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kirill115 [55]
3 years ago
12

Water is a polar molecule. That means it has

Chemistry
1 answer:
77julia77 [94]3 years ago
7 0

Answer:

polarity is a description of how different the electrical poles in a molecule are. so the most likely answer is 4

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Sound wave a has lower frequency than sounds wave b but both waves have the same amplitude . What must also be true of these two
Nady [450]

Explanation:

Higher the frequency smaller will be the wavelength. Higher frequency have shorter wavelength and lower frequency waves have larger wavelength. Also, Beats are formed by the superposition of two waves with slightly different frequencies but with similar amplitudes. In time, waves switch between constructive interference and disruptive interference, giving the resultant wave a time-varying amplitude.

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What are three ways we can measure sustainability while evaluating whether to buy a product?
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Environmental, Economic, and Societal Impacts

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Does percent error measure accuracy or precision?
Nesterboy [21]

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Convert 72g of O2 to moles
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Moles = mass / molar mass
molar mass of O2 is 32
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4 0
3 years ago
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In the balanced reaction below, what is the mole ratio comparing iron (Fe) and oxygen gas (O2)?
zepelin [54]

The given balanced reaction is,

4Fe(s) + 3O_{2}(g) --->2Fe_{2}O_{3} (s)

The stoichiometric coefficients of each element or compound represents the number of moles of that element or compound required for the complete reaction to take place.

The mole ratios of different products and reactants will be:

\frac{Fe}{O_{2}} = \frac{4 mol Fe}{3 mol O_{2}}

\frac{Fe}{Fe_{2}O_{3}} = \frac{4 mol Fe}{2 Fe_{2}O_{3}}

\frac{O_{2}}{Fe_{2}O_{3}} =\frac{3 mol O_{2}}{2molFe_{2}O_{3}}

So the mole ratio comparing iron (Fe) and oxygen gas (O_{2}) is

4 : 3

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3 years ago
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