Answer: A lot of food chains
Explanation: A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
Answer:
C.it contradicted the heinsberg uncertainly principle
3, 9, 16 are correct! 17 should be b because buffered means that it resists change in pH
Since pKa = -log10(Ka), for every pKa value of 1 an acid is below another, the acid is 10 times stronger. Therefore acid A is 10^4 = 10000 times stronger than B.