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Anettt [7]
3 years ago
7

What is the term for a group of atoms held together by covalent bonds and having an overall positive or negative charge?

Chemistry
2 answers:
madam [21]3 years ago
5 0
Polyatomic ion: a covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
Ilya [14]3 years ago
3 0
Polyatomic ion- <span>a group of atoms held together by covalent bonds and having an overall positive or negative charge

Hope this helped :)</span>
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What are the components of a nucleotide?
Eva8 [605]

Answer:

a nitrogen containing base, a pentose (five-carbon) sugar, and one or more phosphate groups

Explanation:

found this information on, newworldencyclopedia.com

5 0
3 years ago
PLEASE ANSWER AS SOON AS POSSIBLE! 25 Pts
vovikov84 [41]

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8 0
2 years ago
For an endothermic reaction, how will the value for Keq change when the temperature is increased?
Nataly [62]
I put the answer <em>C: Keq will increase</em>, on PLATO. Hope this works for you!
4 0
3 years ago
Read 2 more answers
What is the age of mummified primate skin that contains 8.25% of the original quantity of 14C?
rjkz [21]

Answer:

20619.4793 years

Explanation:

The half life of carbon-14 = 5730 years

The formula for the half life for a first order kinetic reaction is:

t_{1/2}=\frac {ln\ 2}{k}

Where,  

t_{1/2} is the half life

k is the rate constant.

Thus rate constant is:

5730 years=ln(2)/k

k = 1.21×10⁻⁴ years ⁻¹

Using integrated rate law as:

ln\ \frac {A_t}{A_0}=-k\times t

Where,

A_t is the concentration at time t

A_0 is the initial concentration

Given that the final concentration contains 8.25 % of the original quantity which means that:

\frac {A_t}{A_0}=0.0825

So,

ln(.0825)= -1.21×10⁻⁴×t

<u> t = 20619.4793 years</u>

<u></u>

8 0
2 years ago
What does NOT affect the characteristic properties of an element?
bazaltina [42]

Answer:

characteristic properties of an element are the defining properties of that element and it does not change with quantity of the element used.

Explanation:

the amount or the quantity of the element used does not affect the characteristic property of the element. it does not matter is the if the amount or the quantity of the element used in the reaction is large  or the small the characteristic properties like boiling point, melting point, density, thermal conductivity, etc remain the same or remain constant.

5 0
3 years ago
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