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Ulleksa [173]
3 years ago
10

An element is a _____ substance represents by a ______ symbol. Chemical symbols have ___ or ___ letters. The first letter of a c

hemical symbol is always a ______ letter and the second letter is always a ______ letter.
Chemistry
1 answer:
Inessa05 [86]3 years ago
6 0

Answer:

Explanation:

An element is a _distinct____ substance represented by a __chemical____ symbol. Chemical symbols have _one__ or _two__ letters. The first letter of a chemical symbol is always a _Capital_____ letter and the second letter is always a _small_____ letter.

Elements are distint substances that cannot be split up into simpler substances. Such substances are made up of one kind of atom. Each of them is usually symbolised by a capital letter or a capital letter followed by a small letter derieved from the English or latin or greek name of the element.

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An ionic bond is a bond between ____.
exis [7]

An ionic bond is a bond which occurs when there is a difference in the electronegativity of the atoms. One atom which has a stronger electronegativity tends to steal the electron of the other less electronegative atom hence making it more negative (anion), while the other becomes a cation. So answer is:

<span>b. a cation and an anion</span>

4 0
3 years ago
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Neutrons are found in the nucleus and separate the other particles so that the strong force can hold the nucleus together. Which
Levart [38]

Answer:

Protons

Explanation:

Protons are positively charged and needs to be separated so they don’t repel

5 0
3 years ago
The nucleus of the cell
Stells [14]

Answer:

c

Explanation:

it is c because that is the andwer

3 0
3 years ago
Two voltaic cells are to be joined so that one will run the other as an electrolytic cell. In the first cell, one half-cell has
vladimir1956 [14]

Au/Cr cell will run as a voltaic cell and Co/Zn cell will run as an electrolytic cell.

<h3>What is an electrolytic cell?</h3>

An electrolytic cell that uses electrical energy to enable a non-spontaneous redox reaction is known as an electrolytic cell.

Certain chemicals can be electrolyzed using electrolytic cells, which are electrochemical cells.

For example, water can be electrolyzed to create gaseous oxygen and gaseous hydrogen with the use of an electrolytic cell.

The following are the three essential parts of electrolytic cells:

Cathode (which is negatively charged for electrolytic cells)

Anode (which is positively charged for electrolytic cells)

Electrolyte

The reactions for each half cell is given by

Au^{3+}(aq) + 3e^- \rightleftharpoons Au(s) ; E° = 1.50 V

Cr^{3+}(aq) + 3e^- \rightleftharpoons Cr(s) ; E° = –0.74 V

Co^{2+}(aq) + 2e^- \rightleftharpoons Co(s) ; E° = –0.28 V

Zn^{2+}(aq) + 2e^- \rightleftharpoons Zn(s) ; E° = –0.76 V

When the Au/Cr cell will run as a voltaic cell and Co/Zn cell will run as an electrolytic cell, the a difference in the voltages is produced

E^o_{series} = E^o_{Au/Cr} - E^o_{Co/Zn}  = 2.24 V – 0.48 V = 1.76 V

Learn more about electrolytic cell:

brainly.com/question/19854746

#SPJ4

7 0
1 year ago
In terms of drug development, rank the following microbes from most difficult (1) to least difficult (3):
iVinArrow [24]

Answer:

See below ↓↓↓

Explanation:

Helminths = 1 Most Difficult

Fungi = 2 Moderately Difficult [Option not given, but 2 is right answer]

Bacteria = 3 Least Difficult

6 0
2 years ago
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