3 years ago

Explain how you know that gasoline burning in a car engine is a chemical change.?

Physics

2 answers:

Sonja [21]3 years ago

6 0

This is a chemical change because it is occurring during a process called combustion reaction

polet [3.4K]3 years ago

5 0

Burning, in general, is a chemical change.
Why?
This is because we are breaking and/or forming new bonds. We form a totally different substance.

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Answer:

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Explanation:

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3 years ago

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steposvetlana [31]

Answer

given,

V = 2 L

the left is an ideal gas at P = 100 k Pa and T = 500 K

mass is constant

$m_1 = m_2$

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$\dfrac{V}{500} = \dfrac{2 V}{T_2}$

$T_2 = 1000\ K$

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$m = \dfrac{P_1V_1}{RT_1}$

$m = \dfrac{100 \times 10^3 \times 2 \times 10^{-3}}{287\times 500}$

m = 1.39 x 10⁻³ Kg

$\Delta S_{univ} =1.39\times 10^{-3}(0.718 ln\ 2+ 0.287 ln (2)$

$\Delta S_{univ} =0.968\times 10^{-3}\ kJ/K$

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3 years ago

If a truck has the mass of 2,000 kilometres and a velocity of 35 m/s, what is the momentum

alexira [117]

Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 2000 × 35

We have the final answer as

Hope this helps you

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2 years ago

Which word in the following sentence should be capitalized in order to follow the conventions of Standard English?

Monica [59]

Being that Alaska is a state, it should be capitalized. You always capitalize a state name

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3 years ago

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ad-work [718]

Answer:

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Explanation:

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3 years ago