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3 years ago

Assuming 80 mg of vitamin c present 29.57 ml if oj how many milliliters of 0

Chemistry

1 answer:

BigorU [14]3 years ago

5 0

I think you add 29.57 + 80 and the answer would be 30.37

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Which of the following can undergo metamorphosis?

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Explanation: It is not possible for any of these animals to undergo metamorphosis.

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Which of the following chemical equations depicts a balanced chemical

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Arizona was the site of a 400,000-acre wildfire in June 2002. How much carbon dioxide (CO2) was produced into the atmosphere by

kodGreya [7K]

Answer:

2.97 × 10¹³ g

Explanation:

First, we have to calculate the biomass the is burned. We can establish the following relations:

2.47 acre = 10,000 m²
10 kg of C occupy an area of 1 m²
50% of the biomass is burned

The biomass burned in the site of 400,000 acre is:

$400,000acre\times\frac{10,000m^{2} }{2.47acre} \times \frac{10kgC}{m^{2} } \times 50\% = 8.10 \times 10^{9} kgC$

Let's consider the combustion of carbon.

C(s) + O₂(g) ⇒ CO₂(g)

We can establish the following relations:

The molar mass of C is 12.01 g/mol
1 mole of C produces 1 mole of CO₂
The molar mass of CO₂ is 44.01 g/mol

The mass of produced is CO₂:

$8.10 \times 10^{12}gC \times \frac{1molC}{12.01gC} \times \frac{1molCO_{2}}{1molC} \times \frac{44.01gCO_{2}}{1molCO_{2}} =2.97 \times 10^{13} gCO_{2}$

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3 years ago

Need help with the question

Sloan [31]

Answer:

for a i think it is choice 2

for b i think it is the first choice

Explanation:

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2 years ago