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3 years ago

Explain why the magnesium can be stretched to form magnesium ribbon...??

Chemistry

1 answer:

insens350 [35]3 years ago

3 0

Answer:

Because of its malleability.

Explanation:

Magnesium is alkaline earth metal.

It is present in second group.

It is shiny gray color metal.

It is lighter but strong.

Its density is 1.738 g/mL.

It is soft and can be malleable. Magnesium ribbons are also formed by stretching the magnesium metal and this is due to the malleability of magnesium.

Magnesium ribbon burns and produces heat.

It is used to make the many light weight products such as many parts of car, phone, laptop, luggage etc.

It is also used to remove the sulfur such as from iron and steel.

It is also used in fireworks.

It is also used in medicine such as for constipation.

It is used as antiacid for heart burn.

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Answer:

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2 years ago

The metallic radius of a lithium atom is 152 pm. What is the volume of a lithium atom in cubic meters?

Anuta_ua [19.1K]

Answer:

Volume of lithium atom is found to be 1.47 X 10⁻²⁹ m³

Explanation:

Let us consider the volume of atom as a sphere (but it is little complex than that). This volume is mathematically expressed as,

$V=\frac{4}{3}\pi R^{3}$ ----------------------------------------------------------------------------------------(Eq. 1)

Here, R is the radius of lithium atom. The radius is given in picometers, so firstly let us convert it into meters

$R=(152pm )(1X10^{-12}\frac{m}{pm})$

$R = 1.52 X 10^{-10}m$

placing this value in Eq.1 the required result is achieved

$V=\frac{4}{3}\pi {1.52X10^{-10}}^{3}$

V= 1.47 X 10⁻²⁹ m³

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2 years ago

Select the true statement concerning voltaic and electrolytic cells. Select one: a. Voltaic cells involve oxidation-reduction re

Volgvan

Answer:

Electrical current drives nonspontaneous reactions in electrolytic cells.

Explanation:

Electrochemical cells are cells that produce electrical energy from chemical energy.

There are two types of electrochemical cells; voltaic cells and electrolytic cells.

A voltaic cell is an electrochemical cell in which electrical energy is produced from spontaneous chemical process while an electrolytic cell is an electrochemical cell where electrical energy is produced from nonspontaneous chemical processes. Current is needed to drive these nonspontaneous chemical processes in an electrolytic cell.

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3 years ago

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Which element is placed in the same period as ruthenium but has a higher atomic number than it? bismuth osmium silver zirconium

Nat2105 [25]

The element that is placed in the same period as ruthenium but which has a higher atomic number than it is SILVER.

In the periodic table, a period refers to an horizontal row of elements. All the element in a particular period always have the same number of atomic orbitals. Ruthenium and silver are in the same period and they have the same number of atomic orbital but have different atomic numbers. The atomic number of silver [47] is higher than that of ruthenium [44] because silver has higher number of protons more than ruthenium. Remember that, the number of proton of an element determines its atomic number and the elements in the periodic table are arranged based on increased atomic number.

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2 years ago

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2 years ago