From the list of the instructions and tips below, select the statement that would not lead to a successful recrystallization.

What represents a community? pond B a snail snails D snails, guppies and plants

OLga [1]

D snails, guppies and plants. The community should be diverse and have lots of biodiversity.

7 0

3 years ago

Which of the following chemicals effects blood pressure for both the short and long term?

andriy [413]

The chemical that effects blood pressure for both the short and long term is Angiotensin II

8 0

3 years ago

Which of the following atoms has the greatest atomic radius? Oxygen (o) fluorine (F) Chlorine (CL) Carbon (C)

Andrei [34K]

Periodic Trend:

The Atomic radius of atoms generally decreases from left to right across a period

Group Trend:

The atomic radius of atoms generally increases from top to bottom within a group. As atomic number increases down a group, there is a increase in the positive nuclear charge, however the co-occurring increase in the number of orbitals wins out, increasing the atomic radius down a group in the periodic table

Answer :

The Atom with the greatest atomic radius is chlorine. Fluorine can be ruled out because it is in the same period as oxygen and further to the right down the period. Chlorine has the largest atomic size because it is farthest down the group of any of the above elements listed.

5 0

3 years ago

What is the atomic number, mass number, element symbol, group number, and period number for oxygen?

yawa3891 [41]

Answer:

Atomic no. = 8

Mass no. = 16

Period no. = 2

Group no. = 6

4 0

3 years ago

At 1000 K, Kp=19.9 for the reaction Fe2O3(s)+3CO(g)<--->2Fe(s)+3CO2(g) What are the equilibrium partial pressures of CO an