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VOCABULARY MAIN IDEA: Life depends on hydrogen bonds in water. Objects with known masses are placed on the other side of the arm until the balance arm is level. Water consists of the elements hydrogen and oxygen combined in a 2 to 1 ratio. ACIDS, BASES, & THE pH SCALE Name: Answer Key Date: Pd: PART 1: ACIDS AND BASES. Know the types of bonds, how they form and their relative strengths. Study Jams Properties Of Matter Worksheet By Crazy4teaching Tpt Water compound carbon dioxide compound hydrogen element sodium element matching. Classify the following as an element, a compound, a solution, or a heterogeneous mixture:. While the barometer is used to measure atmospheric pressure, a device called a mercury manometer is used to measure the pressure of samples of gas in the laboratory. Mohammed alnawfal, ayub ali vapor pressure the vapor pressure of a liquid is the equilibrium pressure of a vapor above. 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