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Ket [755]
3 years ago
9

How can an elements become ion​

Chemistry
1 answer:
Tanzania [10]3 years ago
7 0
When a stable atom gains or loses its electrons then that’s when it becomes the ion.
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Ayudaaaaaa!!!!!!!!!!!!!!!!!!
Eva8 [605]

Answer:

uh you good

Explanation:

4 0
3 years ago
Which of the following free-body diagrams is a balanced force?
sleet_krkn [62]

Answer:

2

Explanation:

#1 is incorrect as there is no upward force that would balance the 5 N downward force

#3 is incorrect 2 is less than 5 = net force downward of 3 N

#4 is incorrect 5 is greater than three = 2 N net force going to the left and 2N going up

4 0
3 years ago
You use 4.98 g of Na2SO4, how many grams of barium sulfate are produced?<br><br> Na2+Ba(NO3)2= ?
Kaylis [27]

Answer:

Mass of barium sulfate = 8.17 g

Explanation:

Given data:

Mass of sodium sulfate = 4.98 g

Mass of barium sulfate produced = ?

Solution:

Na₂SO₄ + Ba(NO₃)₂    →   BaSO₄ + 2NaNO₃

Moles of sodium sulfate:

Number of moles = mass/molar mass

Number of moles =4.98 g / 142.04 g/mol

Number of moles = 0.035 mol

Now we will compare the moles pf sodium sulfate and with barium sulfate.

                            Na₂SO₄               :            BaSO₄

                                1                       :              1

                              0.035                :          0.035

Mass of barium sulfate:

Mass = number of moles × molar mass

Mass =   0.035 mol ×233.4 g/mol

Mass = 8.17 g

6 0
3 years ago
Answer this please!!!
zavuch27 [327]

Answer:

c

Explanation:

7 0
2 years ago
Read 2 more answers
Which statement is true? A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic. A
victus00 [196]

Answer:

A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic.

Explanation:

The spontaneity of a reaction depends on the Gibbs free energy(ΔG).

  • If ΔG < 0, the reaction is spontaneous.
  • If ΔG > 0, the reaction is nonspontaneous.

ΔG is related to the enthalpy (ΔH) and the entropy (ΔS) through the following expression:

ΔG = ΔH - T.ΔS

where,

T is the absolute temperature (always positive)

Regarding the exchange of heat:

  • If ΔH < 0, the reaction is exothermic.
  • If ΔH > 0, the reaction is endothermic.

<em>Which statement is true? </em>

<em>A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic. </em>TRUE. If ΔS < 0, the term -T.ΔS > 0. ΔG can be negative only if ΔH is negative.

<em>A reaction in which the entropy of the system increases can be spontaneous only if it is endothermic.</em> FALSE. If ΔS > 0, the term -T.ΔS < 0. ΔG can be negative if ΔH is negative.

<em>A reaction in which the entropy of the system decreases can be spontaneous only if it is endothermic.</em> FALSE. If ΔS < 0, the term -T.ΔS > 0. ΔG cannot be negative if ΔH is positive.

<em>A reaction in which the entropy of the system increases can be spontaneous only if it is exothermic.</em> FALSE. If ΔS > 0, the term -T.ΔS < 0. ΔG can be negative even if ΔH is positive, as long as |T.ΔS| > |ΔH|.

6 0
3 years ago
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