Which salt is most soluble at 10°C?

Strong acids are those that ionizes almost completely in water. to be considered a strong acid, an acid must have an acid ioniza

quester [9]

Ka is the equilibrium constant for the ionization for a reaction. It is calculated as follows
ka is equal to (H3o ions)(A-) divided by (HA)
2.00x106i s equal to 0.153x0.153 divided by ( HA)
(2.00x106)HA is equal to 0.023409
HA concentration is therefore equal to 0.023409/2.00x106 which is 1.104x10^-4moles/litre

8 0

4 years ago

A sentence where kinetic energy of matter and temperature are both explained

Alona [7]

For me to explain this clearly, you will need to refer to a heating curve graph in google.

If you refer to the graph, when a temperature is constant, the average kinetic energy also remains constant.

But when the temperature rises, the average kinetic energy also increases.

This is because when temperature increases, the particles are getting further from each other which when they are moving further, their kinetic energy increases. Thus, whenever there is an increase or decrease in temperature, it in turns increases or decreases average kinetic energy.

8 0

4 years ago

Which of these resources are renewable? Check all that apply. natural gas wind minerals forests tides geothermal energy

PolarNik [594]

Here is a list of some renewable resources, I hope these help answer the question, or help to answer it.

-ethanol

-hydropower

-geothermal power

-wind energy

-solar energy

-biomass

(Biomass refers to organic material from plants and animals)

4 0

3 years ago

Metals react with oxygen to give oxides with the general formula MxOy. What is a balanced chemical equation for the reaction of

katovenus [111]

Answer: $4Fe+3O_2\rightarrow 2Fe_2O_3$

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here iron is having an oxidation state of +3 called as $Fe^{3+}$ cation and oxide $O^{2-}$ is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $Fe_2O_3$ .

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$2Fe+3O_2\rightarrow 2Fe_2O_3$