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3 years ago

Beta decay can be described by the emission of an _______

Chemistry

2 answers:

olchik [2.2K]3 years ago

8 0

That would be the emission of an electron.

mojhsa [17]3 years ago

7 0

Beta decay can be described by the emission of an electron.

Beta decay happens when an atom has too many protons or too many neutrons in its core. This causes the atom to be unstable and release an electron in the process.

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Andrej [43]

Answer:

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2 years ago

A chemistry student needs 50.0 g of methyl acetate for an experiment. By consulting the CRC Handbook of Chemistry and Physics, t

slamgirl [31]

Explanation:

As density is defined as the mass of a substance divided by its volume.

Mathematically, Density = $\frac{mass}{volume}$

It is given that mass is 50 g and density is 0.934 $g/cm^{3}$ .

Hence, calculate the volume of methyl acetate as follows.

Density = $\frac{mass}{volume}$

0.934 $g/cm^{3}$ = $\frac{50 g}{volume}$

Volume = $53.53 cm^{3}$

or, = $53.53 ml$ (as 1 $cm^{3}$ = 1 mL)

Thus, we can conclude that the volume of methyl acetate the student should pour out is $53.53 ml$ .

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2 years ago

Determine the oxidation number of the element that is underlined within the compound. BaCrO4 (Cr is underlined)

Alex777 [14]

I think the answer is +6

7 0

2 years ago

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6. This part of Earth's atmosphere blocks the sun's harmful rays. (4 points)

Mrrafil [7]

Stratosphere:) hope this helped

7 0

2 years ago

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Three beakers contain clear, colorless liquids. One beaker contains pure water, another contains salt water, and another contain

gladu [14]

Pure water may be identified by its density: it will have the lowwest density of the three solutions, given that the solutes (salt and sugar) increase the density (this is the easiests and quickest way).

You can also measure the freezing points or boling points to identify the pure water because the solutes depress the freezing points and increase the boling points.

To differentiate sugar water and salt water, you can probe which one conducts electricity, because salt water is a conductor (given that it ionizes into Na+ and Cl-) but sugar water is not a conductor.

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3 years ago

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