What is a solid formed from liquid reactants during chemical reaction

Answers

Answer 1
Answer: A solid formed from liquid reactants chemical reactions is called a precipitate.
Answer 2
Answer: It is called a precipitate. Precipitates allow you to determine many things about a chemical reaction (that you will get to know in high school).

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Which of the following is a solution: pure water, fruit punch, cereal and milk in a bowl? Explain how you know.
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Which element melts at room temperature?
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The melting point of table salt is 801 degrees celsius. is this a physical or chemical property?

Answers

It is a Physical property because like water it changes into a ice cube but it can be melted into water or be turned back into an ice cube.

A visible streak of light that shows the path of a rocky object which has entered Earth’s atmosphere is

Answers

Answer:

A visible streak of light that shows the path of a rocky object which has entered Earth’s atmosphere is Meteor.

Explanation:

Meteors are the dust and ice originated from the trails of comets. They are the rocks present in the space, the visible bright streak is not from the rock, rather from the glowing hot air because of the hot rock zips from the atmosphere. When large number of the meteoroids strikes the Earth at one time is called meteor shower. It is the open- source isomorphic rocks. These are visible from the one point in the dark sky. These happens due to the masses of cosmic debris known as meteoroids which are coming inside the Earth's atmosphere at extremely great speed on parallel trajectories.    

You can put out a chip pan fire by putting a damp cloth over the pan. Explain why this works.

Answers

Placing a damp towel on the chip pan fire will stop the oxygen from getting to flames, so the fire will smother out.

What type of reaction does the following equation represent?FeS+2HCl→FeCl2+H2S
A. synthesis reaction
B. double-displacement reaction
C. single-displacement reaction
D. decomposition reaction

Answers

Answer:

B. double-replacement RXN

Explanation:

more specifically, this is a precipitation rxn.

Double-displacement because two elements are getting exchanged by the compounds. It is also a precipitation reaction because there seems to be an insoluble aqueous product.

What is the main difference between an internal combustion engine and an external combustion engine?1)The burning of fuel occurs inside the cylinder with the piston in an external combustion engine.

2)An internal combustion engine doesn't have a cylinder and a piston.

3)The burning of fuel occurs inside the cylinder with the piston in an internal combustion engine.

4)An external combustion engine doesn't have a cylinder and a piston

Answers

Answer: The correct answer is option (3).

Explanation:

Internal combustion engine: An engine which generates motive power by burning the fuel with air inside the engine. Heat produced is used to move piston or to perform other work as they expand.

External combustion engine : An engine where motive power is generated by providing the heat to the fluid present inside the engine from the external source. Here combustion of the fuel is not inside the engine.

Hence,the correct answer is option (3).

The answer is 3) The burning of fuel occurs inside the cylinder with the piston in an internal combustion engine.

Explanation: I took the test :)

A certain unknown compound burns with a violet flame. What metal is present in the unknown compound? What is the evidence?

Answers

Answer:

Potassium Compounds.

Explanation:

Potassium compounds give a violet flame when heated in a flame; this can be viewed through a blue cobalt glass.

If you are not sure, try a known compound to see what the flame color looks like.

Be sure the wire is clean and fairly free from color before testing your unknown.