Calculate the mass of O2 produced after 20.0 grams of KClO3 have reacted?

Arrhenius acid increases the concentration of hydrogen ion in an aqueous solution and Arrhenius base increases the concentration of hydroxide ion in an aqueous solution.

Arrhenius acid dissociates in aqueous solution to form hydrogen ion. In aqueous solution Arrhenius acid increases the concentration of hydrogen ions.  

Arrhenius base dissociates in aqueous solution to form hydroxide ion. In aqueous solution Arrhenius base increases the concentration of hydroxide ions.

In aqueous solution of hydroxide ions bases dissociates. Greater the concentration of base means greater the concentration of hydroxide ion. If hydroxide ion concentration is more then pH will be less.

Thus, we can say that Arrhenius acid increases the concentration of hydrogen ion in an aqueous solution and Arrhenius base increases the concentration of hydroxide ion in an aqueous solution.

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Answer:

[tex]P_2=7.09atm[/tex]

Explanation:

Hello!

In this case, given the change in volume and pressure of the gas, it is possible for us to recall the Boyle's law as way to understand the inversely proportional relationship between pressure and volume:

[tex]P_1V_1=P_2V_2[/tex]

Thus, when solving for the final pressure, P2, given the initial pressure and volume and the final volume, we obtain:

[tex]P_2=\frac{P_1V_1}{V_2}\\\\P_2=\frac{2.27atm*2.50L}{0.80L}\\\\P_2=7.09atm[/tex]

Best regards!

Answer:

7.1 atm

Using Boyle’s law, P1 V1=P2 V2.

D. A town has started a new recycling and composting program

Answer:

D  A town has started a new recycling and composting program

Explanation:

Answer:

this makes no sense you arent gonna get help

Explanation:

Answer:

Amplitude

Explanation:

Im taking this test rn lol

Answer:

just lose it then lol

Explanation:

Answer:

Final pressure = 1848.36 Torr

Explanation:

Given that,

Initial volume, V₁ = 5.2 L

Initial pressure, P₁ = 782 Torr

Initial volume, V₂ = 2.2 L

We need to find the final pressure. We know that the relationship between pressure and volume is given by :

[tex]P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{782\times 5.2}{2.2}\\\\P_2=1848.36\ torr[/tex]

So, the final pressure is equal to 1848.36 Torr.

Answer:

C

Explanation:

Usa test prep.

Answer:

Number 4

Explanation:

There are more in the line

Answer: The chemical formula for barium chloride shows the number of ATOMS of each element in the SMALLEST representative unit of the substance.

Explanation:

The chemical formula of compound are ways in which a chemical substance is being expressed using chemical symbols to show types of atoms and subscripts to indicate the number of atoms of each element. It shows the number of atoms in a single ( smallest) representative unit of the substance. Using the compound BaCl2;

"Ba" represents the abbreviation for the element "Barium" while "Cl2" represents the abbreviation for the element "chloride" with the subscript of two indicating the number of atoms of chlorine.

There are steps to be considered while writing a chemical compound of a substance, they include:

--> write the symbol of all the elements that forms the compound ( Ba and Cl).

--> write the valency of each element. (Ba has 2 valence electrons while Cl has 1 valence electron).

--> exchange the valency of the both elements such that Ba bears valency of 1 and Cl bears valency of 2 electrons.

--> finally, write the valency of second atom as subscript of first and Write valency of first atom as subscript of second. You will achieve BaCl2 as your chemical formula.

The chemical formula for barium chloride shows the number of atoms in the smallest representative unit of the substance.

Barium chloride is an ionic compound. The formula unit of an ionic compound is commonly represented by its empirical formula. The empirical formula of barium chloride is BaCl2.

This formula of BaCl2 shows the number of atoms in the smallest representative unit of the substance.

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Explanation:

The particles in solids are tightly packed, whereas the particles in liquid move around each other. The particles in gas move around quickly in all directions. Solids can only vibrate, but liquids and gas have some space for movement,

Answer:

2.5

Explanation:

The given costs for the purchase and delivery of the cupcakes are;

The cost of 10 cupcakes and the delivery fee = $30

The cost of 25 cupcakes and the delivery fee = $67.50

Let 'c' represent the fixed cost of delivery of the cup cakes, and let 'x' represent the cost of each cup cake, we have;

30 = 10·x + c...(1)

67.50 = 25·x + c...(2)

Subtracting equation (1) from equation (2) gives;

67.50 - 30 = 37.50 = 25·x - 10·x + c - c = 15·x

∴ x = 37.50/15 = 2.5

The cost of each cupcake, x = 2.5

(∴ The delivery fee = 30 - 10 × 2.5 = 5)

The cost of each cupcake is 2.5.

Answer:

41.09% B N. The formula in EDTA

Explanation:

Answer:

V = 50.77 L

Explanation:

Given that,

No. of moles, n = 2

Pressure, P = 0.947 atm

Temperature, T = 20°C = 293 K

We need to find the volume occupies by Nitrogen gas. Using gas law,

[tex]PV=nRT\\\\V=\dfrac{nRT}{P}[/tex]

Where

R is gas constant

Put all the values,

[tex]V=\dfrac{2\times 0.08205\times 293}{0.947}\\\\V=50.77\ L[/tex]

So, the volume occupied by the gas is equal to 50.77 L.

Answer:

A dispose of excese as directed

Answer:

1) It gets slower the farther out they are.

2) The farther out you are from the sun the less gravitational pull you have, which makes it go slower as it orbits.

3) Gravity ;) :)

Explanation:

Hope this helps! Plz mark as brainliest! :)

1.) The four inner planets have slower orbits and the four outer planets have faster orbits.

2.) The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves.

3.) Gravity

Answer:

oK so pay pattention to the fractions

Explanation:

Answer:

Left position

If this don't help i am sorry but i tried

Explanation:

The figure is representing the motion of revolution of the Earth around the Sun.

This motion lasts approximately 365 days (one year). Since the axis of rotation of the Earth is tilted (by about 23 degrees from the vertical), the amount of light received by different parts of the Earth at the different part of the year is different.

In fact, we observe 4 "extreme" cases:

- Situation at the bottom: here the situation is symmetrical in the two hemispheres, which receive an equal amount of light. So, we have 12 hours of daylight and 12 hours of dark at every point on Earth - this is called equinox, and it occurs in September

- Situation on the right: here we see that the Southern Hemisphere receive much more light than the Northern Hemisphere - so the Southern Hemisphere has more hours of sunlight per day. This is called winter solstice, and it occurs in December - in this case, it is summer in the Southern Hemisphere and winter in the Northern Hemisphere

- Situation at the top: here the situation is symmetrical in the two hemispheres, which receive an equal amount of light. So, we have 12 hours of daylight and 12 hours of dark at every point on Earth - this is called equinox, and it occurs in March

- Situation on the left: here we see that the Northern Hemisphere receive much more light than the Southern Hemisphere - so the Northern Hemisphere has more hours of sunlight per day. This is called summer solstice, and it occurs in June - in this case, it is summer in the Northern Hemisphere and winter in the Southern Hemisphere

Answer:

15 electrones: 1S²2S²2P⁶3S²3P³. Fósforo

27 electrones: 1S²2S²2P⁶3S²3P⁶4S²3d⁷ - Cobalto.

56 electrones: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s² - Bario

49 electrones: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p¹ - Indio

Explanation:

Para llenar los orbitales electrónicos de los distintos átomos debemos hacer uso de la regla de llenado electrónico de Aufbau. Por ejemplo, para el átomo con 15 electrones, la configuración electrónica es:

1S²2S²2P⁶3S²3P³. 2+2+6+2+3 = 15 electrones

Si elemento es neutro, tiene 15 protones. Es decir, es el fósforo, P.

27 electrones:

1S²2S²2P⁶3S²3P⁶4S²3d⁷ - Cobalto.

56 electrones:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s² - Bario

49 electrones:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p¹ - Indio

Answer:

False

Explanation:

chemically stable compounds are stable so they do not break down quickly.

Answer:

I think False

As

stable compounds are of lower energy and have a balanced charge. ... So, very loosely, a compound could be said to be stable when it is low in potential energy, has a neutral or spread out charge, and can be used in regular conditions.

THAT'S WHY THEY DO NOT BREAK DOWN EASILY

if wrong correct me pls

have a nice day

#Captainpower

Answer:

London Dispersion

Answer:

impermeable

Explanation:

Answer:

aquifer?

Explanation:

Answer:

61 degrees

Explanation:

Answer:

The answer is C

Explanation:

Answer:

2. Solute

3. Suspension

4. Colloid

5. Compound

Explanation:

Answer:

cis-2-pentene

Explanation : The stereoisomers are the compound which differs only in the spatial arrangement of the atoms across the stereogenic centers.

There are mainly two forms of stereoisomers cis and trans. Cis-isomers are those where the two bulky or functional groups are arranged on the same side across the stereogenic center; whereas, in trans-isomers the two bulky groups or functional groups are arranged in the opposite sides of stereogenic center.

Answer:

It has to do with increasing the entropy of the universe.

Explanation:

The modern definition of entropy is that it is the extent to which a system is able to disperse its energy. Energy (such as heat!) likes to spread itself out, so that as many states as possible are occupied with the least amount of energy.