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kvasek [131]
3 years ago
8

What are ionic bonds???​

Chemistry
2 answers:
Debora [2.8K]3 years ago
5 0

Answer: ionic bonds

Explanation:

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds

LenaWriter [7]3 years ago
4 0

Answer:

<em><u>Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds</u></em><em><u>.</u></em>

<em><u>W</u></em><em><u>i</u></em><em><u>t</u></em><em><u>h</u></em><em><u> </u></em><em><u>a</u></em><em><u>l</u></em><em><u>l</u></em><em><u> </u></em><em><u>m</u></em><em><u>y</u></em><em><u> </u></em><em><u>l</u></em><em><u>o</u></em><em><u>v</u></em><em><u>e</u></em><em><u>,</u></em>

<em><u>A</u></em><em><u>r</u></em><em><u>i</u></em><em><u>a</u></em><em><u>❤</u></em>

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lidiya [134]
Energy, mass, and the speed of light squared.
(E, M, and C^2 respectively).

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3 years ago
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The half-life of radioactive substance is 2.5 minutes. what fraction of the origional radioactive remains after 10 mins
saul85 [17]
The answer is 1/16.

Half-life is the time required for the amount of a sample to half its value.
To calculate this, we will use the following formulas:
1. (1/2)^{n} = x,
where:
<span>n - a number of half-lives
</span>x - a remained fraction of a sample

2. t_{1/2} = \frac{t}{n}
where:
<span>t_{1/2} - half-life
</span>t - <span>total time elapsed
</span><span>n - a number of half-lives
</span>
So, we know:
t = 10 min
<span>t_{1/2} = 2.5 min

We need:
n = ?
x = ?
</span>
We could first use the second equation to calculate n:
<span>If:
t_{1/2} = \frac{t}{n},
</span>Then: 
n = \frac{t}{ t_{1/2} }
⇒ n = \frac{10 min}{2.5 min}
⇒ n=4<span>
</span>
Now we can use the first equation to calculate the remained fraction of the sample.
<span>(1/2)^{n} = x
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3 0
3 years ago
3. Which of the following is not true for atoms? (4 points) They combine to form elements and molecules. They contain negatively
Taya2010 [7]
<h3><u>Answer;</u></h3>

They are made up of elements.

<h3><u>Explanation;</u></h3>
  • An atom is the smallest particle of matter that still retains the property of the element.
  • Two or more atoms combine to form elements or compounds. Elements are formed by two or more similar atoms, while compounds are formed by two or more different elements.
  • Atoms are made up of subatomic particles; protons, electrons and neutrons. Electrons are negatively charged, protons are positively charged while neutrons have no charge.
7 0
3 years ago
The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay of the carbon- in a tiny samp
EleoNora [17]

The question is incomplete. The complete question is:

The half-life for the decay of carbon-14 is 5.73x10^3 years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of woodfrom an archeological dig is measured to be 2.8x10^3 Bq. The activity in a similiar-sized sample of fresh wood is measured to be 3.0x10^3 Bq. Calculate the age of the artifact. Round your answer to 2 significant digits.

Answer:

570 years

Explanation:

The activity of the fresh sample is taken as the initial activity of the wood sample while the activity measured at a time t is the present activity of the wood artifact. The time taken for the wood to attain its current activity can be calculated from the formula shown in the image attached. The activity at a time t must always be less than the activity of a fresh wood sample. Detailed solution is found in the image attached.

6 0
3 years ago
What process is used to refine aluminum from its ore bauxite?
Murljashka [212]

Answer:

D. Smelting

Explanation:

Bauxite is the aluminum ore from which alumina, also known as aluminum oxide, Al₂O₃, is produced. Bauxite is extracted from the topsoil regions of some subtropical and tropical regions, and the Bayer process is primarily then used to produce alumina from the bauxite.

Aluminum is produced from the alumina by an aluminum smelting process known as the Hall—Heroult electrolytic process which involves the use of a carbon anode and direct current to produce aluminum by reducing the aluminum oxide

7 0
3 years ago
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