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2 years ago

Which is an example of a beneficial mutation?

Chemistry

2 answers:

nata0808 [166]2 years ago

7 0

Answer:

Explanation:

Helga [31]2 years ago

6 0

Answer:

Explanation:

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Which of the following describes a strong acid?

zlopas [31]

I remember learning this last y’all i jus don’t remember it might be A or C

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3 years ago

You do an experiment in which you need 0.5 moles of tyrosine (C9H11NO3). How many grams must you weigh out?

Yuki888 [10]

Answer: a) 90.5g

b) 33.6 L

Explanation:-

Molar mass of tyrosine $(C_9H_{11}NO_3)$ = 181 g/mol

According to Avogadro's law, 1 mole of every substance weighs equal to its molar mass.

1 mole of tyrosine $(C_9H_{11}NO_3)$ weighs = 181 g/mol

0.5 moles of tyrosine $(C_9H_{11}NO_3)$ weigh $=\frac{181g/mol}{1}\times 0.5moles=90.5g$

b) According to Avogadro's law, 1 mole of an ideal gas occupies 22.4 Liters at Standard conditions of temperature and pressure (STP).

1 mole of gas at STP occupy = 22.4 L

1.5 moles of gas at STP occupy = $\frac{22.4L}{1}\times 1.5=33.6L$

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3 years ago

A person walks at 2 km/h for four hours. What is their displacement?

Masteriza [31]

Answer:

4km

Explanation:

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3 years ago

What is the angle between the carbon-sulfur bond and the carbon-nitrogen bond in the thiocyanate ( SCN− ) ion?

dexar [7]

I’m not completely sure

6 0

3 years ago

Read 2 more answers

Which is a compound?

Dmitry [639]

(A.) Nickel and oxygen reacting chemically could create a compound. (Most likely some sort of oxide)

The pure silver is only made up of one element, so it can't be a compound.

The sandwich and all it's components may contain chemical compounds, but is not a compound in itself.

While it is possible that the material the nails are made out of is a compound, we are not given this information. Simply stating that nails (no matter the size) are in a box, does not make it a compound.

4 0

3 years ago