Two liquids mix, neither absorbing nor releasing heat.

Answers

Answer 1
Answer: When two liquids mix without absorbing or releasing heat, it's referred to as an ideal mixing process. This means that the temperature of the mixture remains constant throughout the process, and there is no change in enthalpy (heat content) of the system. In thermodynamics, this type of mixing is often described as an isenthalpic process. It occurs when the mixing process is perfectly efficient and doesn't involve any heat exchange with the surroundings. This phenomenon can be observed in some real-world situations, but it's an idealized concept used in thermodynamic calculations.
Answer 2
Answer:

When two liquids mix without absorbing or releasing heat, it is an isothermal process where the temperature of the mixture remains constant. A common example is mixing water and ethanol.

When two liquids mix without absorbing or releasing heat, it means that the mixing process is isothermal. This is because the temperature of the mixture remains constant throughout the process.

One example of this is when you mix equal amounts of water and ethanol. Both liquids have similar intermolecular forces, so they mix easily. The temperature of the mixture remains the same as the initial temperature of the liquids.

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Match the following definition to the type of solution it describes. unsaturated solution
saturated solution
supersaturated solution

A.
The amount of solute dissolved is less that the maximum amount the solution can hold.
B.
The amount of solute dissolved is the maximum amount the solution can hold.
C.
The amount of solute dissolved is more than the usual maximum amount.

Answers

The following definition to the type of solution it describes are

unsaturated solution: A. The amount of solute dissolved is less that the maximum amount the solution can hold.
saturated solution: B. The amount of solute dissolved is the maximum amount the solution can hold.

supersaturated solution: C. The amount of solute dissolved is more than the usual maximum amount.

The nucleus of a radium-226 atom is unstable, which causes the nucleus to spontaneously(1) absorb electrons (3) decay
(2) absorb protons (4) oxidize

Answers

Answer: The nucleus of radium-226 is unstable and hence undergoes decay.

Explanation: Radium has many isotopes. One of them is _(88)^(226)\textrm{Ra} which has 88 protons and 138 neutrons. It is a radioactive isotope and undergoes decay process.

This isotope undergoes alpha - decay and produces Radon-222 isotope.

Equation for alpha - decay follows:

_(88)^(226)\textrm{Ra}\rightarrow _(86)^(222)\textrm{Rn}+_2^4\alpha

Hence, the nucleus of radium-226 undergoes decay process.

The answer is (3) decay. An atom whose nucleus is unstable is said to be "radioactive," and its nucleus undergoes nuclear decay.

Help with this
I don't understand this

Answers

Answer: Galaxy  D is what i got and it says ts is right

Explanation:

the red line on d is closer than the rest

Fter a radioactive atom decays, it is the same element that it was before with no measurable change in mass. Which kind of decay has occurred, and how do you know?

Answers

After a radioactive atom decays, it is the same element that it was before with no measurable change in mass. the decay that is present is gamma decay because gamma decay has photons which has no mass unlike alpha and beta decay.

Answer:

D

Explanation:

on edge 2020

How does a balanced chemical equation show that mass is never lost or gained in a chemical reaction

Answers

mass never changes in anything and after the solution you will notice answer has 1 same number

Final answer:

A balanced chemical equation shows that mass is not lost or gained in a chemical reaction by ensuring the number of atoms and overall charge on both the reactants and products side are equal, adhering to the law of conservation of mass.

Explanation:

A balanced chemical equation is one where the number of each type of atom in the reactants side is equivalent to the number of the same type of atoms in the products side. In chemical reactions, matter cannot be created or destroyed, a principle called the law of conservation of mass. This means that all the atoms present in the reactants will be accounted for in the products, ensuring that mass is never lost or gained during the reaction process.

For instance, if we take the simple chemical reaction of hydrogen and oxygen forming water (2H2 + O2 → 2H2O), you'll see that there are four hydrogen atoms and two oxygen atoms both before and after the reaction, thus demonstrating mass conservation. Additionally, in balanced chemical equations, not only should atoms be balanced, but also charges to ensure charge conservation which is necessary when dealing with ionic substances. The mass balance and charge balance are both instrumental in maintaining the law of conservation of mass in chemical reactions.

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a gas has a volume of 590 mL at a temperature of 590 mL at a temperature of -55.0 degrees Celsius. What volume will the gas occupy at 30.0 degrees Celsius?

Answers

Answer: The volume that gas occupy will be 820.04mL.

Explanation:

To calculate the volume of the gas at different temperature, we will use the equation given by Charles' Law.

This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T

or,

(V_1)/(T_1)=(V_2)/(T_2)

where,

V_1\text{ and }T_1 are the initial volume and initial temperature of the gas.

V_2\text{ and }T_2 are the final volume and final temperature of the gas.

We are given:

T(K)=273+T(^oC)

V_1=590mL\nT_1=-55^oC=218K\nV_2=?mL\nT_2=30^oC=303K

Putting values in above equation:

(590)/(218)=(V_2)/(303)\n\nV_2=820.04mL

Hence, the volume that gas occupy will be 820.04mL.