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3 years ago

__________ refers to the total energy of a system.

2 answers:

8 0

The internal energy r<span>efers to the total energy of a system. The enrgies are kinetic energy and potential energy of the system that makes up the whole energies of the system.</span>

omeli [17]3 years ago

6 0

Enthalpy refers to the total energy of a system. Enthalpy is basically a thermodynamic unit of measurement that determines the total heat content of a system. This means that all energy is included in the measurement - the energy used to make the system, the energy of the system, and the energy it uses to keep the environment separate from the system.

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Polonium-218 undergoes beta decay, converting a neutron into a proton. Then the daughter isotope undergoes another beta decay, a

sergij07 [2.7K]

Answer: $^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$ is the correct equation for beta decay.

Explanation:

When a beta particle, that is, $^{0}_{-1}e$ is emitted in a radioactive decay then it is known as beta decay.

Therefore, beta decay of Polonium-218 is as follows.

$^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$

Therefore, we can conclude that $^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e$ is the correct equation for the given beta decay.

8 0

3 years ago

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

dimulka [17.4K]

From the calculations and by the use of Boyles law, the new pressure of the gas is 1.7 atm

The term gas law is used to demonstrate the relationship between the volume, pressure, number of moles and temperature of a gas.

Using the Boyles law;

P1 = 1 atm

P2 = ?

V1 = 6 L

V2 = 3.5 L

P1V1= P2V2

P2= P1V1/V2

P2= 1 atm * 6 L/3.5 L

= 1.7 atm

Learn more about Boyles law:brainly.com/question/1437490

#SPJ1

3 0

2 years ago

Why is studying atoms and their parts and particles helpful to people?

ddd [48]

The study of atomic structure helps us understand more about the way the universe is constructed, how our bodies are made, and the components of life, which we can apply to other sciences in the fields of: health and disease prevention, fuels, product industry etc... It basically helps us to understand how we can make new things and how to utilize the power of the universe.

3 0

3 years ago

Read 2 more answers

Identify the parts of the atom that are labeled in the diagram

baherus [9]

Answer:

A- Nucleus

B-Energy levels

Explanation:

An atom refers to the smallest particle of an element that can take part in a chemical reaction.
An atom is made up of two major parts namely; the nucleus and the energy shell or energy levels.
The nucleus of an atom contains the sub atomic particles, protons and neutrons while the energy shells contain the sub atomic particle electrons.
It is important to note that the protons in the nucleus are positively charged which makes the nucleus to be positively charged.
On the other hand, energy shells are negatively charged because of the negative charge of the electrons.

6 0

4 years ago

Read 2 more answers

Suppose that 273 of a substance displaces 26ml of water what is the substance

Llana [10]

273g/25 mL = 10.92 (that's the density)
What has a density of 10.92 grams/mL? I don't know but I bet it's in your notes or on the worksheet.

3 0

3 years ago