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Ivahew [28]
3 years ago
8

How many protons and electrons are contained in an atom of element 44?

Chemistry
2 answers:
vitfil [10]3 years ago
5 0

Answer:

44

Explanation:

protons and electrons have the same number:)

Andrews [41]3 years ago
5 0

Answer: element 44 = atomic # 44 44 protons 44 electrons.

Explanation:

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There are many factors that influence the population changes of an ecosystem. Which of these does not influence population size
devlian [24]

Answer:

B. An animal's weight

Explanation:

An animal's weight is the factor that does not influence population size in an ecosystem because this factor does not cause an increase or decrease the population of animals in an ecosystem. The birth and death rate of animals and number of animals in habitats are the factors that tells us about the increase and decrease in the population of organisms in an ecosystem but weight of organism can't affect the population.

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3 years ago
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At what temperature does ice melt at 101kPa?
Snezhnost [94]

Answer:

Explanation: I also have a question if anyone can help in chem please

6 0
2 years ago
Suppose that 2.14 grams of H2SO4 is mixed with enough water to make 225 mL of solution. Determine the Molarity (M) of the soluti
Alik [6]

Answer:

0.0970 M

Explanation:

Remember this equation:

mol/M x V

Convert it so that you can get M.

M=mol/V

Convert the 2.14 grams of H2SO4 into mols

=0.0218

Convert mL to L

225/1000

=0.225

Plug it in.

0.0218/0.225

=0.0970 M

6 0
3 years ago
Which Group is in the second column of the periodic table?
Misha Larkins [42]

Answer:

Hey there!

That would be the alkaline earth metals.

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3 0
3 years ago
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In the Lewis structure for ICl2–, how many lone pairs of electrons are around the central iodine atom.
Stells [14]

Answer :  The number of lone pairs of electrons around the central iodine atom are, 6 electrons

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The representation of valence electrons of an atom by dots around the symbol of an element is said to be the Lewis-dot symbol.

In the representation of Lewis-symbol, one electron dot must put on each side of the element symbol then paired the electrons.

The given molecule is, ICl_2^-

As we know that iodine ans chlorine has '7' valence electrons.

Therefore, the total number of valence electrons in ICl_2^- = 7 + 2(7) + 1 = 22

According to Lewis-dot structure, there are 4 number of bonding electrons and 18 number of non-bonding electrons.

Hence, the number of lone pairs of electrons around the central iodine atom are, 6 electrons

3 0
3 years ago
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