Explain why some fibres are called synthetic

How many values of ml are possible for an electron with orbital quantum number l = 2?

A student has two substances at a lab table. One substance is iron pyrite (fool's gold) and the other is real gold. After placing a 20.0-gram sample of iron pyrite into 40.0 mL of water in a graduated cylinder, it displaces 4.0 mL of water.

When you balance a chemical equation, what are you doing? A. applying the law of conservation of energy B. applying Mendeleev's law C. applying the law of conservation of matter D. applying the periodic law

Why is the bond angle in a water molecule less than the bond angle of methane

Petroleum and coal can be mined from the continental shelf. t/f

In the equation Mg (s) + O2 (g) → MgO (s) what is the reactant?

What ancient languages were used to develop the names of some elements?

What determines the color of the egg shell?

What is the purpose of adding alum in the water treatment process?

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