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Daily Questions March 24 to March 28

Daily Questions March 24 to March 28. Extra Question _____ N 2 + 3 H 2 ------ 2 NH 3 What would the coefficient be in the first part of the formula? a. 1 b. 3 c. 2 d. 0. March 24.

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Daily Questions March 24 to March 28

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  1. Daily Questions March 24 to March 28 • Extra Question • _____N2 +3H2 ------2NH3 • What would the coefficient be in the first part of the formula? • a. 1 • b. 3 • c. 2 • d. 0

  2. March 24 42g of Na react with unknown amount of Cl to produce 100g of NaCl. How much Cl was used? Na + Cl ------NaCl 42g+ x 100g 50g of Cl 52g of Cl 56g of Cl 58g of Cl

  3. March 25 • During a science lab investigating chemical reactions, Mrs. Poe’s students placed an antacid tablet in a zip lock bag. The recorded mass of the tablet was 25 g and the bag was 60 g. After the tablet fizzled and disappeared, the bag filled with gas. If the total mass of the bag+tablet+water was 135 g before the reaction, what was the total of bag+liquid+gas after the reaction? • A. 60 g • B. 75 g • C. 135 g • D. 270 g

  4. March 26 • According to the LOCOM, how many grams of beryllium sulfide are produced in this reaction? • Be + S -----BeS • 24 + 68 ---- ? • A. 92g of BeS • B. 84g of BeS • C. 100g of BeS • D. 44g of BeS

  5. March 27 • Which is NOT an example of kinetic energy? • A. A rock sitting on the top of a large hill • B. A dog running after a car • C. A boy or girl chasing a kite • D. A car running a red light.

  6. March 28 • What are the two things that affect potential energy? • A. Mass and height • B. Height and volume • C. Mass and weight • D. Weight and gravity

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