Which of these is an example of a negative incentive? A. Joe gets a tax rebate for donating to a charity. B. Ted is grounded for missing his weeknight curfew. C. Clara gets a “D” on a test for which she studied hard. D. Donna gets extra pocket money for helping with chores.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?