis from the choices given is,

Sunlight

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shusha [124]

Answer:

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Explanation:

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3 years ago

The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid must be 0.100 M. Based on thi

Grace [21]

Answer:

0.387 g

Explanation:

pH of the buffer = 1

V = Volume of solution = 100 mL

[HA] = Molarity of HA = 0.1 M

$K_a$ = Acid dissociation constant = $1.2\times 10^{-2}$

(assuming base as $Na_2SO_410H_2O$ )

Molar mass of base = 322.2 g/mol

pKa is given by

$pK_a=-\log K_a\\\Rightarrow pKa=-\log(1.2\times 10^{-2})\\\Rightarrow pK_a=1.92$

From the Henderson-Hasselbalch equation we get

$pH=pK_a+\log\dfrac{[A^-]}{[HA]}\\\Rightarrow pH-pK_a=\log\dfrac{[A^-]}{[HA]}\\\Rightarrow 10^{pH-pK_a}=\dfrac{[A^-]}{[HA]}\\\Rightarrow [A^-]=10^{pH-pK_a}[HA]\\\Rightarrow [A^-]=10^{1-1.92}\times0.1\\\Rightarrow [A^-]=0.01202\ \text{M}$

Moles of base

$0.01202\times100\times\dfrac{1}{10^3}=0.001202\ \text{moles}$

Mass of base is given by

$0.001202\times 322.2=0.387\ \text{g}$

The required mass of the base is 0.387 g.

5 0

3 years ago

Will give brainly

kicyunya [14]

Answer:

Ch4 + 2O2 ----> CO2 + 2H2O

Explanation:

Ch4 has 4H, 1C

O2 has 2 O2

CO2 has 1 C, 2O

H2O has 1 H, 2O

you need to add 2 to O2 to balance it. Add 2 to H2O to balance the H and O

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3 years ago

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7nadin3 [17]

Answer:

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Explanation:

Because fossil fuels are non-renewable resources and that means it take thousands of years to form. Also, it harm the environment and create this climate change. While renewable resources, however, don't take thousand of years to form and it do not harm the environment.

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3 years ago

Four pennies are heated to different temperatures. At which temperature

bonufazy [111]

Answer:

Explanation:

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3 years ago

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