SCIENCE AND HEALTH 6: Missing compound and formula

Name or supply the missing compound and formula.

31. NaNO2 - ________________ 36. Calcium chloride - _______________
32. CaCO3- ________________ 37. Sodium Chloride - _______________
33. NH3 - ________________ 38. Sucrose - _______________
34. SiO2 - ________________ 39. Baking soda - _______________
35. CH3 COOH - _____________ 40. Acetic acid - _______________

41-45 Modified true or false. Write T if the statement is true and F if it is not, then change the underlined word in the correct form.
41. In conduction heat travels from the sun in stream waves.
42. Heat is always produced when energy transformation occurs.
43. Additives are the materials used to prevent food spoilage.
44. Kinetic energy is considered as the energy in motion.
45.Elements are the simplest substances; they cannot be broken down into simpler substance.