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3 years ago

Write an equation that shows the formation of a potassium ion from a neutral potassium atom

1 answer:

7 0

Metals usually donates electrons. The concept behind this phenomenon is stability. The elements with the most stable electronic configuration are the noble gases in Group 5A. As a result, the other elements donate or accept electrons so that they would be like the noble gases. Since metals are past their nearest noble gas element, they have to shed their electrons. When they do, they become cations which are positively charged ions.

K → K⁺ + e⁻
where e is an electron donated

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Observe Record the appearance (colors,

wariber [46]

Answer:

Explanation:

3 0

3 years ago

Read 2 more answers

How many grams of carbon dioxide are produced when 16.0

Kobotan [32]

Mass of CO₂ = 33 g

<h3>Further explanation </h3>

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O

Reaction

CH₄ + 2O₂⇒CO₂ + 2H₂O

mol CH₄ :

$\tt =\dfrac{16}{16}=1$

mol O₂ :

$\tt =\dfrac{48}{32}=1.5$

A method that can be used to find limiting reactants is to divide the number of moles of known substances by their respective coefficients

$\tt CH_4:O_2=\dfrac{1}{1}:\dfrac{1.5}{2}=1:0.75$

Because O₂ ratio smaller then O₂ becomes the limiting reactants

So mol CO₂ from limiting reactants

mol CO₂ :

$\tt \dfrac{1}{2}\times 1.5=0.75$

mass CO₂ :

$\tt mass=mol\times MW=0.75\times 44=33~g$

7 0

3 years ago

Read 2 more answers

1. the smallest complete unit of a compound or diatomic gas shell

kogti [31]

Answer:

Explanation:

1. The smallest complete unit of a compound or diatomic gas

ATOM

Atoms are small tiny particles that makes up a molecule. It is regarded as the smallest indivisible particle that parts in a chemical reaction.

2. A new substance formed by the combination of two or more different atoms

COMPOUNDS

Compounds are substances composed of two or more kinds of atoms. Their properties differs from those of the constituent elements that combines to make them up.

3. Path of electrons around an atomic nucleus

SHELL

The shell describes the path of an electron round a nucleus

4. A substance consisting of only one type of atom

MONOATOMIC MOLECULE

It is an aggregate of one type of atom.

5 0

4 years ago

The formulas for ethane, ethene, and ethyne are C 2 H 6 C2H6 , C 2 H 4 C2H4 , and C 2 H 2 C2H2 , respectively. Rank these compou

Anuta_ua [19.1K]

Answer:

Ethane (1.09 A) > Ethene(1.076 A) > Ethyne(1.06 A)

Explanation:

The types of bonds present are:

a) Ethane : single bond

b) Ethene : double bond (one sigma one pi)

c) Ethyne: triple bond (one sigma and two pi bonds)

More the number of bonds lesser the bond length.

Thus the order of bond length of carbon-carbon bond will be:

Ethane (1.09 A) > Ethene(1.076 A) > Ethyne(1.06 A)

6 0

4 years ago

Phosphorus-32 has a half-life of 14.3 days. how many grams of phosphorus-32 remain after 71.5 days if you start with 4.00 grams?

almond37 [142]

Answer : 0.125 g

Explanation : If you are calculating the half life of P-32 which has half life of 14.3 days and you want to calculate how many grams are remaining after 71.3 days if yo are starting with 4 g?

starting you can calculate the number of half life P-32 undergoes first,

which is n = 71.5 / 14.3 = 5 days.

now, to calculate the remaining mass,

$m_{remaining} = (\frac{initial mass}{2 X 2X 2X2 X2 } ) = (\frac{initial mass}{ 2^{5} } )$

= $= \frac{4 g }{ 2^{5} } = 0.125 g$

7 0

3 years ago