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3 years ago

How does the activity series of metals tell which reactions will occur?

Chemistry

1 answer:

Helga [31]3 years ago

6 0

C. Metals higher in the series will replace metal ions in solution that

are lower in the series.

Explanation:

The activity series of metals shows the extent of reactivity of different metals.

On the activity series, the most reactive metals are located higher up on the able whereas the less reactive ones are found at the bottom of the series.

We can tell if single displacement reactions will occur by simply looking at the reactivity series.
Metals that are more reactive will displace the ones that are not very reactive that are positioned down the series. Such a reaction will occur.
Metals lower in the series cannot displace the ones on top because they are less reactive. Such a reaction will not occur.

Learn more:

Precipitation reaction brainly.com/question/7035326

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How many neutrons and protons (nucleons) does an atom with

mezya [45]

Answer:

Explanation:

None of the above

The atom with the symbol S is called sulphur Sulphur has atomic number 16 which means that it has 16 protons. Sulphur-32 has 32 nucleons - 16 protons and 16 neutrons.Sulfur is a chemical element It is nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature.

4 0

3 years ago

Which metal was more reactive in water? How do you know?

Rom4ik [11]

Answer:

alkali metals

Explanation:

they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.

6 0

3 years ago

Read 2 more answers

If the frequency of a wave is 68 hertz then the period of the wave is going to be

tigry1 [53]

The answer is 4.41x10^1 m.

Explanation:

You would use this formula to calculate it
λ = C/f

Where,

λ (Lambda) = Wavelength in meters

c = Speed of Light (299,792,458 m/s)

f = Frequency

So we have the frequency, 68 Hz, and we have the speed of light. Now we put it into the equation and it will look like this:

λ= (299,792,458 m/s) / (68 Hz)

λ= 4.41x10^1

6 0

3 years ago

Read 2 more answers

The overall cell reaction occurring in an alkaline battery isZn(s) + MnO₂(s) + H₂O(l) → ZnO(s) + Mn(OH)₂(s) (e) In practice, vol

zubka84 [21]

b) Mass of MnO₂ = 5.981 g

Mass of H₂O = 1.2384 g

c) Total Mass of Reactant consumed = 11.708 g

b) Given Reaction

Zn(s) + MnO₂(s) + H₂O(l) → ZnO(s) + Mn(OH)₂(s)

Mass of Zn = 4.50 g

Moles of Zn = 0.0688 moles

Now,

Moles of Zn = moles of MnO₂ = moles of H₂O = moles of ZnO = moles of Mn(OH)₂

Hence ,

Moles of MnO₂ = 0.0688 moles

Mass of MnO₂ = 0.0688 × 86.9368 g

= 5.981 g

Similarly,

Moles of H₂O = 0.0688 moles

Mass of H₂O = 0.0688 × 18 g

= 1.2384 g

c) now ,

Moles of ZnO = 0.0688 moles

Mass of ZnO = 0.06880× 81.3794 g

= 5.598 g

Moles of Mn(OH)₂ = 0.0688 moles

Mass of Mn(OH)₂ =0.0688 × 88.952 g

= 6.11 g

Total mass of Product = 11.708 g

Total Mass of Reactant = 11.715 g

Hence,

Total mass of reactant consumed = 11.708 g

c) As total mass of reactant is more than that of mass of reactant consumed , Hence G is more than that of mass of reactant consumed .

G = - nFEcell

and no. of moles of reactant is greater than that of number of moles of reactant consumed .

Hence voltaic cell of given Capacity are heavier than that of mass of reactant consumed .

Thus from above conclusion we can say that , Mass of the reactant consumed is 11.708 g.

Learn more about Galvanic Cell here : brainly.com/question/19340007

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3 0

2 years ago

How many H atoms in 12H2O?

Ilya [14]

Answer:

24 atoms of H or 1.4 x 10²⁵ hydrogen atoms

Explanation:

simple method

1 H₂O has atoms of hydrogen and 1 atom of oxygen

while 12H₂O will have 24 atoms of hydrogen and 12 atom of oxygen

by Avagadros number

molar mass of water H₂0=18.01528 g/mol

1 mole of H₂0 have 2 moles of Hydrogen

one mole of water= 6.02⋅10²³water molecules =1.2 x 10²⁴hydrogen atoms

12 mole of H₂O = 1.2 x 10²⁴ x 12= 1.4 x 10²⁵ hydrogen atoms

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1.4 x 10²⁵ hydrogen atoms in 12 moles of H₂O

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3 0

3 years ago