What is the average of atomic mass of carbon if 98.90% of the atoms are c-12 and 1.100% are c-13 atoms?

Chemistry

1 answer:

Paladinen [302]2 years ago

5 0

Answer:

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In this Punnett square, what is the probability of the offspring being a heterozygous purple flower

olya-2409 [2.1K]

Heterozygous means A capital P with a lowercase p. There are two purple flowers in the Punnett square with Pp out of 4 possible options. 2/4 is 1/2 which is 50%. So there is a 50% chance of a purple heterozygous flower.

8 0

3 years ago

How would the equilibrium of the reaction below be affected if the

goldfiish [28.3K]

Answer:

B. The reaction would shift to produce more O2 and SO2-

Explanation:

This is because the forward reaction is exothermic.

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3 years ago

Plz help me with these three please please !!!!!

Novay_Z [31]

Explanation:

Cations are positively charged ions with fewer electrons than protons. To partake in reaction, metals lose electrons to achieve a stable octet configuration. It has lost valence electrons and wold have a positive charge associated with it.

Potassium is a group 1 element. A metal.

Potassium has 1 valence electron so it loses the valence electron to form a stable octet.

A potassium ion has a positive charge and therefore cannot be an anion but is a cation.

The group number pretty much denotes the number of valence electrons.

Group 1 = 1

Group 2 = 2

Group 17 = 7

Group 18 = 8

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3 years ago

Use the above picture to fill in the blanks for the following statement. The _______sodium combines with the _______ chlorine to

zmey [24]

Your answer will be B because sodium and chlorine and both elements and two elements combine to make a compound

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3 years ago

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How does a buffer resist change in ph upon addition of a strong acid?

lora16 [44]

Any buffer exists in this equilibrium

HA <=> $H^+ + A^-$
In a buffer, there is a large reservoir of both the undissociated acid (HA) and its conjugate base ( $A^-$ )

When a strong acid is added, it reacts with the large reservoir of the conjugate base ( $A^-$ ) forming a salt and water. Since this large reservoir of the conjugate base is used, the ph does not alter drastically, but instead resist the pH change.

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4 years ago