When reacted with AgNo3 a white precipitate forms that dissolves when HNO3 is added. What is an equality? Expresses the quantity of 2 different metric units? Mass the amount of matter that makes up an object Weight the force exerted on an object by gravity Describe the periodic table contains information about elements Where are the alkali metals located? Group 1A Where are the halogens located? Group 7A atomic mass Sum of mass x %abundance of each isotope/ 100 How can the presence of an ion in a solution be detected? Flame test What tests would you use to identify a solution of Ag3PO4? Ammonium test What tests would you use to identify a solution of FeCl3 Negative ions test A flame test of a colorless solution gives a bright yellow color. How do you determine the number of significant figures for an answer obtained by addition or subtraction? Final answer is written so that it has the same number of decimal places as the measurement with the fewest decimal places. How do you determine the number of significant figures for an answer obtained by multiplication or division? Final answer is written so that it has the same number of significant figures as the measurement with the fewest significant figures. If the first digit is 5 or greater all the following digits are dropped and the value of the last retained digit is increased by 1. 100 centimeters (cm) = _ meter(s) 1 meter 1000 millimeters (mm) = _ meters 1 meter 10 millimeters (mm) = 1 centimeter (cm) What are the rules for rounding off numbers? If the first digit to be dropped is less then 5, then all the following digits are dropped.
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