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3 years ago

11

Elements have been discovered with up to ____ energy levels.

1 answer:

qaws [65]3 years ago

8 0

B)

im not sure but i think

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Which BEST describes the difference between speed and velocity? A) Velocity is instantaneous.

aleksandrvk [35]

Answer:

Option D describe the best this statement .

Explanation:

As velocity is the quantity which includes the rate of change as well as direction

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3 years ago

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The answer is B. Fungi,Protists

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2 years ago

Which type of formula represents the simplest whole-number ratio of atoms of the elements in a compound?

sleet_krkn [62]

The empirical formula represents the simplest whole number shows the simplest whole number ratio of atoms in a compound. An example of this is the empirical formula for glucose (C₆H₁₂O₆) is C₃H₆O₃.

I hope this helps. Let me know if anything is unclear.

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2 years ago

Assume a gasoline is isooctane, which has a density of 0.692 g/ml. What is the mass of 3.8 gal of the gasoline (1 gal = 3.78 l)?

sveticcg [70]

Density is the ratio of mass to the volume.

The mathematical expression is given as:

$density=\frac{mass}{volume}$

Now, density of isooctane = $0.692 g/mL$

Volume = $3.8 gal$

Since, 1 gallon = 3.78 L

So, 3.8 gal = $3.78 L\times 3.8$

= $14.364 L$

As, 1 L = 1000 mL

Therefore, $14.364 L$ = $14.364 L\times 1000 mL$

Volume in mL = $14364 mL$

Put the values,

$0.692 g/mL=\frac{mass}{14364 mL}$

$m = 0.692 g/mL\times 14364 mL$

= $9939.888 g$

Hence, mass of 3.8 gal of the gasoline is $9939.888 g$ .

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3 years ago

The picture below is a great example of __________ biodiversity.

ki77a [65]

Answer:

number three is the answer moderate

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2 years ago

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