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प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
पर्याय
24 g of magnesium and 6 g of carbon
12 g of carbon and 24 g of magnesium
20 g of magnesium and 10 g of carbon
12 g of magnesium and 6 g of carbon
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उत्तर
12g of magnesium and 6g of carbon
The student will have to weigh 12 g of Magnesium and 6 g of Carbon.
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संबंधित प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Explain the terms ‘chemical formula’.
Give the symbol of the following element:
Zinc
State the type of element for the following:
Phosphorus
State the type of element for the following:
Aluminium
Give the symbol of the following element:
Magnesium
Give the formula of the following acid:
Hydrochloric
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Hydroxide
______ of some elements are derived from Latin or Greek names of the elements.
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
