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Anestetic [448]
3 years ago
12

1. Name an element that will lose two electrons to become chemically stable. What is the charge on the resulting ion?

Chemistry
1 answer:
Schach [20]3 years ago
3 0

Answer:

1.) Ca will lose two to become stable and its charge would be positive two

2.) S will gain two to become stable and the change will be negative two  

Explanation:

When you lose an electron the charge becomes positive and when you gain an electron the charge becomes negative.

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If the volume is decreased from 5.15L to
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Answer:

Increase

Explanation:

Boyle's law states volume and pressure have an inverse relationship.

- Hope that helped! Let me know if you need further explanation.

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Which of these pairs of elements is most likely to be part of a polyatomic ion?
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S and O would be on a polyatomic ion as I know of
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An object weighting 9.6 grams is placed in a graduated cylinder displacing the volume from 10.0mL to 13.2 mL
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The volume of object is 3.2 ml

<h3>Explanation:</h3>

Given:

Mass of the object = M = 9.6 g

Initial volume of liquid: V_1 = 10.0\ ml

Final volume of liquid after displacement: V_2 = 13.2\ ml

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Which of the following is NOT a testable hypothesis?
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4 years ago
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How many liters of 0.305 M K3PO4 solution are necessary to completely react with 187 mL of 0.0184 M NiCl2 according to the balan
Mashutka [201]

Answer:

6.55 mL of K₃PO₄ are required

Explanation:

We need to propose the reaction, in order to begin:

2K₃PO₄ (aq) + 3NiCl₂(aq) →  Ni₃(PO₄)₂ (s) ↓ + 6KCl (aq)

Molarity = mol/L (Moles of solute that are contained in 1 L of solution.)

M = mol / volume(L).  Let's find out the moles of chloride:

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3 moles of chloride react with 2 moles of phosphate

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We convert the volume from L to mL → 6.55×10⁻³L . 1000mL /1L = 6.55 mL

5 0
3 years ago
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