Basic Math question and answers for November 26, 2023
- Q 2 The trees of the Amazon Rainforest are considered the lungs of the earth because they consume O A water oxygen O B oxygen carbon dioxide O C carbon dioxide...
- Q Esters are most likely to be encountered in what department in a large department store OA Shoe department O B Women s clothing department OC Men s clothing department OD...
- Q 12 Chromium III or Chromium VI are frequently used to apply chrome finish to sink fixtures such as faucets If 45 2 Amps flows through a solution of chromium III...
- Q 16 What s the concentration of hydronium ions if a water base solution has a temperature of 25 C Kw 1 0x10 14 with a concentration of hydroxide ions of...
- Q 20 Which of the following is an endothermic process OA Isolation of elemental iron from iron ore OB The corrosion layer that formed on the Statue of Liberty C Combustion...
- Q 9 To refine aluminum from its ore aluminum oxide is electrolyzed to form aluminum and oxygen At which electrode does oxygen form A Both the anode and the cathode OB...
- Q 10 What pH might you expect from a weak acid and a strong base of equal concentrations A 3 2 OB 13 5 OC 7 0 OD 10 4
- Q 6 The solubility of oxygen in water OA is responsible for thermoclines OB is greater in cool liquid water than in warm liquid water OC allows for a greater concentration...
- Q 3 During a titration 50 0 ml of 0 2M NaOH were required to neutralize 50 0ml of H PO4 What s the concentration of the H PO solution OA...
- Q 13 The use of water in a heat exchanger is taking advantage of water s A polar molecular nature OB solid state when frozen OC significant expansion during boiling OD...
- Q 8 The part of a voltaic cell that allows ions to move between half cells so that charge doesn t build up is the A voltmeter OB anode OC salt...
- Q 4 Antacids are OA strong bases OB weak bases C weak acids OD strong acids
- Q 2 If atoms from two different elements react to form a compound the element with a higher O A energy B electronegativity C atomic radius OD atomic number will have...
- Q Question 7 of 13 Calculate the average rate of change of the function f x 3x 6x on the interval a a h assuming h 0 Express numbers in exact...
- Q Question 8 of 13 Macmillan Learning Calculate the average rate of change of the function f x 4x on the interval a a h assuming h 0 Simplify your answer...
- Q K ces Exhibit 4 13 Work Breakdown Structure and Activities for the Cell Phone Design Project ACTIVITY IDENTIFICATION MAJOR SUBPROJECTS ACTIVITIES Product Specifications P Product design D Supplier specifications S...
- Q 20 How many moles of carbon tetrachloride CCL is represented by 543 2 g of carbon tetrachloride The atomic weight of carbon is 12 01 and the atomic weight of...
- Q 16 The United States National Weather Service reports pressure in mm of Hg What s the pressure of 725 mmHg in Pa millibars and Torr OA 96 657 Pa 966...
- Q 12 A flask containing 100 g of water is heated and the temperature of the water increases from 21 C to 90 C How much heat did the water absorb...
- Q 10 What property of gases confirms that the space between the particles of gas is significantly larger than when the same substance is in a liquid state O A Mobility...
- Q 3 What s the mass in grams of 0 442 moles of calcium bromide CaBr The atomic weight of Ca is 40 1 and the atomic weight of Br is...
- Q 7 What s the temperature in degrees Celsius of an 11 2 L sample of CO at 744 torr if it occupies 13 3 L at 55 C and 744...
- Q 19 Stoichiometry is the study of chemical reactions that OA lists OB multiplies OC divides OD counts the particles
- Q Select the best answer for the question 9 A gas in a 6 2 mL cylinder has a pressure of 1 4 atmospheres A piston is pushed in until the...
- Q 11 One day in the chemistry lab students put a few pieces of dry ice into a beaker Dry ice is solid frozen carbon dioxide They see vapor rising from...
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