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andrey2020 [161]
3 years ago
14

The expulsion of an electron from an atomic nucleus is called _______ decay.

Chemistry
1 answer:
erik [133]3 years ago
8 0
The expulsion of an electron from an atomic nucleus is called β⁻<span> decay.

</span>β decay is a type of radiation and it consists of two parts as β⁻ decay and β⁺ decay.

β⁻  decay is a conversion of neutron into a proton by emission of an electron.
when an element undergoes a β⁻  decay, the daughter nucleus will have the same number of mass but the number of protons will be increased by 1 and number of neutron will be decreased by 1.

β⁺ decay is a conversion of proton into a neutron by emitting a positron. Then daughter nucleus will have same number of mass but proton number will be decreased by 1 and neutron number will be increased by 1.
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It splits into two equal nuclei of approx. equal mass.

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3 years ago
All of the following statements are correct except The conversion of compounds into elements is a chemical change. The conversio
aleksandrvk [35]

Answer:

The conversion of liquid water into gaseous water is a chemical change

Explanation:

A chemical change occurs when there is a chemical reaction, so there'll be changed in the compounds, such as forming new ones, forming its elements, or elements forming compounds.

A physical change occurs when there is a change in the state of aggregation of the compound, it means that it changes its physical state. Solid for liquid, liquid for solid, liquid for gas, gas for liquid, solid for gas, and gas for solid are the physical changes.

So the evaporation of water, or its conversion in gaseous water, is a physical change, not a chemical change.

6 0
4 years ago
Josh was blowing bubbles through a straw into a glass of tap water. As Josh exhaled into the straw, he blew carbon dioxide gas i
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the more concentrated the solution (gas/water solution).

Explanation:

the increase of the co2 value in water as a result of Josh exhaling into the straw so, the concentration of the gas/water solution will be higher.

6 0
3 years ago
environmental researchers have collected rain acidity data for several decades. they want to see if there is any evidence that a
podryga [215]

Environmental researchers have collected rain acidity data for several decades. They want to see if there is any evidence that attempts to reduce industrial pollution have produced a trend toward less acidic rainfall. They should display their data in a Time plot.

Acid Rain: What Is It?

Any type of precipitation that contains acidic elements, such as sulfuric or nitric acid, that falls to the ground from the atmosphere in wet or dry forms is referred to as acid rain, also known as acid deposition. Rain, snow, fog, hail, and even acidic dust might fall under this category.

Only one variable—the acidity level of the rainfall over a specific time period—will be present in the data used to create the plot or graph. But because the gbwre data is time-dependent, the plot is a time series. As a result, this is a two-dimensional univariate plot with time on the other axis and the acidity label Rainfall on the first. The time series plot is therefore the appropriate type of graph to use to illustrate this kind of data.

Questions:

Environmental researchers have collected rain acidity data for several decades. They want to see if there is any evidence that attempts to reduce industrial pollution have produced a trend toward less acidic rainfall. They should display their data in a(n)... a. Bar graph b. Time plot c. Histogram d. Box plot

To learn more about acid rain click on the link below:

brainly.com/question/17169843

#SPJ4

6 0
2 years ago
If the solubility of a gas in water is 1.22g/2.75 atm, what is it’s solubility (in g/L) at 1.0 atm
Slav-nsk [51]

Answer : The solubility of a gas in water at 1 atm pressure is, 0.4436 g/L

Solution : Given,

Solubility of a gas in water = 1.22 g/L     (at 2.75 atm pressure)

At pressure = 1 atm,     Solubility of a gas = ?

Now we have to calculate the solubility of a gas.

At 2.75 atm pressure, the solubility of a gas in water = 1.22 g/L

At 1 atm pressure, the solubility of a gas in water = \frac{1atm}{2.75atm}\times 1.22g/L=0.4436g/L

Therefore, the solubility of a gas in water at 1 atm pressure is, 0.4436 g/L


5 0
4 years ago
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