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topjm [15]
3 years ago
13

Calcium carbonate is the major component of marble .Sulphuric acid is one of the major component of acid rain .write a balanced

chemical equation to show the corrosion of marble statue by the acid rain..please help...
Chemistry
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

CaCO3 + H2SO4 ---> CaSO4 + H2O +CO2(gas)

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What term defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom
aalyn [17]

Answer:

Relative atomic mass and it is expressed in atomic mass unit (amu)

Explanation:

AMU:

Atomic mass unit is define as the 1/12 the mass of an atom of carbon-12.

C12 has six neutron and six protons in the nucleus.

This unit is used to express the masses of atoms. We know that masses of atoms are very small and we do not have any such type of balance that can measure very small quantity. So that is way we use this scale to measure small quantity. For example, according to this scale

relative atomic mass of hydrogen is 1.008 amu

relative atomic mass of oxygen is 15.999 amu

relative atomic mass of uranium is 238.0289 amu

relative atomic mass of chlorine is 35.453 amu

4 0
3 years ago
How does a multicellular organism develop?
crimeas [40]

Answer:

The cells differentiate.

Explanation:

Organism can be simply classified on the basis of the cellularity of the organism. Two main types of organism are unicellular organisms and the multi cellular organisms.

Multicellular organism contain different types of cells.  The different cells differentiate to perform a particular function. The division of labor property is well shown by the multi cellular organism. The cells of the multi cellular organism must show differentiation process.

Thus, the correct answer is option (d).

7 0
3 years ago
Which of these properties would be possessed by both acids and bases? note: we do not mean mixing both in the same solution. we
Firdavs [7]
Answer is: <span>3. they conduct electricity.
1) acids taste sour, bases taste bitter.
2) acid </span><span>would react with metals and produce hydrogen gas:
Ca(s) + 2HCl(aq) </span>→ CaCl₂(aq) + H₂(g).
3) Acids and bases give ions in water solutions, so <span>they conduct electricity.
</span>

An Arrhenius base is a substance that dissociates in water to form hydroxide ions (OH⁻<span>). 
In this example lithium hydroxide is an Arrhenius base:</span>

LiOH(aq) → Li⁺(aq) + OH⁻(aq).

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons (H⁺<span>). 
For example hydrochloric acid: HCl(aq) → H</span>⁺(aq) + Cl⁻(aq).

4) red litmus turn blue whe base is drop on it and blue litmus turn red when acid is drop on it.

5) bases have pH greater than 7, acids have pH less than 7.

5 0
3 years ago
Arrange the following substances in order of decreasing magnitude of lattice energy. Rank the compounds in order of decreasing m
True [87]

The lattice energy of the compounds is distributed in the following decreasing order of magnitude: MgO > CaO > NaF > KCl.

<h3>KCl or NaF, which has a higher lattice energy?</h3>

The lattice energy increases with increasing charge and decreasing ion size.(Refer to Coulomb's Law.)MgF2 > MgO.Following that, we can examine NaF and KCl (both of which have 1+ and 1-charges), as well as atomic radii.NaF will have a larger LE than KCl since Na is smaller then K and F was smaller than Cl.

<h3>MgO or CaO, which has a larger lattice energy?</h3>

MGO is more difficult than CaO, hence.This is because "Mg" (two-plus) ions are smaller than "Ca" (two-plus) ions in size.MgO has higher lattice energy as a result.

To know more about compounds visit:

brainly.com/question/14117795

#SPJ4

3 0
1 year ago
Which is a physical property of matter?
IrinaK [193]

Answer:

D

Explanation:

6 0
2 years ago
Read 2 more answers
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