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Semmy [17]
3 years ago
12

HELP 50 POINTS WILL BE AWARDED I need 3-5 sentences that explains the importance of reaction types (combustion decomposition syn

thesis single/double replacement) in determining products
Chemistry
1 answer:
Fofino [41]3 years ago
6 0

Explanation:

Combustion reaction: Type of a chemical reaction in which compound and an oxidant reacts together to form a new product with release of an energy in the form of heat.

Decomposition reaction: Type of a chemical reaction in which compound breaks down into two or more elements or into new compounds.

ABC →  A + B + C

Synthesis reaction: Type of a chemical reaction in which two or more than two reactant reacts together to form a single product.

A + B + C  →  ABC

Single replacement reaction: Type of a chemical reaction in which element reacts with a compound and takes the place of another element in the compound.

A + BC → BA + C

Double replacement reaction: Type of chemical reaction in which two compounds reacts is such a way that the cations and anions of the compounds exchange their places to form new products.

AB + CD  →  AD + CB

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ziro4ka [17]

Answer:

normal blood pressure?

or is it something else

3 0
3 years ago
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What expression approximates the volume of O2 consumed, measure at STP, when 55 g of Al reacts completely with excess O2?2 Al(s)
nikdorinn [45]

Answer : The volume of O_2 consumed are, 0.75\times 2\times 22.4 L.

Explanation :

The balanced chemical reaction will be:

4Al(s)+3O_2(g)\rightarrow 2Al_2O_3(s)

First we have to calculate the moles of Al.

\text{Moles of }Al=\frac{\text{Mass of }Al}{\text{Molar mass of }Al}

Molar mass of Al = 27 g/mole

\text{Moles of }Al=\frac{55g}{27g/mol}=2mole

Now we have to calculate the moles of O_2.

From the reaction we conclude that,

As, 4 mole of Al react with 3 moles of O_2

So, 2 mole of Al react with \frac{3}{4}\times 2=0.75\times 2 moles of O_2

Now we have to calculate the volume of O_2 consumed.

As we know that, 1 mole of substance occupies 22.4 liter volume of gas.

As, 1 mole of O_2 occupies 22.4 liter volume of O_2 gas

So, 0.75\times 2 mole of O_2 occupies 0.75\times 2\times 22.4 liter volume of O_2 gas

Therefore, the volume of O_2 consumed are, 0.75\times 2\times 22.4 L.

3 0
3 years ago
Why would someone need to find the relative density of an object?
Ede4ka [16]

Answer:

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float. An object that has a higher density than the liquid it's in will sink. An object that has a lower density than the liquid it's in will float.

Explanation:

Hope it helps!

8 0
2 years ago
Estructura correcta de los siguientes compuestos e indique si el nombre está escrito de forma correcta; 1,4-ciclohexadieno
Makovka662 [10]

Answer:

En la imagen adjunta.

Explanation:

¡Hola!

En este caso, dados los lineamientos IUPAC que tenemos en cuenta para dibujar la estructura de hidrocarburos cíclicos, para el 1,4-ciclohexadieno, es posible determinar que esta estructura viene dada por hexágono que representa el ciclohexano y dos dobles enlaces en los carbonos 1 y 4 al ser un dieno. Por lo anterior, en la imagen adjunta, puede encontrar la estructura requerida.

¡Saludos!

5 0
3 years ago
Which of the following is required to change the state of matter?
nignag [31]
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