6.0 L of gas in a piston at a pressure of 1.0 atm are compressed until the volume is 3.5 L. What is the new pressure inside the piston?

Answer:

Therefore, the oxidation state of sulphur atoms in Na2S2O3 is −2 and +6.

Answer: 0.160 M

Explanation:

The statement about the number of moles of acid and base being the same is true in the neutralisation reaction between the acid HCl and base NaOH.

A neutralisation reaction is the type of chemical reaction whereby an acid reacts with a base to form salt and water.

HCl + NaOH --------> NaCl + H2O

In the neutralisation reaction, between the acid HCl and base NaOH above, the balanced chemical equation showed that the initial number of moles of acid is equal to the final amount of the number of moles of known base which is NaOH.

Therefore, the statement about the number of moles of acid and base being the same is possible in the neutralisation reaction between the acid HCl and base NaOH.

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Answer:

The answer is option D.

Explanation:

Hope it helps!

Answer:

8000g

Explanation:

option   D  is the correct answer.

The products in the equation would be  [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].

From the equation of the reaction:

[tex]CH_3SH + 4O_2 --- > CO_2 + SO_2 +2H_2O[/tex]

The products are [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].

This is because, for every chemical equation, the reactants are always at the back of arrows while products are at the front of arrows. In other words, reactants are usually on the left-hand side while products are on the right-hand side.

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1:Red cabbage contains a water-soluble pigment called anthocyanin that changes color when it is mixed with an acid or a base.

2: Basic

Answer:

The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The arteries and veins carry blood throughout the body, delivering oxygen and nutrients to the body tissues and taking away tissue waste matter.

Explanation:

Predator - Lions (any animal that preys upon other animals)

Scavenger - Vultures (any animal that consumes decaying flesh)

Decomposer - Worms/ Fungi (any organism that breaks down dead organisms into smaller particles and creates new compounds such as nutrients for plants)

Answer:

400°C

Explanation:

22,000 cal / (0.11 cal/g°C x 500 g) = 400°C

Answer:

400 C degree change

Explanation:

22 000 cal = 500 g * (C) * .11 cal / g-C

C = 22 000 / (500*.11)   = 400 C  degree change

This question involves the concepts of time period and tangential speed.

The tangential speed of the object is "5.1 x 10⁴ m/s".

The following formula gives the time period of the object:

[tex]T=\frac{2\pi}{\omega}\\\\[/tex]

[tex]\omega = \frac{2\pi}{T}[/tex]

where,

Therefore,

[tex]\omega=\frac{2\pi}{2.2\ x\ 10^4\ s}\\\\\omega=2.86\ x\ 10^{-4}\ rad/s[/tex]

Now, the tangential speed can be given by the following formula:

[tex]v=r\omega[/tex]

where,

Therefore,

[tex]v=(1.8\ x\ 10^8\ m)(2.86\ x\ 10^{-4}\ rad/s)[/tex]

v = 5.1 x 10⁴ m/s

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Answer: 5.1 x 10⁴ m/s

Explanation:

edge 2023

Answer:

It's B

Explanation:

as I answered it in study island.

Answer:

The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons.

Explanation:

Answer:

Gases have no definite shape or volume. They are fluid, allowing particles/molecules to move freely.

The behavior of a gas is that the volume changes directly with temperature. With a constant volume, the pressure will be directly proportional to the amount of gas.

Explanation:

These are some of the properties I can think of

Answer:

An ideal gas has identical particles of zero volume, with no intermolecular forces between them. The atoms or molecules in an ideal gas move at the same speed. Almost all gases obey the gas laws within a limited range of pressures and temperatures.

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Answer:

Sand would most likely be a homogeneous mixture

42.6897 grams of carbon dioxide would be produced from the following reaction, if 175 kJ of energy is given off.

The mole (symbol mol) is the SI base unit of material quantity. The amount of substance in an object or sample is a measure of how many elementary entities of a certain substance are present.

Given chemical reaction is:

[tex]2CO + O_2[/tex]  → [tex]2 CO_2[/tex]

From the stoichiometry of the reaction, it is clear that 2 moles of carbon dioxide are produced.

Actual moles will be calculated by using the enthalpy and energy value as:

Actual moles of [tex]CO_2[/tex] = 275kJ × ([tex]\frac{2 mol}{566 kJ}[/tex]) = 0.97 moles.

Grams of carbon dioxide = moles  X molar mass of carbon dioxide.

Grams of carbon dioxide = 0.97  X 44.01 g/mol

Grams of carbon dioxide = 42.6897 g

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Answer: As one atomic dipole nears another atom it will affect the electron density distribution, so for example if the slightly positive end of the atom is located next to another atom, it will attract the electron(s) in the other atom. A covalent bond happens when atoms share an electron between them. The other kind of bond is called ionic, and it happens when one atom gives an electron to another atom. These bonds are held together with electric forces. Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different.

Answer:

there are relatively few atoms but they can make many molecules

Explanation:

Answer:

114 grams N₂

Explanation:

To find the answer, you need to (1) convert from moles CuO to moles N₂ (via the mole-to-mole ratio from equation) and then (2) convert from moles to grams (via molar mass from the periodic table). The final answer should have 3 sig figs according to the given value (12.2).

2 NH₃ + 3 CuO --> 3 Cu + 1 N₂ + 3 H₂O

Molar Mass (N₂): 2(14.01 g/mol)

Molar Mass (N₂): 28.02 g/mol

12.2 moles CuO           1 mole N₂              28.02 grams
-----------------------  x  -----------------------  x  -----------------------  = 114 grams N₂
                                  3 moles CuO              1 mole N₂

Answer:

c

Explanation:

c is correct i believe

Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.

The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.

The reaction for HCO₃ is given as:

HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O

The value of Ka for the given reaction will be:

Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]

Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.

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Terbium-147 undergoes positron emission to become a stable atom, the stable atom is ₆₄Gd¹⁴⁷.

Series (or family) of natural radioactive decay is the set of elements with unstable nuclei, which follow an orderly sequence of spontaneous decay, that is, they emit alpha and beta particles, until a stable lead nucleus is created.

In this case, natural radioactive decay occurs when the nucleus of the atom of some chemical element is unstable and then it "breaks", releasing electromagnetic radiation and disintegrating.

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Answer:

Metallic bonding is the type of chemical bonding that occurs between atoms of metals. In a metallic bond, atoms share their electrons in a way that allows them to form a “sea” of free electrons. This electron sea is responsible for the unique physical and electrical properties of metals.

Explanation:

Answer:

B. allow for bonding metals to be stable.

Explanation:

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Answer:

The moderators are just there to delete relevant questions or answers but they aren't deleting the spammers .

Explanation:

Stay safe, stay healthy and blessed.

Have a good day !

Thank you

Answer:

The number of protons is 30. Substitute the known values, where N represents the number of neutrons. Let's rewrite the equation as 30+N=65 30 + N = 65 .

Answer:

35 neutrons

Step by step explanation:

Atomic mass of Zinc: 65 amu (atomic mass units)

Number of protons in Zinc: 30

Number of neutrons in Zinc: Atomic mass of Zinc - Number of protons in Zinc = 65-30 = 35 neutrons.

Therefore, zinc atoms have 35 neutrons.

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Answer:

a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.

The equation will balance because the number of hydrogen atoms and atoms is in the reactants and in the products in this case is 2.

Reaction balancing is a method used in several areas of Chemistry to determine the amount of matter of each of the substances participating in the reaction, as well as to establish the existing proportions between the components.

So, since you must have the same amount of sodium and chlorine on each side of the reaction, then you have multiplay the NaCl for 2.

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Answer: B

Explanation: I know

Answer: …

Explanation: