3 years ago

Don’t know how to do #2 someone help

Chemistry

2 answers:

telo118 [61]3 years ago

5 0

I think the answer is a.

worty [1.4K]3 years ago

5 0

Adding ice to the tea.

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Can someone help me please

lesantik [10]

It is an endothermic reaction because the products hAve more heat than the reactions so it was a gain of heat which makes the enthalpy Change positive !

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3 years ago

What volume would 312g of alcohol occupy

Aleksandr-060686 [28]

Answer:

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0.91g/ml=312g/volume

Volume=343ml

Explanation:

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3 years ago

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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2 years ago

In the reaction of 6 moles of CH4 with excess oxygen how many moles of water could be produced

Alex17521 [72]

The answer lies in the stoichiometry of the reaction. If u look at the number BEFORE the reagent u will see the ratios of the reagents.

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2 years ago

How many moles are in 22 grams of neon?

11111nata11111 [884]

Answer:

0.9911 mol

Explanation:

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2 years ago