Explain why all ores are minerals but all minerals are not ores.

Answers

Answer 1

Answer: An ore is a type of rock that contains many minerals. But a mineral is just a part of the ore. So all ores are minerals but all minerals are not ores.

Answer 2

Answer: Minerals:Metal bearing substance, found in earth's crust are called minerals
Ore:the Minerals which metals can be obtained on a commercial scale are called Ores
form this definitions we can understand that ores are minerals which is used to obtain metals so, only all ores are minerals but all minerals are not ores.

Related Questions

At which temperature and pressure would a sample of helium behave most like an ideal gas?
Acetone is a common solvent and has a density of 0.7899 g/mL. What volume of acetone, in mL, has a mass of 29.3 g?
The reason the vapor pressure increases with increasing temperature is due to the increased kinetic energies of the gas molecules.TRUE FALSE
Help please!!!! I only have a couple mins
Which layer of the suns atmosphere appears red during an eclipse

This is responsible for the relatively high boiling point of watera. hydrogen bonding
b. ionic bonding
c. metallic bonding
d. nonpolar covalent bonding
e. polar covalent

Answers

The bonding of hydrogen

Hydrogen bonding as it requires a lot of energy in the form of heat to break the bonds between the H and the O atoms

Give two reasons why a gold ring is not made of 100% gold.

Answers

Gold is extremely malleable in its purest form, so a 24-carat (pure) gold ring would be very easy to get dented and squashed during the time that it is being worn.
It is also extremely expensive to process gold to its purest form, so pure gold jewelry would be ridiculously expensive, to the point of no demand.
Hope that helped =)

1. Gold is soft like lead.

2. Pure gold isn't durable, and wouldn't last, nor would you be able to keep it on your finger since it's so soft. If you're gonna wear a ring for a life-time, it has to have durability.

The reaction of a Lewis acid with a Lewis base would most likely be accompanied by an increase in which item?covalent bonds

hydronium ions

electron pairs

hydroxide ions

Answers

The correct option is COVALENT BONDS.

A Lewis acid is defined as a substance which accept a pair of electron while a Lewis base refers to a substance that donate an unshared pair of electrons to another chemical specie with which it shared the donated pair of electrons.

Lewis acid and Lewis base react together to form salt and water. This type of reaction is called neutralization reaction. The neutralization reaction of Lewis acid and Lewis base involves electron pairs transfer, thus, there is an increase in the number of covalent bonds during this reaction.

Answer:

The correct answer is "covalent bonds".

Explanation:

A covalent coordinated or dative bond is formed when two atoms are linked together, sharing a pair of electrons. But only one of these atoms is the one that brings the pair of shared electrons. For this type of bond to occur, it is required that the donor atom has a pair of free electrons in an outer orbital and the acceptor atom has the capacity to receive that pair of electrons in its last valence layer.

On the other hand, a Lewis base is a substance that can share or donate a pair of electrons, because they have a pair of solitary electrons. A Lewis acid is that substance that accepts or takes a pair of electrons because they have their last electron layer incomplete.

It is then possible to say that an Lewis acid-base reaction is formed by the Lewis acid and base joined by a coordinated covalent bond.

So, the correct answer is "covalent bonds".

Which elements can react to produce a molecular compound?(1) calcium and chlorine
(2) hydrogen and sulfur
(3) lithium and fluorine
(4) magnesium and oxygen

Answers

The elements that can react to produce a molecular compound is hydrogen and sulfur

Explanation

A molecular compound is formed when two or more atoms join by sharing electrons through a covalent bond.

Sharing of atoms occurs mainly between non metals.

Hydrogen ( a non metal) and sulfur(a non metal) react to form a molecular compound by sharing electron among themselves.
2 hydrogen atom bond with 1 atom sulfur to form hydrogen sulfide.

$\boxed{\left( 3 \right){\text{ Hydrogen and sulfur}}}$ can react to produce a molecular compound.

Further Explanation:

Covalent or molecular bond is formed when two or more non-metals share electrons between them. Such electron pairs are called bonding or shared pairs. The compounds formed as a result of these bonds are called covalent or molecular compounds.

Covalent bonds can be a polar covalent or nonpolar covalent bond. The bonds formed as a result of electron sharing between the atoms having some electronegativity difference between them are polar covalent bonds. HCl shows such type of bonding in it. The bonds formed when electrons are shared between the bonded atoms and these have no or slight difference in their electronegativities are called nonpolar covalent bonds. The bonds present in a $\text{CH}_4$ molecule are nonpolar covalent bonds.

Another type of bonding that occurs due to the complete transfer of electrons from one atom to the other is called ionic bonding. Such a process includes the formation of charged species called ions. Ions can have positive or negative charges on them. The charged species having a positive charge are cations while those having negative charges are anions.

(1) Calcium and chlorine

Calcium belongs to group 2A of the periodic table and is highly electropositive in nature. So it loses two electrons and forms $\text{Ca}^(2+)$ . Chlorine is highly electronegative in nature so two chlorine atoms accept the electrons donated by calcium and forms $\text{Cl}^-$ ions. Therefore $\text{CaCl}_2$ is formed which is an ionic compound.

(2) Hydrogen and sulfur

Both these atoms are nonmetals. So they share electrons with each other and as a result, a covalent or molecular compound is formed.

(3) Lithium and fluorine

Lithium belongs to group 1A of the periodic table and is highly electropositive in nature. So it loses an electron to form $\text{Li}^+$ . Fluorine is highly electronegative in nature and therefore it accepts the electrons donated by lithium and forms $\text{F}^-$ . Therefore LiF is formed which is an ionic compound.

(4) Magnesium and oxygen

Magnesium belongs to group 2A of the periodic table and is highly electropositive in nature. So it loses two electrons and forms ${\text{M}}{{\text{g}}^(2 + )}$ . Oxygen is highly electronegative in nature so it accepts the electrons donated by magnesium and forms ${{\text{O}}^(2 - )}$ . This results in the formation of MgO which is an ionic compound.

Therefore a molecular compound is formed when hydrogen and sulfur react with each other.

Learn more:

What is a typical characteristic of an ionic compound? brainly.com/question/6071838
What type of bond exists between phosphorus and chlorine? brainly.com/question/81715

Answer details:

Grade: High School

Chapter: Ionic and covalent compounds

Subject: Chemistry

Keywords: covalent bond, molecular bond, cations, anions, calcium, chlorine, hydrogen, sulfur, lithium, fluorine, magnesium, oxygen, molecular compound, ionic compound.

the radioisotope radon-222 has a half-life of 3.8 days. How much of a 73.9-gram sample of radon-222 would be left after approximately 23 days?

Answers

There will be 1.11 grams of the sample of radon-222 left. This answer can be obtained using the formula of half life to get the rate constant which will be used in another equation later on.

Half-life (t) = ln2/k = 3.8 days

k = 0.182407/day

Using the general equation of a first order reaction:

Ca/Cao = 1/e^(kt)
Ca/Cao = 0.01506 --> fraction of radon-222 left

This means that 1.51% of the original amount remains, so 1.51% of 73.9 is 1.11 grams.

I need help! In an equilibrium reaction with a Keq of 1 × 108 A. products are favored. B. the reaction is nonspontaneous. C. the reaction is endothermic. D. reactants are favored.