A conclusion В. experiment 11. Which of the following indicates the set of properties of A Made up of big particles of atom. B. Joined through chemical process 12. It is a branch of science which study the composition pro A. Chemistry B. Biology c Phi 13. The simplest form of matter that has constant chemical one type of atom. A Element B. Mixture hypothesis ement? Toined through mechanical process. Composed of one element with same properties es, structure of matter and the changes it undergoes. D. Earth science osition and characteristic properties and composed of Substance B. Base D. Compound 14. Elements usually exist in the environment together with other elements. Combination of elements are known as A Acid 15. Which of the following is NOT a compound? C. Element D. Compound A. Hydrogen B. Ice C. Salt D. Water 16 There are 118 known elements. Some occur naturally in our environment and others are used in laboratories. The following are examples of elements EXCEPT ONE. A Carbon B. Magnesium C. Gold D. Carbon Dioxide 17 Water is an example of a compound. It has a chemical symbol of H.0. This compound is composed of A. Hydrogen and oxygen C. Nitrogen and oxygen B. Carbon and oxygen D. Sulfur and oxygen 18. Which of the following is NOT a group of elements? A metal B. nonmetal C. metalloid D. Gold 19. Which of the following substance is a compound? A. Brass B. Cadmium C. Geranium D. Helium 20. Which of the following describe elements correctly? A. simplest substance C. homogeneous in nature B. has two or more atoms D. group according to characteristics GOODLUCK AND GOD BLESS