What is Kb for the conjugate base of CH3COOH (Ka = 1.8 x 10)?

Write each of the following numbers in exponential or scientific notation. Write each number to two decimal places with only one non-zero digit before the decimal point. Example: Use  not  or . 7420        0.000989        56900        0.00342        Submit Answer

Complete the following table Material Mass of Displaced Water (g) Mass of Sample (g) Volume of Sample (mL) Density of Material (g/mL) Metal 1 0.36 3.17 (A)  (D)  Metal 2 0.46 3.73 (B)  (E)  Metal 3 0.47 3.67 (C)  (F)

presented by Macmillan Classify each of the substances as an element or compound. Element Compound Answer Bank FeN CuSO, Co CO

QUESTION 11 When a substance undergoes a chemical change it is always true that ______________     heat is absorbed      it changes state     its chemical properties changes     it changes color

Which of the following is a chemical property and NOT a physical property?    Group of answer choices   Surface Tension Density Flammability Malleability Color

how do you define chemistry

n a bicycle factory, it requires two wheels and one frame to constuct a full bike. If there are 32 bike wheels and 27 frames, which component limits how many bikes you can make? Group of answer choices Bike wheels Bike frames

Choose Physical or Chemical Change to describe the changed described. A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar crystals "disappear" and the liquid in the beaker remains clear and colorless.  Group of answer choices a) Chemical b) Physical

need answer fast in 20 minutes