Set A 1. In a parallel universe, an Instagram is equal to 12 kilograms. How many Instagrams are there in 96,000 grams? 2. Janet Napoles was the alleged “queen” of the ₱10 billion pork barrel scam. Express this amount in scientific notation?
Set B 1. Arrange the following parts of the Investigative Project (Chapter 1) chronologically: ____ Significance of the Study ____ Background of the Study ____ Scope and Limitations of the Study ____ Definition of Terms ____ Hypothesis of the Study ____ Statement of the Problem 2. Add: 1.0 + 2.0 + 3.0 + 4.0 + 5.0 + 6.0 + 7.0 + 8.0 + 9.0 + 10 with the correct number of significant figures.
Set C 1. If your investigative project is Effect of Bird's Eye chili ( capsicum frutescen) frutescen) on Common Black Cricket (Gryllus assimilis), assimilis), what is the independent variable? 2. How many significant figures does have?
̅0,000,000,000,000,000 523,690,492,294,684,281,0
Set D 1. An unknown, clear liquid is given to you in a beaker. You transfer the liquid from the beaker to a clean, empty test-tube, and begin to heat it. After a while, you see vapors (which on further analysis you discover are vapors of water) rising from the test-tube, and pretty soon, all that's left are a few crystals of salt stuck to the edges. Was that liquid an element, compound or a mixture? 2. What is the surname of the father of Modern Chemistry?
Set E 1. Salt is a mixture of a __________ and a __________. 2. The figure on the right shows two different liquids placed in one laboratory apparatus. What do you call this apparatus?
Set F 1. Identify the part of the wire gauze pointed p ointed by the arrow. 2. A substance is analyzed in a laboratory, and when viewed under an electron microscope, it is revealed that it contains only one kind of atom. Is the substance an element, compound or mixture?
Set G 1. H2CO3 is commonly used in the making of soft drinks, inexpensive and artificially carbonated sparkling wines, and other bubbly drinks. Give the common name of this compound. 2. Dry ice, also known as solid carbon dioxide, is changed to a gaseous state in room temperature. Identify the phase transition in this situation.
Set H 1. Jewel is asking for the kind and amount of food she needs to take everyday. What branch of chemistry is being applied in the situation below? 2.
A dish is given to you, which contains a blackish-yellow powder. When you move a magnet over it, you are amazed to see black particles, (which you find out are iron) fly upwards and get stuck to the magnet, and all that's left in the dish is a yellow powder, which you discover to be sulfur. Was your original powder an element, compound or mixture?
Set I 1. Why is eating and drinking not permitted in the laboratory? A. There wouldn’t be enough time to finish the experiment. B. Eating and drinking can distract other students. C. You could be poisoned since food will be infected. D. The lab would become quite messy if you do such. 2. What is the independent variable in the IP entitled “Determining the Effectiveness of Cinnamon O il as a Natural Insect Repellent ”?
Set J 1. Four students were asked to find the density of gold, and they got the following answers: 29.3 g/mL; 29.4 g/mL; 29.2 g/mL; 29.2 g/mL. Describe the values that they got in terms of accuracy and precision. 2. You have just won a block of pure 24-carat gold. Congratulations! Have you just procured an element, compound or mixture?
Set K 1. When an unknown substance is weighed using a triple beam balance, the following reading is obtained (in grams). What is the mass of the substance, in grams? 2. Boron is one element in the Periodic Table. It can be found along the stairstep line that distinguishes metals from non-metals. Therefore, Boron is a _______.
Set L 1. Which statement describes a chemical property? A. Its crystals are metallic grey. B. It dissolves in alcohol. C. It forms a violet-colored gas. D. It responds with oxygen to form a gas. 2. A rectangle measures 52.6 cm by 1.214 cm. What is the area of the rectangle, expressed to the correct number of significant figures? You are allowed to use a calculator.
Set M 1. What is the sum of 6.6412 g + 12.85 g + 0.046 g + 3.48 g expressed to the correct number of decimal places? You are allowed to use a calculator. 2. Three examples of physical change are: A. freezing of water, evaporation of gasoline, rusting of a nail B. boiling of water, bursting of a balloon, melting of an ice cube C. sawing a log, crushing a can, toasting a marshmallow
Set N 1. To determine the density of an irregularly shaped object, a student immersed the object in 21.2 milliliters of H2O in a graduated cylinder, causing the level of the H 2O to rise to 27.8 milliliters. If the object had a mass of 22.4 grams, what was the density of the object? You are allowed to use a calculator. 2. Stuart measures 25 grams of water and pours it into a container and seals it with a lid. He then freezes it. A day later he takes the container out of the freezer and notices the ice is larger than before. When he takes the ice out of the container, what would he expect it to weigh? You are allowed to use a calculator.
Set O 1. True or False a) Energy, such as sunlight or heat, is a form of matter. b) The mass of a person can change, but the weight stays the same. c) Odor or smell is a physical property of matter. 2. Scientists test a hypothesis by: A. formulating questions B. designing models
C. doing experiments D. all of the above
Set P 1. What are the three types of mixtures and give an example for each type. 2. Solve the following to the correct number of s ignificant figures: You are allowed to use a calculator.
Congratulations! You automatically get 2 points without answering any question. XD :))))) LOL
Congratulations! You automatically get 2 points without answering any question. XD :))))) LOL
