CHEMISTRY HIGH SCHOOL

A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found?(1) Group 1 (3) Group 16
(2) Group 2 (4) Group 17

Answers

Answer 1
Answer:

The oxidation state of an element is calculated by subtracting and the total sum of oxidation states of all the individual atom (excluding the one that has to be calculated) from total charge on the molecule. Option (1) is correct option.

What is oxidation state?

Oxidation state of an element is a number that is assigned to an element in a molecule that represents the number of electron gained or lost during the formation of that molecule or compound. Oxidation state is a unitless quantity.

Oxidation state of M in M₂O is:

Let oxidation state of M be X

Oxidation state of Oxygen is -2

Overall charge on the molecule is 0

so 2X+(-2)=0

X=+1

So from here we can see that oxidation state of M is +1 which is possessed only by group 1 element

Hence option (1) is correct option.

To learn more about Oxidation state, here:

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Answer 2
Answer: Because the compound has a formula of M2O, the number of valence electrons of M should be 1. 

Therefore, (1) Group 1 is the correct answer because elements in group 1 have 1 valence electron.

Hope this helps~

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. As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease inatomic mass
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Answers

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A 6.00 L vessel is filled with 1.00 mole each of NH₃, N₂, and H₂. Given the following data... with a calculation of the reaction will go in order to reach equilibrium. You must support your choice

Answers

4365 that’s what the answer is

Final answer:

The reaction will proceed in the forward direction to reach equilibrium.

Explanation:

To determine which reaction will go in order to reach equilibrium, we need to compare the initial number of moles of reactants to the stoichiometric coefficients of the balanced equation. The balanced equation for the reaction between NH₃, N₂, and H₂ is:

NH₃ + N₂ ↔ 2NH₃

Since the initial number of moles of NH₃, N₂, and H₂ are the same (1.00 mole each), the reaction will proceed in the forward direction to reach equilibrium.

Learn more about Equilibrium here:

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1. What kind of diagram shows how energy flows from one organism to another?a. producer c. consumer
b. ecology d. food chain

Answers

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Define the term ''pH' stand for?

Answers

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Can someone show me a step by step with the answer?

Answers

Answer:

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Explanation:

(I'm an AP chemistry student but not perfect at this stuff)

you can use the Molarity=Moles/L equation here:

(6M)=(moles HCl)/(1L)

divide by 1 on both sides to isolate the moles of HCl

this gets you 6 moles HCl.

Again I'm just a student so my answer might be wrong, but this question should just require the M=mols/L equation :).

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Answers

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