Acid and Base Characteristics

Substance A Substance B Substance C Substance D
Sour taste Bitter taste Neutral taste Sharp taste
Strongly conducts electricity. Strongly conducts electricity. Weakly conducts electricity. Strongly conducts electricity.
Reacts with most metals to generate hydrogen gas. Can react to make soap. Can react with acids or bases. Generally will not react.

Which substance will cause litmus paper to turn red?

A) A
B) B
C) C
D) D

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2