CHEMISTRY HIGH SCHOOL

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Answer 1

Answer:

Answer:F =MAX

Explanation:I did that

Answer 2

Answer:

Answer:

F=MAX

Explanation:

I DID THAT TODAY AT 9:05AM FRIDAY 1/22/2021

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water is mixed with solid calcium nitrate in a beaker. write balanced net ionic equation for the reaction

Answers

When calcium nitrate is added or mixed with water, the substance would dissociate into its corresponding ions which are calcium and nitrate ions. The ionic equation would be:

Ca(NO3)2 = Ca2+ + NO3-

Hope this answers the question. Have a nice day. Feel free to ask more questions.

Answer : The net ionic equation will be,

$Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)$

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced ionic equation will be,

$2H_2O(aq)+Ca(NO_3)_2(aq)\rightarrow 2HNO_3(aq)+Ca(OH)_2(s)$

The ionic equation in separated aqueous solution will be,

$4H^+(aq)+2OH^(-)(aq)+Ca^(2+)(aq)+2NO_3^(-)(aq)\rightarrow Ca(OH)_2(s)+2H^+(aq)+2NO_3^(-)(aq)$

In this equation, $H^+\text{ and }NO_3^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

$Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)$

Which compound contains a triple bond?

Answers

There are many compounds which contain triple bonds between two atoms. Few of the are as follow,

Nitrogen Molecule:

   N₂ or :N≡N:

Cyanide Ion:

  CN⁻ or [:C≡N:]⁻

Alkynes:
   R-C≡C-R

Carbon Monoxide:

CO or :C≡O:

Among given compounds Alkynes belong to a class of unsaturated hydrocarbons. The carbon atom in alkyne is sp hybridized. These unsaturated hydrocarbons have their own characteristic chemical properties.

Final answer:

A compound with a triple bond, like acetylene, is a molecule where three pairs of electrons are shared between two atoms. Acetylene contains a triple bond between its two carbon atoms. These bonds are strong, robust, and render unique properties to the compound.

Explanation:

A compound that contains a triple bond is a molecule in which three pairs of electrons are shared between two atoms, making it a very strong connection. An example of such a compound is acetylene (C2H2), which contains a triple bond between the two carbon atoms. The presence of triple bonds results in substances with unique properties when compared to compounds with only single or double bonds.

The triple bond in acetylene is formed by one sigma bond and two pi bonds. This means that acetylene is a more robust compound because of the strength of the triple bond. Additionally, molecules with triple bonds often have interesting chemical reactivities which make them important in various fields such as organic chemistry or industrial synthesis.

Learn more about Triple bond here:

brainly.com/question/35909332

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How to name alkane using iupac system

Answers

Naming an alkane through the IUPAC system is pretty simple
so all it is is (prefix for number of carbon) + ane
For the first four in this homologous series you have
Meth- 1 carbon
Eth- 2 carbons
Pro- 3 carbons
But- 4 Carbons
Onward you use the prefixes you know such as Pent, Hex, Hept, Oct, Non, Dec

So for an alkane with 3 Carbons it would be Propane, with 4 - Butane with 8- Octane etc.

Burning alcohol for fuel is a very efficient process. Please select the best answer from the choices provideda. True
b. False

Answers

Explanation:

Burning of alcohol produces different products as it depends on the type and nature of alcohol which is being burnt.

Some alcohols upon burning produce toxic gases or products whereas some alcohols on burning does not produce any toxic substances.

For example, when ethanol is burnt then it reacts with oxygen and results in the formation of water and carbon dioxide.

Thus, we can conclude that the statement burning alcohol for fuel is a very efficient process is a false statement.

Burning alcohol for fuel has been used throughout history. There are some alcohols that are the best ones to use as fuels because of their nature and can be synthesized chemicaly or biologicaly. Except, some of those alcohol also has a bad effect when burned for fuel as it would cause serious negative chemical effects when exposed to the human body such as blindness or death. Therefore, the best answer would be False.

What point were the authors of the Declaration trying to make in the Preamble?

HELP.

Answers

Answer:

To explain why they are revolting against the king

Explanation:

The energy required to completely separate the ions from a solid is(A) free energy
(B) lattice energy
(C) kinetic energy
(D) activation energy
(E) ionization energy