All categories

3 years ago

What are the 4 different types of chemical reactions? And how to remember them

Chemistry

2 answers:

Tju [1.3M]3 years ago

4 0

Synthesis, decomposition, single replacement and double replacement.

finlep [7]3 years ago

3 0

Adding on to C5h11no2, examples of the 4 chemical reactions are..
Synthesis A+B= AB (the two elements combine)
Decomposition: AB= A+B (the two elements breakdown)
Single Replacement: AB+C=AC+B (An element is switched with another from the reactant to the product)
Double Replacement: AB+CD=AC+BD (Both elements are switched with another from the reactant to the product)

You might be interested in

1. A rock with a mass of 66.5g occupies 23.0 cm. Density?

telo118 [61]

Answer:

2.89 g/cm^3

Explanation:

Since density equals mass over volume (or also seen as $d=\frac{m}{v}$ ), simply divide 66.5 grams by 23.0 cm. This will output an answer of 2.89 g/cm^3.

7 0

3 years ago

Mazyrski [523]

$1) {ca}^{2 + } = cation \\ {br}^{2 - } = anion$

7 0

3 years ago

Read 2 more answers

Evaluate the Lewis structures below and pick the statements that best describes the accuracy of each of the structures. There ma

Artyom0805 [142]

Answer:

The structures shown by dots and lines to give the exact number of electrons in the outer most shell is explained by Lewis Structures.

Explanation:

Lewis structures are those structures in which the diagram is shown using the electron representation. They are easy to understand as the diagram completely depicts where the electrons are shared and where they are transferred. The diagram also explains where there is a single bond and where there is a di covalent bond or tri covalent bond explaining where the single , double or triple electron pair is shared. The electrons are shown by dots or lines.

For example CCl₄ can be shown as follows

.. Cl..

.. ..

..Cl..----------C----------..Cl..

.. Cl..

The picture shows that each chlorine has six electrons in its outer shell and then a pair of electron is shared with carbon forming a single covalent bond.

Similarly methane CH4 can also be shown.

The hydrogen has one electron and it shares an electron from carbon stabilising itself forming methane.

6 0

3 years ago

What is the range for the following set of scores? Scores:6, 12, 9, 17, 11, 4, 14

MrRissso [65]

This is the answer is 17

5 0

3 years ago

A gas occupies 2.0 m3 at 100.0k and exerts a pressure of 100.0kPa. What volume will the gas occupy if the temperature is increas

Svetradugi [14.3K]

According to ideal gas equation, we know for 1 mole of gas: PV=RT
where P = pressure, T = temperature, R = gas constant, V= volume
If '1' and '2' indicates initial and final experimental conditions, we have
$\frac{P1V1}{P2V2} = \frac{T1}{T2}$

Given that: V1 = 100.0 kPa, T1 = 100.0 K, V1 = 2.0 m3, T2 = 400 K, P2 = 200.0 kPa

∴ on rearranging above eq., we get V2 = $\frac{P1V1T2}{T1} = \frac{100 X 2 X 400}{200X100}$
∴ V2 = 4 m3

7 0

3 years ago