potassium chloride + silver nitrate silver chloride (s) + potassium nitrate. Multiply LHS by 2 to balance oxygen reaction becomes, 2 H g O H g + O 2 Now, we see that H g 1 on RHS and H g 2 on LHS. Part I: Identify the type of reaction and write a balanced chemical equation for each of the following reactions. Unofficial and external sites are not endorsed by Southeastern Louisiana University. H g O H g + O 2 We see that O 2 on RHS and O 1 on LHS. Parkinson |Ĭopyright © 2007 Southeastern Louisiana University | Chemical Reactions Lesson | Main Lessons Page | Email Dr. Khan Academy is a 501(c)(3) nonprofit organization. Our mission is to provide a free, world-class education to anyone, anywhere. Press the button below to score your test: We will learn about balancing a chemical equation, types of reactions, corrosion, and rancidity. Correct answers MUST be within ± 1 unit of the third significant figure or they are scored as wrong.īalance the following chemical reactions (the coefficients must be the lowest common multiples in balancing): 1 nabr h 3 po 4 na 3 po 4 hbr reaction type 2 ca oh 2 al 2 so 4 3 caso 4 al oh 3 reaction type 3 mg fe 2 o 3 fe. Double displacement b 2 nh 3 1 h 2so 4 1 nh 4 2so 4 type of reaction. A 2 nabr 1 ca oh 2 1 cabr2 2 naoh type of reaction. Answer all non-integer questions to at least 3 significant figures. Types of chemical reactions answers balance each of the following reactions and identify each type of reaction. Do NOT use commas or scientific notation when entering large numbers. If you are stumped, answers to numeric problems can be found by clicking on "Show Solution" to the right of the question.ĭo NOT type units into the answer boxes, type only the numeric values. If you wish, you may return to the test and attempt to improve your score. A new page will appear showing your correct and incorrect responses. When you have completed every question that you desire, click the " MARK TEST" button after the last exercise. Questions left blank are not counted against you. Answer the following to the best of your ability.