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2 years ago

X: glucose + oxygen ---- carbon dioxide + water

Chemistry

2 answers:

elena-s [515]2 years ago

5 0

Answer:

Explanation:

damaskus [11]2 years ago

4 0

Answer: X

Explanation: During bread making the yeast respires aerobically which helps the bread rise by releasing carbon dioxide and water. X is the formula for aerobic respiration.

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Calculate the ratio of the mass ratio of S to O in SO to the mass ratio of S to O in SO2. Consider a sample of SO in which the m

serg [7]

Answer : The ratio of the mass ratio of S to O in SO to the mass ratio of S to O in SO₂ is 2.

Explanation :

Law of multiple proportion : It states that when two elements can combine to form two or more different compounds then the mass of one element compared to fixed mass of the other will always be in a ratio of small whole numbers.

As we know that,

Mass of oxygen = 16 g

Mass of sulfur = 32 g

Mass of sulfur in SO = 32 g

Mass of oxygen in SO = 16 g

Mass ratio of Sulfur to oxygen in SO = $\frac{\text{Mass of sulfur}}{\text{Mass of oxygen}}=\frac{32g}{16g}=2$ .....(1)

and,

Mass of sulfur in SO₂= 32 g

Mass of oxygen in SO₂ = (2 × 16)g = 32 g

Mass ratio of Sulfur to oxygen in SO₂ = $\frac{\text{Mass of sulfur}}{\text{Mass of oxygen}}=\frac{32g}{32g}=1$ .....(1)

Ratio of S and O in SO = 2 : 1

Ratio of S and O in SO₂ = 1 : 1

Taking ratio of 1 and 2, we get:

$\frac{\text{Mass ratio of Sulfur to oxygen in SO}}{\text{Mass ratio of Sulfur to oxygen in }SO_2}=\frac{2}{1}=2$

Hence, the ratio of the mass ratio of S to O in SO to the mass ratio of S to O in SO₂ is 2.

7 0

3 years ago

For a reaction 2A (aq) + BC (aq) = AB (s) + AC (l), the order of reaction with respect to A is 2 and the overall order of reacti

Norma-Jean [14]

As, overall order of reaction is 2 indicates the rate of reaction is only depending on concentration of A and its rate of reaction can be shown as:

R = K [A]^2

So, by increasing the concentration of A, the rate of reaction increases.

4 0

4 years ago

How is a comet different from a star?

lana [24]

Answer:

The main difference between asteroids and comets is their composition, as in, what they are made of. Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. Both asteroids and comets were formed early in the history of the solar system about 4.5 billion years ago.

Explanation:

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6 0

3 years ago

Read 2 more answers

Deep sea divers use a mixture of helium and oxygen to breathe. Assume that a diver is going to a depth of 150 feet where the tot

Svetlanka [38]

Answer:

4.525% is the percentage by volume of oxygen in the gas mixture.

Explanation:

Total pressure of the mixture = p = 4.42 atm

Partial pressure of the oxygen = $p_1=0.20 atm$

Partial pressure of the helium = $p_2$

$p_1=p\times \chi_1$ (Dalton law of partial pressure)

$0.20 atm=4.42 atm\times \chi_1$

$\chi_1=\frac{0.20 atm}{4.42 atm}=0.04525$

$\chi_2=1-\chi_1=1-0.04525=0.95475$

$chi_1+chi_2=1$

$n_1=0.04525 mol,n_2=0.95475 mol$

According Avogadro law:

$Moles\propto Volume$ (At temperature and pressure)

Volume occupied by oxygen gas = $V_1$

Total moles of gases = n = 1 mol

Total Volume of the gases = V

$\frac{n_1}{V_1}=\frac{n}{V}$

$\frac{V_1}{V}=\frac{n_1}{n}=\frac{0.04525 mol}{1 mol}$

Percent by volume of oxygen in the gas mixture:

$\frac{V_1}{V}\times 100=\frac{0.04525 mol}{1 mol}\times 100=4.525\%$

6 0

4 years ago

Write a net ionic equation for the reaction that occurs when nickel(ii carbonate and excess hydrobromic acid (aq are combined.

seropon [69]

First, we write the reaction equation:
NiCO₃ + 2HBr → NiBr₂ + H₂CO₃

Now, writing this in ionic form:
NiCO₃ + 2H⁺ + 2Br⁻ → NiBr₂ + 2H⁺ + CO₃⁻²

(NiCO₃ is insoluble so it does not dissociate in to ions very readily)

Overall equation:
NiCO₃ + 2Br⁻ → NiBr₂ + CO₃⁻²

7 0

3 years ago