Which of the following produces a chemical change?

Why does the elements of group 17 appear as diatomic molecules?

Potassium Iodide + Lead Nitrate products

Inside an atom, which of these occupies the maximum volume? a) the electrons b) the protons c) the neutrons d) empty space (vacuum)

On increasing the concentration of reactants in reversible reaction, then eqillibrium constant will. a) Depend on the concentration. b) increase. c) unchanged d) decrease

In birds, having long feathers (L) is dominant to short feathers (l). A homozygous dominant bird and homozygous recessive bird mate.

Name the folowing ionic compound MgCl2

How can substitution mutation affect a person's traits?

Which two compounds are electrolytes A) KOH and CH3COOH B) KOH and C5H12 C) CH3OH and CH3COOH D) CH3OH and C5H12

Explain why it is harder to remove an inner shell electron than a valence electron from an atom?

Name the organic product of C4H10 + Cl2 - -> C4H9Cl + HCl