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qwelly [4]
3 years ago
5

Match the chemical Equation with his correct type

Chemistry
1 answer:
Alex3 years ago
7 0

Answer:

The answer to your question is given below

Explanation:

1. C. 2NaCl + I2 —> 2NaI + Cl2 => C. Single displacement.

From the above equation, we can see that I2 replaces Cl in NaCl to produce NaI. This is simply called a single displacement reaction.

2. E. 2C4H10 + 13O2 —> 8CO2 + 10H2O => E. Combustion.

The above equation shows the burning of Hydrocarbon in the presence of O2. This is simply called Combustion as CO2 and H2O is produced.

3. D 2H2O —> 2H2 + O2 => D. Decomposition.

From the above equation, we can see that a single compound H2O produces two elements H2 and O2. This is simply called a decomposition reaction.

4. A. ZnS + 2HCl —> ZnCl2 + H2S => A. Double Decomposition.

From the above equation, we can see that Cl replaces S in ZnS to produce ZnCl2 and S replaces Cl in HCl to produce H2S. This is simply called double displacement reaction.

5. B. H2 + Br2 —> 2HBr => B. Synthesis.

From the above equation, we can see that two element H2 and Br2 combine to produce a single compound HBr. This is simply called a synthesis reaction.

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Find the atoms of 52u of helium ​
AlekseyPX
<h2>~<u>Solution</u> :-</h2>

Here, we have been given the the amount of helium to be 52 amu.

Thus,

  • Atomic mass of Helium is 4u = 2 protons + 2
  • Neutrons = 1 atom.
  • No. of atoms in 52u = $ \sf{\frac{52}{4}}$ = 13 atoms.

$ \red{\leadsto}$ Hence, the number of atoms will be <u>13 atoms</u>.

\\

4 0
3 years ago
Read 2 more answers
7. Which particle diagram represents a mixture of three substances?"<br> Which option?
kozerog [31]

The particle diagram that represents a mixture of three substances is seen in Option 2.

A particle is a small portion of a matter that has both physical and chemical properties.

In inorganic chemistry, a substance refers to a form of matter ( usually particles) that can not be separated by ordinary physical means but by a chemical process.

It can either be:

  • an element or a compound.

From the information given, we have:

  • an atom of one element
  • an atom of a different element

Option 1, 3, and 4 show a particle diagram representing a mixture of only two substances but Only Option 2 shows a particle diagram representing a mixture of three substances.

Therefore, we can conclude that the particle diagram that represents a mixture of three substances is seen in Option 2.

Learn more about substances here:

brainly.com/question/24372098?referrer=searchResults

8 0
3 years ago
What is the molar mass of 1-butene if 5.38 × 1016 molecules of 1-butene weigh 5.00 μg?
xenn [34]
<h3>Answer:</h3>

             Molar Mass =  56 g.mol⁻¹

<h3>Explanation:</h3>

Data Given:

                   Mass  =  5.00 μg  =  5.0 × 10⁻⁶ g

                   Number of Molecules  =  5.38 × 10¹⁶ Molecules

Step 1: Calculate Moles of 1-Butene:

                      As we know one mole of any substance contains 6.022 × 10²³ particles (atoms, ions, molecules or formula units). This number is also called as Avogadro's Number.

The relation between Moles, Number of Particles and Avogadro's Number is given as,

                          Number of Moles  =  Number of Particles ÷ 6.022 × 10²³

Putting values,

                          Number of Moles  =  5.38 × 10¹⁶ Molecules ÷ 6.022 × 10²³

                          Number of Moles  =  8.93 × 10⁻⁸ Moles

Step 2: Calculate Molar Mass of 1-Butene:

As,

                          Mole  =  Mass ÷ M.Mass

Solving for M.Mass,

                          M.Mass  =  Mass ÷ Mole

Putting values,

                          M.Mass  =  5.0 × 10⁻⁶ g ÷ 8.93 × 10⁻⁸ mol

                          M.Mass =  55.99 g.mol⁻¹ ≈ 56 g.mol⁻¹

4 0
3 years ago
Physics 130 Metal detectors, like the ones used at airports, are activated by a. electric fields. b. magnetic fields. c. electro
bija089 [108]

Answer:

Option (C)

Explanation:

A metal detector is usually defined as an instrument that is commonly used to detect the presence of metals in the bags and luggage. It is very widely used in places like airports, railway stations, and other important official places.

This device is generally activated with the help of electromagnetic induction. It contains a single or numerous inducting coils which are connected to the elements placed on the ground surface. These used materials are metallic in nature. Within the region of the electromagnetic field, when any metallic substance enters, it immediately gains energy and thereby transmits an electromagnetic field of its own.

Thus, the correct answer is option (C).

5 0
3 years ago
Question 1 (1 point)<br> How many significant figures are in the number 2,000 ?
Flauer [41]

Answer:

One  

Explanation:

Trailing zeros in a number are not significant unless they follow a decimal point.

If you want to specify a different number of significant figures, you can use a decimal point.

For example,

     2.0 × 10³ = two significant figures

  2.00 × 10³ = three significant figures

2.000 × 10³ = four significant figure

        2000. = four significant figures

5 0
3 years ago
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