Answer:
Hydrogen
Explanation:
Hydrogen, most abundant in the universe, is the chemical element with atomic number 1, and an atomic mass of 1.00794 amu, the lightest of all known elements. It exists as a diatomic gas (H2).
Answer:
C. Combustion
Explanation:
Combustion- an organic compound containing carbon, hydrogen and sometimes oxygen reacts with oxygen gas to form carbon dioxide and water.
Answer:
Some of the properties of cobalt silicate include:
It occurs as a crystal with red- violet type colour.
The shape of the cobalt silicate crystal is orthorhombic.
The molecular weight of cobalt silicate is 209.95.
The melting temperature of Cobalt Silicate is 1618 degrees Celsius.
The density of Cobalt Silicate is 4.63 grams per centimetre cube.
Cobalt Silicate can serve as a semi-conductor.
The mass of is K2CrO7 in the 250 ml of solution is mathematically given as
x=1.25mg of K2CrO7.
Hence, 250 ml of the solution will contain 1.25mg of K2CrO7
<h3>The mass of is K2CrO7</h3>
Question Parameters:
The total of potassium dichromate are there in a 250 mL bottle filled with 5 ppm solution
Generally the mass of k2CrO7 is mathematically given as

x=1.25mg of K2CrO7
Therefore,
250 ml of the solution will contain 1.25mg of K2CrO7
For more information on chemical Reaction
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