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2 years ago

Which is the following is a decomposition reaction

Chemistry

1 answer:

lora16 [44]2 years ago

5 0

The equation that is a decomposition reaction is

PbCO3(s) ---> PbO(s) + CO2(g)

That is option D.

<h3>Properties of a decomposition reaction</h3>

A chemical reaction is defined as the combination of substances called reactants to form a product. The various types of chemical reaction include:

synthesis reaction

combustion reaction

decomposition reaction

single or double replacement reaction

Decomposition reaction is that type of chemical reaction in which the reactant breaks down to form two or more products.

Therefore the heating of lead (II) carbonate is a decomposition reaction.

Learn more about decomposition reaction here:

brainly.com/question/15229375

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How different isotopes of Helium are similar and different.

Margarita [4]

Answer:

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Explanation:

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3 years ago

Which temperature is the hottest, 200°C, 200°F or 200 Kelvin?

gogolik [260]

Answer:

200 °C

Explanation:

Let’s convert all the temperatures to the same scale, say, Celsius.

Celsius

Water boils at 100 °C, so 200 °C is the temperature of superheated steam.

Fahrenheit

Water boils at 212 °F, so 200 °F is just below the boiling point of water.

$C = \frac{5 }{ 9}(F-32)$

$C = \frac{5 }{ 9}(200-32) = \frac{5 }{ 9}\times168 = 93 ^{\circ}\text{C}$

Kelvin

Standard temperature is 0 °C = 273.15 K. Ice melts at 273.15 K (0 °C), so

200 K is well below the melting point of ice.

C = K – 273.15

C = 200 -273.15 = -73 °C

Thus, 200 °C is the hottest temperature.

3 0

3 years ago

A proton transfer reaction can occur when a carbonyl compound is placed in an aqueous acidic solution. Water and a charged conju

madam [21]

Answer:

refer attachment

Explanation:

The diagrams has been made in the attachment section. Please refer.

3 0

3 years ago

Eugen Goldstein discovered in 1886 that atoms also have _________ charges.

Dvinal [7]

The correct answer for the question that is being presented above is this one: "b. positive" Eugen Goldstein discovered in 1886 that atoms also have positive charges. He was a German physicist and an early investigator of discharge tubes. He also discovered the anode rays.

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3 years ago

What characteristics are shared by all alkali metals and alkaline earth metals?

serious [3.7K]

Answer:

All alkali and alkaline earth metals dissolves in water to form alkaline solutions.

Explanation:

The alkali metals are found in group one of the periodic table while the alkaline earth metals are found in group 2. These two groups of elements are quite reactive and they react very well with air and water. All the elements in the two groups react with water to give rise to alkaline solutions; solutions whose pH range from 8 to 14.

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4 years ago