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3 years ago

Contrast How are photosynthesis and cellular respiration different?

Chemistry

1 answer:

vovikov84 [41]3 years ago

3 0

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide.

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In the teapot dome scandal, what did the secretary of the interior albert fall lease

yuradex [85]

Albert Fall secretly leased federal oil reserves for personal gain.

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3 years ago

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If you have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, which element is the reactant in excess? 3H2 +

kicyunya [14]

Answer:

nitrogen

Explanation:

The stoichiometry of the reaction says that $H_{2}$ and $N_{2}$ react 3:1 to form 2 moles of $NH_{3}$ , so, if you have 3,5 moles of H, which is equal to 1,75 moles of $H_{2}$ , and 5 moles of N, which are equal to 2,5 moles of $n_{2}$ . only $\frac{1,75 moles of H2}{3}$ =0.583 moles of $N_{2}$ , will react, leaving <em>1.917 moles of </em> $N_{2}$ <em>unreacted</em>, and forming 0.583*2=1.166 moles of $NH_{3}$

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3 years ago

Susie cooked sausages on a barbecue. Fat and water in the sausages changed state. which two changes of state occur during this p

padilas [110]

Answer:

The options a and b are correct

Explanation:

This options provided to the question are the answers to the question. But for clarification. When the fat melts, the change of state that occurs here is from solid to liquid (which is called melting) while the change of state that occurs when the water evaporated is from liquid to gas (which is called evaporation).

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3 years ago

What material often called a shooting stars as it enters the Earth’s atmosphere

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What would be a comet

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3 years ago

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Read the given chemical reaction. C2H6 + O2 → CO2 + H2O How many moles of O2 are required to react completely with 3.2 moles of

Vesnalui [34]

<h2>Hello!</h2>

The answer is: 11,2 moles of O2

First, we need to balance the equation in order to calculate how many moles reacts,

The balanced equation is:

$2 C2H6 + 7 O2 = 4 CO2 + 6 H2O$

So, from the equation we have that 2 moles of C2H6 reacts with 7 moles of O2, knowing that we can calculate how many moles of O2 are required to react completely with 3.2 moles of C2H6:

$3,2moles(C2H6)*\frac{7 moles (O2)}{2moles(C2H6)} =11,2 moles(O2)$

So, we need 11,2 moles of O2 to react completely with 3,2 moles of C2H6.

Have a nice day!

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3 years ago