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tigry1 [53]
2 years ago
5

The graph below compares the total amounts of greenhouse gas emissions expected for future mid-size cars, including emissions th

at
occur when moving fuels from their original source to fueling stations where people can buy the fuels for their cars. Amounts are shown in
grams of CO2 (or equivalent greenhouse gas) per mile driven by the mid-size car.

Which vehicles are the best choices for environmentally friendly cars?
A. Fuel cell Electric and battery electric
B. Hybrid electric and plug-in hybrid electric
C. Conventional internal combustion and hybrid electric
D. Conventional internal combustion and battery electric

Chemistry
2 answers:
vladimir2022 [97]2 years ago
7 0

Answer:

fuel cell electric and battery electric

Explanation:

vichka [17]2 years ago
7 0

Answer:

A. fuel cell electric and battery electric

Explanation:

They have the least amount of greenhouse gas emissions.

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A 13 g sample of P4010 contains how many
Alex777 [14]

Answer:

\large \boxed{5.5 \times 10^{22}\text{ molecules of P$_{2}$O}_{5}}

Explanation:

You must calculate the moles of P₄O₁₀, convert to moles of P₂O₅,  then convert to molecules of P₂O₅.

1. Moles of P₄O₁₀

\text{Moles of P$_{4}$O}_{10} = \text{13 g P$_{4}$O}_{10} \times \dfrac{\text{1 mol P$_{4}$O}_{10}}{\text{283.89 g P$_{4}$O}_{10}} = \text{0.0458 mol P$_{4}$O}_{10}

2. Moles of P₂O₅

P₄O₁₀ ⟶ 2P₂O₅

The molar ratio is 2 mol P₂O₅:1 mol P₄O₁₀

\text{Moles of P$_{2}$O}_{5} = \text{0.0458 mol P$_{4}$O}_{10} \times \dfrac{\text{2 mol P$_{2}$O}_{5}}{\text{1 mol P$_{4}$O}_{10}} = \text{0.0916 mol P$_{2}$O}_{5}

3. Molecules of P₂O₅

\text{No. of molecules} = \text{0.0916 mol P$_{2}$O}_{5} \times \dfrac{6.022 \times 10^{23}\text{ molecules P$_{2}$O}_{5}}{\text{1 mol P$_{2}$O}_{5}}\\\\= \mathbf{5.5 \times 10^{22}}\textbf{ molecules P$_{2}$O}_{5}\\\text{There are $\large \boxed{\mathbf{5.5 \times 10^{22}}\textbf{ molecules of P$_{2}$O}_{5}}$}

6 0
3 years ago
Which of the following are balanced equations? Check all that apply.
EleoNora [17]

Answer: the answer is b

Explanation:

because why not

8 0
2 years ago
A molecule of carbon dioxide is made up of 1 atom of carbon and 2 atoms of oxygen. Which of the following represents 2 carbon di
Degger [83]
Here’s a CO2 molecule :)

3 0
2 years ago
Read 2 more answers
Which will ensure laboratory safety during the experiment? Check all that apply.
gtnhenbr [62]

The following will ensure laboratory safety during an experiment;

1) Using tongs to handle a hot beaker: This prevents direct contact with the hot beaker and avoids burns

5) Turning off the hot plate after use: If the hot plate is left on, it could injure anyone who might touch it accidentally

3 0
3 years ago
Read 2 more answers
How many atm are in 1520mmHg​
stealth61 [152]

Answer:

2

Explanation:

millimetre of mercury =1520

divide the pressure by 760 (do this always)

1520/760 = 2

Thats how you do it!

8 0
2 years ago
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