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Free_Kalibri [48]
3 years ago
10

Which factors cause a rising tide? A. The moon's gravity and Earth's rotation B. Density differences due to salinity and tempera

ture C. Cold and warm ocean currents D. The ocean's conveyor belt and gyres
Chemistry
2 answers:
icang [17]3 years ago
5 0
The answer is A)The moon's gravity and Earth's rotation. -Apex
Irina18 [472]3 years ago
3 0
It a because the moons gravity pulls the water and the earths rotation moves the bump/wave
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You have a vial that may contain lead(II) cations or barium cations, but not both. Available to you are solutions of ammonium su
Bess [88]

Answer:

We should add, the KBr solution.

Explanation:

The vial contains Ba²⁺  and Pb²⁺

Our solutions are: (NH₄)₂ SO₄, NaF and KBr

We dissociate the solutions:

(NH₄)₂ SO₄  → 2NH₄⁺ + SO₄⁻²

NaF → Na⁺ + F⁻

KBr → K⁺ + Br-

When we add ammonium sulfate and sodium fluorine, we are adding sulfates and fluorines, but these two anions make precipitate both cations, we can not determine, if the vial contains Ba²⁺ or Pb²⁺

SO₄⁻²(aq) + Ba²⁺ (aq) → BaSO₄ (s)  ↓

SO₄⁻² (aq)+ Pb²⁺(aq)  → PbSO₄ (s)  ↓

2F⁻ (aq) + Ba²⁺ (aq) → BaF₂ (s) ↓

2F⁻ (aq) + Pb²⁺ (aq) → PbF₂ (s)  ↓

When we add the KBr, bromides only make precipitate with Pb²⁺, so the vial has only Pb²⁺ cation:

2Br⁻ (aq) + Ba²⁺ (aq) → BaBr₂ (aq)

2Br⁻ (aq) + Pb²⁺ (aq) → PbBr₂ (s) ↓

3 0
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Which of the following is one of the energy conversions taking place in a campfire? Heat to light Heat to kinetic Chemical to li
Blizzard [7]

Answer:Heat to Light

Explanation:

8 0
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Which type of immunity provides lifetime protection for the body against a specific pathogen?
shutvik [7]
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7 0
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seropon [69]

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Consider the following reaction at equilibrium: 2 NH3(g) ⇄ N2(g) + 3 H2(g) What does Le Chatelier's principle predict will happe
BabaBlast [244]

Answer : The equilibrium will shift in the left direction.

Explanation :

Le-Chatelier's principle : This principle states that if any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

The given reaction is:

2NH_3(g)\rightleftharpoons N_2(g)+3H_2(g)

As per question, when we are adding N_2  then the concentration of N_2 is increased on product side then the equilibrium will shift in the direction where decrease of concentration of N_2 takes place. Therefore, the equilibrium will shift in the left direction.

Thus, the equilibrium will shift in the left direction.

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