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3 years ago

8

What are the reactants of photosynthesis?carbon dioxide and hydrogenhydrogen, oxygen, and waterlight energy, water, and carbon d

ioxideoxygen and glucose

2 answers:

Furkat [3]3 years ago

8 0

Answer: water, and carbon dioxide

Explanation:

Photosynthesis is the process used by plants, algae and certain bacteria to convert energy from sunlight and turn it into chemical energy in the form of glucose which is used a s a source of energy by many organisms.

$6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2+energy$

The reactants are give on the left side of the arrow and products are given on the right side of arrow.

Thus the reactants are carbon dioxide and water.

AleksandrR [38]3 years ago

4 0

Carbon Dioxide and Water are the reactants in photosynthesis, Energy, water and glucose are the products of the reaction

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If 45.0 mL of ethanol (density=0.789 g/mL) initially at 9.0 C is mixed with 45.0 mL of water (density=1.0 g/mL) initially at 28.

Klio2033 [76]

Answer : The final temperature of the mixture is $22.7^oC$

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

$q_1=-q_2$

$m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)$

And as we know that,

Mass = Density × Volume

Thus, the formula becomes,

$(\rho_1\times V_1)\times c_1\times (T_f-T_1)=-(\rho_2\times V_2)\times c_2\times (T_f-T_2)$

where,

$c_1$ = specific heat of ethanol = $2.3J/g^oC$

$c_2$ = specific heat of water = $4.18J/g^oC$

$m_1$ = mass of ethanol

$m_2$ = mass of water

$\rho_1$ = density of ethanol = 0.789 g/mL

$\rho_2$ = density of water = 1.0 g/mL

$V_1$ = volume of ethanol = 45.0 mL

$V_2$ = volume of water = 45.0 mL

$T_f$ = final temperature of mixture = ?

$T_1$ = initial temperature of ethanol = $9.0^oC$

$T_2$ = initial temperature of water = $28.6^oC$

Now put all the given values in the above formula, we get

$(0.789g/mL\times 45.0mL)\times (2.3J/g^oC)\times (T_f-9.0)^oC=-(1.0g/mL\times 45.0mL)\times 4.18J/g^oC\times (T_f-28.6)^oC$

$T_f=22.7^oC$

Therefore, the final temperature of the mixture is $22.7^oC$

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3 years ago

Solve for a, b, c, AND d<br> d<br> C<br> 84°<br> 930<br> 970<br> b

olga55 [171]

Answer:

a = 87

b = 83

c = 96

d = 86

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mafiozo [28]

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