The relative atomic mass (Ar) : 137 and the element : Ba
<h3>Further explanation
</h3>
The naming of chemical compounds is giving a special name to a compound that aims to facilitate the classification of compounds and facilitate the identification of a compound. The rules for naming chemical compounds have been determined by the IUPAC (International Union of Pure and Applied Chemistry)
This nomenclature includes the naming of ion compounds, covalent compounds, and polyatomic
The molar mass of a compound is given by the sum of the relative atomic mass of Ar
M AxBy = (x.Ar A + y. Ar B)
Group 2 metals have a +2 charge : M²⁺
So the compound of metal carbonate : MCO₃
Ar C = 12, O = 16
M MCO₃ = (1.Ar M + 1. Ar C+ 3. Ar O)
The element with relative atomic masses 137 is Ba
So the compound : BaCO₃
Answer:
a standard case of pneumonia.
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<u>Answer:</u> The thickness of metal sheet is 1.93 mm
<u>Explanation:</u>
The metals sheet is in the form of cuboid.
To calculate the width of the metal sheet for the given volume, we use the equation to calculate the volume of cuboid, which is:
where,
V = volume of metal sheet = 
l = length of metal sheet = 15.9 cm
b = width of metal sheet = 14.8 cm
h = height of metal sheet = ? cm
Putting values in above equation, we get:
Converting this thickness into millimeters, we use the conversion factor:
1 cm = 10 mm
So, 
Hence, the thickness of metal sheet is 1.93 mm
Answer:
31.Microbial
32.Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.
33.examples to show that plastics are non corrosive in nature: Iron nails get rusted when exposed to moisture and air but plastic do not react with water and air. Plastic does not react with strong chemicals. Hence,cleansing chemicals are stored in plastic bottles and not in metal containers.
34.rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulfur and nitrogen oxides, which combine with atmospheric water to form acids.
35.in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
38.a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.
Explanation:
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