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lara31 [8.8K]
3 years ago
5

What happens during a lunar eclipse?

Chemistry
1 answer:
Alexeev081 [22]3 years ago
6 0

Answer:

<h2>A.EARTH PASSES BETWEEN THE SUN AND THE MOON</h2>

Explanation:

When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse.

pabrainliest po plss:)

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The process that provides the sun with its energy
SashulF [63]

Answer:

Nuclear fusion

Explanation:

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3 years ago
Which of the following statements is true about the specific heat capacity of a substance?
Ludmilka [50]

Answer:

Option A

Explanation:

An intensive property is a bulk property, meaning that it is a local physical property of a system that does not depend on the system size or the amount of material in the system. Examples of intensive properties include temperature, T; refractive index, n; density, ρ; and hardness of an object,specific heat,  η.

Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, specific heat  and many others.

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3 years ago
Do the same volumes of H2O and H2SO4 have the same number of molecules?
Romashka [77]
No, they do not. Hope I helped! :)
5 0
3 years ago
Identify the products in the following chemical resction 2NaHCO3 + CaCI2 --&gt; CaCO3 + CO2 + 2NaCI + H2O​
Radda [10]

the products are:

CaCO3 Calcium Carbonate

CO2 carbon dioxide

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H2O​ Water

8 0
3 years ago
There are some data that suggest that zinc lozenges can significantly shorten the duration of a cold. If the solubility of zinc
zhuklara [117]

Answer:

K_{sp} of Zn(CH_{3}COO)_{2} is 0.0513

Explanation:

Solubility equilibrium of Zn(CH_{3}COO)_{2}:

Zn(CH_{3}COO)_{2}\rightleftharpoons Zn^{2+}+2CH_{3}COO^{-}

Solubility product of Zn(CH_{3}COO)_{2} (K_{sp}) is written as-            K_{sp}=[Zn^{2+}][CH_{3}COO^{-}]^{2}

Where [Zn^{2+}] and [CH_{3}COO^{-}] represents equilibrium concentration (in molarity) of Zn^{2+} and CH_{3}COO^{-} respectively.

Molar mass of Zn(CH_{3}COO)_{2} = 183.48 g/mol

So, solubility of Zn(CH_{3}COO)_{2} = \frac{43.0}{183.48}M = 0.234M

1 mol of Zn(CH_{3}COO)_{2} gives 1 mol of Zn^{2+} and 2 moles of CH_{3}COO^{-} upon dissociation.

so,   [Zn^{2+}] = 0.234 M and [CH_{3}COO^{-}] = (2\times 0.234)M=0.468M

so, K_{sp}=(0.234)\times (0.468)^{2}=0.0513          

8 0
4 years ago
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