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2 years ago

I NEED HELP ASAP!!!! ITS DUE IN A FEW MINUTES!!!!

Chemistry

1 answer:

OleMash [197]2 years ago

6 0

Answer:

The Sun and the planets were born from a cloud of gas and dust called the solar nebula 4.6 billion years ago. The collapse of the solar nebula was most likely triggered by a shock wave from a nearby supernova explosion. The Sun formed in the center, with the planets surrounding it in a thin disk.

Explanation:

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How many moles of O2 should be supplied to burn 1.82 mol of C3H8 (propane) molecules In a camping stove?

pashok25 [27]

C3H8 + 5O2 ------> 3CO2 + 4H2O

from reaction 1 mol 5 mol

given 1.82 mol x mol

x=(1.82*5)/1 = 9.10 mol CO2

4 0

2 years ago

Identify the single displacement reaction.

pishuonlain [190]

Answer : The correct option is, (D)

Explanation :

Option A reaction : $C_4H_{12}+7O_2\rightarrow 6H_2O+4CO_2$

It is a combustion reaction. A reaction in which a hydrocarbon react with the oxygen to give product as carbon dioxide and water.

Option B reaction : $2H_2+O_2\rightarrow 2H_2O$

It is a combination reaction. A reaction in which the two or more reactants react to give a product.

Option C reaction : $Al_2S_3\rightarrow 2Al+3S$

It is a decomposition reaction. A reaction in which a reactant decomposes to form two or more products.

Option D reaction : $Cl_2+2KBr\rightarrow 2KCl+Br_2$

It is a single displacement reaction. It is a reaction in which the more reactive element displace the less reactive element. In this reaction, most reactive element chlorine displaces the less reactive element bromine.

Hence, the correct option is, (D)

3 0

3 years ago

Read 2 more answers

What environment will produce the largest crystal sizes?

VMariaS [17]

The pressure should be low as low pressure can melt the crystals easier way
According to Gay lussac's law pressure is directly proportional to temperature so temperature should be also low as it's general any thing need to be cooled down inorder to get crystallised
Now for amount of dissolved solids the solution should be super saturated like magma .It denotes that the particles present as solute must be greater than the solubility.
Cooling time also should be long inorder to give time to crystallization

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1 year ago

Why can two igneous rocks that have the same minerals but different names?

photoshop1234 [79]

C. the rock may have diferrent textures

7 0

3 years ago

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Cuantos moles de CO2 se requieren para reaccionar con 2 moles de Ba (OH)2

EastWind [94]

Answer:

hola soy jess, tu respuesta esta aqui

¿cuantos moles de CO2 se requiere para reaccionar 2 moles de Ba(OH)2

2 mol Ba(OH)₂ × \frac{1molCO_{2} }{1molBa (OH)_{2}}

1molBa(OH)

1molCO

= 2 moles CO₂

Explanation:

espero que pueda ayudarte

hermana/hermano

lo que

hahahaha

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2 years ago