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vazorg [7]
3 years ago
10

Indicate whether the following represents a Chemical or Physical change: Gasoline burns in air

Chemistry
2 answers:
valina [46]3 years ago
8 0

Answer:

Chemical

Explanation:

Whenever "burns" is being used, most of the time it is a chemical change

viktelen [127]3 years ago
8 0

Answer:

chemical change

Explanation:

it's a chemical change because when gas burn it produces water and carbon dioxide

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Estimate your de Broglie wavelength when you are running. (For this problem use h = 10^−34 in SI units and 1 lb is equivalent to
AlekseyPX

Answer:

A. your running speed 1.5 m/s

B. your mass 70 kg

C. your de Broglie wavelength 6.32x10^{-36}m

Explanation:

Hello there!

In this case, since the equation for the calculation of the Broglie wavelength is:

\lambda =\frac{h}{m*v}

We can assume a running speed of about 1.5 m/s and a mass of 70 kg, so the resulting Broglie wavelength is:

\lambda =\frac{6.626x10^{-34}kg\frac{m}{s} }{70kg*1.5\frac{m}{s} }\\\\\lambda =6.32x10^-36m

Best regards!

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<span>Mass of the solution = 0.17m
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