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Roman55 [17]
3 years ago
11

How many elements have to be present for a compound to form?

Chemistry
1 answer:
mariarad [96]3 years ago
5 0
Two or more different elements
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Calculate the number of moles in 7.41 X 1017 atoms Ag.
jolli1 [7]

Answer:

1.23x10^-6 mole

Explanation:

A clear understanding of Avogadro's hypothesis proved that 1mole of any substance contains 6.02x10^23 atoms. This indicates that 1mole of Ag contains 6.02x10^23 atoms.

Now, 1f 1mole of Ag contains 6.02x10^23 atoms, then Xmol of Ag will contain 7.41x10^17 atoms i.e

Xmol of Ag = 7.41x10^17/6.02x10^23 = 1.23x10^-6 mole

4 0
3 years ago
an ionic compound is typically made of a. two metals. b. two nonmetals. c. a metal and a nonmetal. d. none of the above.
kirill115 [55]
C. a metal and a nonmetal
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3 years ago
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Can somebody help please to balance those I couldn’t balance it
scZoUnD [109]

Answer:

1.

(NH4)2Cr2O7——>Cr2O7+N2+4H2O

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6CO2+6H2O——>C6H12O6+6O2

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SI

modern form of the metric system

Explanation:

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SVEN [57.7K]

Answer:

Answer is given below:

Explanation:

The way it is made (3) Structure.

The basic unit of life (7) Cell.

Perform the different functions of cell (7) Organelles.

No nucleus and unicellular (1) Prokaryote.

Composed of many cells (6) Tissue.

Concluded that all animals are made of cells (10) Theodore schwann .

Contains the genetic information (2) Nucleus.

Concluded that all plants are made up of cells (9) Matthias Schleilden.

Concluded that all cell came from pre existing cells (10) Rudolf Virchow.

Has a nucleus and some are unicellular, but mostly

multicellular (4) Eukaryote

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