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2 years ago

The chemical formula for cesium oxide is Cs2O. What is the charge of cesium? +1 +2 –1 –2

Chemistry

2 answers:

Luda [366]2 years ago

8 0

Answer:

The correct answer, the charge of Cesium is +1

Explanation:

Hi!

Let's solve this!

The compound is: Cs2O.

We know that the oxygen valence number is -2.

We also know that the compound has to be balanced, so to balance the charges we need +2. As there are two Cs, we perform the following operation:

2 * (+ 1) -2 = + 2-2 = 0

We conclude that the correct answer, the charge of Cesium is +1

aalyn [17]2 years ago

5 0

The Charge Of Cesium Is +1

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The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to span a distance of 1.74 mm

Darya [45]

Answer:

6960000 Nickel atoms

Explanation:

radius = 125 pm = 125 x 10^-12 m

diameter of each atom = 125 pm x 2 = 250 pm = 250 x 10^-12 m

span of distance to be achieved = 1.74 mm = 1.74 x 10^-3 m

number of nickel atoms = (1.74 x 10^-3 m)/(250 x 10^-12 m) = 6960000 Nickel atoms

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2 years ago

Describe the many different forms of energy involved with stretching and releasing a rubber band. What other processes are simil

Nadya [2.5K]

Answer:

Conversion of kinetic energy to potential energy (chemo mechanical energy)

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2 years ago

Read 2 more answers

Choose the molecule(s) that will only show two signals, with an integration ratio of 2:3, in their 1H NMR spectrum.

mrs_skeptik [129]

The question is missing the molecules in which the integration ratio of 2:3 will be observed. The complete question is given in the attachment.

Answer:

Molecule (a), (c), and (f) will show two peaks with the integration ratio of 2:3 in their 1H NMR spectrum

Explanation:

In the 1H NMR spectrum, the peak area is dependent on the number of hydrogen in a specific chemical environment. Hence, the ratio of the integration of these signals provides us with the relative number of hydrogen in two peaks. This rationale is used for the assignment of molecules that will give 2:3 integration ratio in the given problem.

Molecule (a) have two CH₂ and three CH₃ groups. Hence, it will give two peaks and their integration ratio becomes 2:3 (Answer)
Molecule (b) contains three chemical environments for its hydrogen atoms
Molecule (c) have a single CH₂ and CH₃ group giving integration ratio of 2:3 (Answer)
Molecule (d) will give two peaks but their ratio will be 1:3 because of two hydrogens of CH₂ and six hydrogens from two CH₃ groups
Molecule (e) have three CH and three CH₃ groups, so their ratio will become 1:3
Molecule (f) contains four CH and two CH₃ groups, giving two peaks. So, the integration ratio of their peaks is 2:3 (Answer)
Molecules
(g)
and
(h)
both have two CH and two CH₃ groups giving two peaks with the integration ratio of 1:3

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2 years ago

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Scorpion4ik [409]

Answer:

In the attachment you can find all the possible chemical reactions.

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Explanation: