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daser333 [38]
2 years ago
12

(b) when heated, solid calcium chlorate decomposes into calcium chloride solid, releasing oxygen gas.

Chemistry
1 answer:
kari74 [83]2 years ago
3 0

Ca (Clo3)2(s) ⇒ Ca Cl2 (s) + 3 O2 (g)

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Calculate the molar concentration of the Cl⁻ ions in 0.73 M MgCl2(aq).
Marta_Voda [28]
MgCl2(aq) is an ionic compound which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of MgCl2 that dissolves.
MgCl2(s) --> Mg+(aq) + 2 Cl⁻(aq)
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The answer to this question is [Cl⁻] = 1.5 M
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A balloon filled with 1.92 g of helium has a volume of 12.5 L. What is the balloon’s volume after 0.850 g of helium has leaked o
Marizza181 [45]

The answer is 1.56L. Avogadro's Law states that the volume of a gas is directly proportional to the number of moles (or a number of particles) of gas when the temperature and pressure are held constant.

V∝n

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V₂ = final volume of gas = ?

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V₁/n₁m= V₂/n₂

V₂= 1.56L

Avogadro's Law is in evidence whenever you blow up a balloon. The volume of the balloon increases as you add moles of gas to the balloon by blowing it up.

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8 0
2 years ago
A Brønsted-Lowry acid Question 9 options: A) has a lower pH than vinegar. B) is any species that donates a proton. C) is any spe
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Answer:

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The surface of the earth is divided into more than 50 large plates
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Major Plates

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</span>Arabian Plate
Caribbean Plate
Juan de Fuca Plate
Cocos Plate
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5 0
2 years ago
Help I don’t understand it and I need the answers
il63 [147K]

Answer:

Demonstration 1 showed a chemical change because a new gaseous substance was formed, and demonstration 2 showed a physical change because liquid water became water vapor.

Explanation:

Chemical changes alter the chemical makeup of a subject, and a physical change only alters the appearance of a subject, not the chemical makeup.

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