Which type of chemical reaction does this equation exemplify?

Answers

Answer 1

Answer: The chemical reaction that this equation exemplifies is Double Replacement. As in a double replacement reaction, the atoms of the compounds are switched and are displaced with other atoms of their respective elements to form new compounds.

Answer 2

Answer: combustion is the chemical reaction

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What is the golden rule of solubility?

Answers

like disolves like is the golden rule

Like dissolves like I believe

Why does a high temperature have to be used to weld pieces of metal together

Answers

because of the metling point of metals, it is difficult to just simply put metal together and have them to stay together without any type of glue or epoxy based creams.

wielding is used to melt the surface or even change the compound completely so they are able to combine with other metals.

same thing with atoms, you need a lot of heat, and speed to simply make salt or even copper because of the elements not really being favorable of each other.

Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3

Answers

The compound Na2S or Sodium sulfide is soluble inwater. This compound is a water-soluble salt that give strong alkalinesolutions. When exposed to air or humidity this compound gives-off hydrogen sulfidethat smells almost the same as rotten eggs.

This chemical is commonly used in the pulp andpaper industry. Sodium sulfide compounds are usually used in chemicalphotography, textile bleaching, making dyes, and even detergents.

The other 3 compounds are non-soluble in water. Theircompositions are mostly metal in nature and require other process to transformthem into different compound forms.

Answer;

(3) Na2S

Explanation;

All sodium salts are soluble in water. Therefore, sodium sulfide will be soluble in water.
All sodium, potassium, and ammonium salts are soluble in water. The chlorides, bromides, and iodides of all metals except lead, silver, and mercury are also soluble in water.
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water.

An electric current is conducted by what?

Answers

An electric current is conduced by the solution of NaCI

I hope that's help !

Muscles perform what type of energy transformation?

Answers

Muscles perform energy transformation from chemical energy to kinetic energy which is very evident as we do our day to day activities. Hope this answers the question. Have a nice day. Feel free to ask more questions. Thank you.

The process of evaporation describes which of the following changes of state?solid ➡ liquid
gas ➡ solid
liquid ➡ gas
solid ➡ gas

Answers

The change in state from Liquid ➡ gas describes the process of evaporation.

Other Questions

Einstein’s Theory of Relativity was built on the research and ideas of other scientists. The Theory of Relativity proposes that the speed of light is a constant. Which of the following statements explains why this is considered to be a scientific theory?

Please help brainiest.

Calculate freezing temperature of.5 M sodium chloride solution. Assume that the molality of each solution is .5 Ma. -.93 Celsiusb. -1.86 Celsiusc. -3.72 Celsiusd. -.538 Celsius

a cylinder with a moveable piston contains 0.553 mol of gas and has a volume of 253 ml. what is its volume if has 0.365 mol of gas in the cylinder. (assume constant temperature and pressure.)