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grigory [225]
3 years ago
8

What element has a combined 80 protons and neutrons in it's nucleus?

Chemistry
1 answer:
pentagon [3]3 years ago
7 0

Answer: The element mercury

Explanation:

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7. How many kilograms are equal to 3.3 scruples?
Zina [86]

Answer:

the answer would be 777.61791764707.

6 0
3 years ago
Read 2 more answers
Find the formula mass (molecular mass) of propanol: C3H6O ​
malfutka [58]

Answer:

                     Formula mass  =  58.09 g

Explanation:

                    Formula mass of a given molecule is defined as the sum of atomic masses of elements forming the empirical formula of that molecule.

                     In order to calculate the formula mass of propanol, following data is required;

Empirical Formula of Propanol:

                                                   The empirical formula of Propanol is C₃H₆O (also the molecular formula) as it is the lowest possible atomic ratio of the given elements.

Atomic Masses of Elements:

                      Carbon  =  12.01 g/mol

                      Hydrogen  =  1.01 g/mol

                      Oxygen  =  16.00 g/mol

Hence,

Formula mass  = (At. mass of C)₃ + (At. mass of H)₆ + (At. mass of O)

Formula mass  = (12.01)₃ + (1.01)₆ + (16.00)

Formula mass  =  36.03 + 6.06 + 16.00

Formula mass  =  58.09 g

5 0
3 years ago
True or False. For solidification, a substance must absorb heat​
TEA [102]

Answer:

true

Explanation:

I think it is true but im uncertain

5 0
4 years ago
How many moles are in 4.818 x 1024 chloride ions
erastovalidia [21]

Answer:

<h3>The answer is 8.00 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4.818 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 8.00332225...

We have the final answer as

<h3>8.00 moles</h3>

Hope this helps you

4 0
3 years ago
How many electrons are in an atom of elemental sodium?
Brut [27]
Elemental sodium atom contains 11 electrons. Hope this helps you!
5 0
4 years ago
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