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Ksju [112]
3 years ago
10

For which type if reaction must you use an activity series to predict the results

Chemistry
1 answer:
Paha777 [63]3 years ago
5 0

Single replacement or single displacement reactions

Explanation:

In a single replacement or displacement reaction, the activity series is useful in predicting whether the reaction will take place or not.

  • In this reaction type, one substance is replacing another.

                 C + DE → CD + E

  • The relative positions of the two elements in the activity series provides the driving force for the single replacement reaction.
  • An element high up in the series will displace one that is lower in the series because it is more reactive.

Learn more:

Chemical reactions brainly.com/question/3953793

#learnwithBrainly

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Given that an electromagnetic wave is generated by an oscillating electron, how are the frequency of the wave and the oscillatio
Alexeev081 [22]

Answer: The frequency of the electromagnetic wave is equal to the oscillation frequency of the electron is the correct option.

Explanation:

Electromagnetic waves are created by oscillating charges. Frequency of waves and oscillation of electron both are the same. Electromagnetic waves are always move perpendicular to the direction in which the wave moves.

3 0
3 years ago
The brass cube has a mass of 67.2 grams. Each side is 2 cm long. What is the density of the brass cube? A) 2.8 g/cm 3 B) 3.15 g/
frutty [35]
The answer is  D. 9.45 g/cm
4 0
2 years ago
a 20.5g sample of cleaning detergent contains 8.61g of NH40H.CALCULATE the percentage composition of nitrogen in the cleaning de
AysviL [449]

Answer:

The mass percentage composition of nitrogen in the sample of the cleaning detergent is approximately 16.78%  

Explanation:

The given mass of the sample of the cleaning detergent, m₁ = 20.5 g

The mass of the ammonium hydroxide, NH₄OH in the detergent, m₂ = 8.61 g

The molar mass of NH₄OH = 35.04 g/mol

The molar mass of nitrogen, N = 14.01 g/mol

Therefore, the mass, m₃ of nitrogen, N, in 8.61 g of ammonium hydroxide, NH₄OH, is found as follows;

m₃ = (14.01/35.04) × 8.61 g = (402,087/118,800) g ≈ 3.44 g

The mass of nitrogen, N, in the ammonium hydroxide, NH₄OH, contained in the 20.5 g sample of the cleaning agent, m₃ ≈ 3.44 grams

The percentage composition of nitrogen in the sample of the cleaning detergent, %N is given as follows;

\% Composition = \dfrac{Mass \ of \ component}{Total \ mass \ of \ cleaning \ detergent} \times 100

Therefore;

%N ≈ ((3.44 g)/(20.5 g)) × 100 ≈ 16.78 %

The percentage composition of nitrogen, %N ≈ 16.78%.

6 0
3 years ago
Apples reproduce naturally by sexual reproduction.How does this explain why there are many types of apples be sure to use use me
kvasek [131]

Answer:

could be a that the apple produced a seed with genetic mutation in chromosome during the process meiosis.

Explanation:

6 0
3 years ago
How many moles of atoms are in 7.00 g of 13c? express your answer numerically in moles?
Nadusha1986 [10]
Molar mass of 13c = 13 grams
number of moles = mass / molar mass
therefore,
number of moles = 7 / 13
To know the number of atoms in 7/13 moles, we simply multiply the number of moles by Avogadro's number as follows:
number of atoms = (7/13) x 6.022 x 10^23 = 3.2426 x 10^23 atoms
3 0
3 years ago
Read 2 more answers
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