what is the cation called?

Answer:

Titanium(IV) Sulfide

Explanation:

Answer:

K = [HI]² / [H₂] [I₂]

Explanation:

To write the expression of equilibrium constant, K, it is important that we know how to obtain the equilibrium constant.

The equilibrium constant, K for a given reaction is simply defined as the ratio of the concentration of the products raised to their coefficient to the concentration of the reactants raised to their coefficient. Thus, the equilibrium constant is written as follow:

K = [Product] / [Reactant]

Now, we shall determine the equilibrium constant for the reaction given in the question above. This can be obtained as illustrated below:

H₂(g) + I₂(g) —> 2HI (g)

K = [HI]² / [H₂] [I₂]

Explanation:

cl2 = 50/71

mole of cl2 = 0.704

no.of molecules = mole × avagadro no.

no of molecules = 0.704× 6.022×10²³

no. of molecules = 4.23×10²³

Answer:

in my opinion I think is D you don't have to choose it

Answer:

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

Explanation:

Answer:

Explanation:

Silver nitrate grams to moles

1 grams Silver Nitrate is equal to 0.0058867472248402 mole

Answer:

pH is not been modified. No changes.

Explanation:

Our buffer is made of acetic acid, a weak one and the salt from its conjugate base, sodium acetate.

NaC₂H₃O₂ → Na⁺   +  C₂H₃O₂⁻

The acetate anion can make hydrolisis in water to produce acetic acid again.

C₂H₃O₂⁻  + H₂O  ⇄  C₂H₃O₂H + OH⁻     Kb

KCl is neutral salt. When we dissociate it:

KCl → K⁺  +  Cl⁻

Both ions come from a strong base and a strong acid. They won't make hydrolisis in water because they are conjugate weak acid and base

K⁺ + H₂O ← KOH + H⁺

Cl⁻ + H₂O ← HCl + OH⁻

These reactions can't be possible.

That's why it doesn't occur anything in our buffer, this salt does not give OH⁻ or H⁺ to medium to modify pH

Answer:

The new pressure of the gas is 1080 mmHg

Explanation:

The general equation provides a way to calculate the relationship between changesnp in volume, temperature and pressure of a given mass of gas.

The general gas equation is given as P1V1/T1 = P2V2/T2

Where P1 is initial pressure of gas

V1 is initial volume of gas

T1 is initial temperature of gas

P2 is final pressure of gas

V2 is final volume of gas

T2 is final temperature of gas

From the given question, P1 = 900 mmHg, V1 = 0.8 L, T1 = 400 K, P2 = ?, V2 = 0.5 L, T2 = 300 K

Making P2 subject of the general gas equations:

P2 = P1V1T2/V2T1

P2 = (900 × 0.8 × 300) / (0.5 × 400)

P2 = 1080 mmHg

Therefore, the new pressure of the gas is 1080 mmHg.

Explanation:

[tex]molar \: mass \: of \: iron = 56 \: g \\ 56 \: g\: are \: weighed \: by \: 1 \: mole \: of \: iron \\ 595 \: g \: will \: be \: weighed \: by \: ( \frac{595}{56} ) \: moles \\ = 10.625 \: moles \: of \: iron \\ from \: equation : \\ 1 \: mole \: of \: iron \: is \: formed \: by \: 1 \: mole \: of \: hydrogen \\ 10.625 \: moles \: will \: be \: produced \: by \: (10.625 \times 1) \: moles \\ = 10.625 \: moles \: of \: hydrogen \\ at \: s.t.p : \\ 1 \: mole \: = \: 22.4 \: litres \\ 10.625 \: moles \: = (22.4 \times 10.625) \\ = 238 \: litres \\ \\ or \: at \: r.t.p : \\ 1 \: mole \: = 24 \: litres \\ 10.625 \: moles \: = \: (10.625 \times 24) \\ = 255 \: litres[/tex]

Answer:

B) -1.00 M/min

Explanation:

Based on the reaction:

2 SO2(g) + O2(g) → 2SO3(g)

2 moles of SO2 are consumed per mole of O2 producing 2 moles SO3

In the problem, the sulfur dioxide has a rate of change of -2.00M/min. As the moles of oxygen that reacted are half the moles of SO2, its rate of change is halved, that is:

Answer:

The object is moving with uniform acceleration

Explanation:

Acceleration is defined as the change of speed with time. Hence, we define acceleration as ds/dt.

The slope of a speed/time graph gives us the acceleration of the moving object.

An object is said to move with uniform acceleration when the speed increases by equal amounts in equal time intervals as in the straight line speed/time graph shown in the question

C. 0.5

This is the answer.

(assuming that the D option is 1, if it is 0.1 then the answer is 0.1)

[tex]0.5[/tex]

Explanation:

As you know that decreasing in the concentration of OH- (i.e., 14, 13, 12, 11,..) makes to increase in the concentration of H+ ions (5,4,3,2,1).

Answer:

The role of consumers in an ecosystem is to obtain energy by feeding on other organisms and sometimes transfer energy to other consumers. Changes that affect consumers can impact other organisms within the ecosystem.

Explanation:

Hope this helped Mark BRAINLIEST!!!!

Consumers are organisms that obtain energy by eating other organisms. Consumers may consume either producers or other consumers. Consumers include animals.

A food chain is a network of links in a food web that begins with producer organisms and ends with an apex predator, detritivore, or decomposer species.

A food chain also demonstrates how organisms are related to one another through the food they consume. Each trophic level is represented by a different level of a food chain.

Producers can produce their own food and energy, but consumers are not the same. Consumers are living things that must hunt, gather, and eat their food.

Thus, Consumers must eat in order to gain energy, or they will perish. Omnivores, carnivores, herbivores, and decomposers are the four types of consumers.

To learn more about the food chain, follow the link;

https://brainly.com/question/16065961

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Answer:

a

Explanation:

the ones are stronger and herder to break so it will take more energy to break them then when they are made

The statement, that describes the reaction and correctly compares the energy in bonds from the given ΔH values is "It's endothermic because the energy required to break bonds in the reactants is less than the energy released when the products are formed."

The quantity of energy evolved during a chemical reaction is represented by ΔH, also known as enthalpy change.

An exothermic reaction is a chemical reaction in which heat energy is emitted. The value of ΔH is always negative in exothermic processes. An endothermic reaction is a chemical reaction that absorbs heat energy. The value ΔH of is always positive for endothermic reactions.

When the bonds in the reactants are broken, more energy is absorbed than is released when new bonds are created in the products, therefore the value of ΔH is always positive in endothermic reactions.

Hence the correct option is endothermic because the energy required to break bonds in the reactants is less than the energy released when the products are formed.

Learn more about ΔH here

https://brainly.com/question/16420084

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Answer:

the number of protons determines the atomic number

Explanation:

Ex. Aluminum has 13 protons, so it's atomic number is 13

hope this helps :)

Answer:

melting point and conductivity

Explanation:

as long as both samples are copper, it will melt at the same time, aswell as conduct electricity the same.

Answer:

A)  positive; added

Explanation:

Based on the reaction:

2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g)

2 moles of NaHCO3 requires 129kJ to produce 1 mole of Na2CO3, 1 mole of H2 and 1 mole of CO2.

That means, the energy must be added being, thus, an exothermic reaction. The exothermic reactions have ΔH >0.

Thus, right answer is:

A)  positive; added

2. Coal

It is non renewable energy source.

Answer: the answer would be coal

Explanation: hoped this helped!

Answer:

8moles

Explanation:

1 mole of N2 gives 2 moles of NH3

4 moles of N2 gives>( 4*2)/1

= 8moles of NH3

Answer:

iron

Explanation:

iron reacts with oxygen easily causing rust to form. the haemoglobin in your red blood cells contains haem which is iron and that's how your body transfers oxygen all over

Answer:

D. 108 grams of KNO3(Potassium nitrate)

Answer:

sodium=atomic number 11 it electronic configuration is ,K=2, L=8,M=1 Valence is 1

oxygen= atomic number 8 it electronic configuration is K=2, L=6 Valence is 2

iron= atomic number 26 it electronic configuration is K= 2 L= 8,M=8 N=6 Valence 2

Answer: A=1

B=6

C=8

Explanation:

Answer:

Sorry I’m not rlly sure but maybe the 2nd or the last

Explanation:

Answer:

Taking the animal kingdom as an example, we can see that it is split into two clear groups: Invertebrates - animals without a backbone. Vertebrates - animals with a backbone.

Explanation:

Answer:

Which of the following best explains the relationship between peak-to-peak amplitude and semi-amplitude? Semi-amplitude is half the distance of the peak-to-peak amplitude. Semi-amplitude is the same distance as the peak-to-peak amplitude.