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ladessa [460]
2 years ago
10

As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric

charge the atom
Chemistry
2 answers:
IrinaK [193]2 years ago
5 0
i think the greater the electric charge the atom decreases in size
anastassius [24]2 years ago
4 0

As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric charge the atom

A) needs more neutrons to gain enough nuclear binding forces to overcome the repulsion.  

B) needs fewer neutrons to gain enough nuclear binding forces to overcome the repulsion.  

C) needs more electrons to gain enough nuclear binding forces to overcome the repulsion.  

D) needs fewer neutrons to gain enough nuclear binding forces to overcome the repulsion.

The answer is A) needs more neutrons to gain enough nuclear binding forces to overcome the repulsion.

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What would be the products for the reaction Br2 + KI →? (Just identify the correct products for the reaction. You do not need to
Savatey [412]

<u>Answer:</u> The products of the reaction will be I_2\text{ and }KBr

<u>Explanation:</u>

Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.

The general chemical equation for the single displacement reaction follows:

A+BC\rightarrow AC+B

The given chemical equation follows:

Br_2+2KI\rightarrow I_2+2KBr

Bromine element is more reactive than iodine element. Thus, can easily replace iodine from its chemical reaction.

Hence, the products of the reaction will be I_2\text{ and }KBr

5 0
2 years ago
Use enthalpies of formation given in appendix c to calculate δh for the reaction br2(g)→2br(g), and use this value to estimate t
Contact [7]

Given reaction represents dissociation of bromine gas to form bromine atoms

Br2(g) ↔ 2Br(g)

The enthalpy of the above reaction is given as:

ΔH = ∑n(products)ΔH^{0}f(products) - ∑n(reactants)ΔH^{0}f(reactants)

where n = number of moles

ΔH^{0}f= enthalpy of formation

ΔH = [2*ΔH(Br(g)) - ΔH(Br2(g))] = 2*111.9 - 30.9 = 192.9 kJ/mol

Thus, enthalpy of dissociation is the bond energy of Br-Br = 192.9 kJ/mol

3 0
2 years ago
If 36.0 g of NaOH (MM = 40.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, what is the
Kobotan [32]

Answer:

Molarity of NaOH = 1.8 M.

Explanation:

From the question given above, the following data were obtained:

Mass of NaOH = 36 g

Molar mass of NaOH = 40 g/mol

Volume = 500 mL

Molarity of NaOH =?

Next, we shall determine the number of mole in 36 g of NaOH. This can be obtained as follow:

Mass of NaOH = 36 g

Molar mass of NaOH = 40 g/mol

Mole of NaOH =?

Mole = mass / molar mass

Mole of NaOH = 36 / 40

Mole of NaOH = 0.9 mole

Next, we shall convert 500 mL to L. This can be obtained as follow:

1000 mL = 1 L

Therefore,

500 mL = 500 mL × 1 L / 1000 mL

500 mL = 0.5 L

Finally, we shall determine the molarity of NaOH. This can be obtained as follow:

Mole of NaOH = 0.9 mole

Volume = 0.5 L

Molarity of NaOH =?

Molarity = mole / Volume

Molarity of NaOH = 0.9 / 0.5

Molarity of NaOH = 1.8 M

8 0
1 year ago
Which accurately represents these building blocks of matter from the smallest to the largest? atom → molecule or compound molecu
Natali5045456 [20]

Answer:

The awnser is A.

Explanation:

I got it right on edgenuity. If im wrong sorry ;-;

5 0
1 year ago
Read 2 more answers
You have 125 g of a certain seasoning and are told that it contains 62.0 g of salt. what is the percentage of salt by mass in th
r-ruslan [8.4K]
62.0g/125g= 0.496 x 100 = 49.6%
4 0
2 years ago
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