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rosijanka [135]
4 years ago
8

30 points!!!

Chemistry
2 answers:
chubhunter [2.5K]4 years ago
7 0

Answer:

C)

Explanation:

madam [21]4 years ago
5 0
C, <span>Fuel cell cars do not release greenhouse gases, is the best choice. Hydrogen fuel cells do not release carbon dioxide.</span>
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What is the main difference between sexual and asexual reproduction
andreyandreev [35.5K]

Answer:

Asexual reproduction does not involve sex cells or fertilisation . Only one parent is required, unlike sexual reproduction which needs two parents. Since there is only one parent, there is no fusion of gametes and no mixing of genetic information.

5 0
3 years ago
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How many grams of carbon dioxide are produced by complete combustion of 5 grams of c5h10
Lemur [1.5K]

Answer:

15.4 g

Explanation:

The reaction that takes place is:

  • 2C₅H₁₀ + 15O₂ → 10CO₂ + 10H₂O

First we <u>convert 5 grams of C₅H₁₀ into moles</u>, using its <em>molar mass</em>:

  • 5 g ÷ 70 g/mol = 0.07 mol C₅H₁₀

Then we <u>convert C₅H₁₀ moles into CO₂ moles</u>, using the <em>stoichiometric coefficients</em> of the reaction:

  • 0.07 mol C₅H₁₀ * \frac{10molCO_2}{2molC_5H_{10}} = 0.35 mol CO₂

Finally we <u>convert 0.35 moles of CO₂ into grams</u>:

  • 0.35 mol CO₂ * 44 g/mol = 15.4 g

5 0
3 years ago
Water can act as both an acid and a base in an ionization reaction to form (H) and OH ions.
matrenka [14]
Sorry I need points :)
4 0
3 years ago
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A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
4 years ago
Draw the structures of organic compounds a and b omit all by products thf
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Step 2: Oxidation of Primary Alcohol:
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6 0
4 years ago
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