Homework Help for Chemistry

What is the cause of sea salinity?

What is the difference between coordination number and coordination geometry?

Correct or Wrong

Donor atom use lone pairs of electrons to bind/connect to a central metal ion?

What is denticity of the ligand?

What is the other name of coordination geometry?

What are ligands give an example?  

What is meant by Coordination Chemistry?

What are stereoisomers with examples?

Part B

Tape a meter stick to the side of the table. Make sure the zero end is on the floor. Carry out the experiment using the four drop heights you chose in task 1, part D. (You may want to have an adult drop the ball while you watch how high it bounces.) Perform three trials for each drop height, and record the data in the table. (You may choose to video the bounces and watch the video in slow motion to improve your data collection.) Finally, average the bounce height measurements to get a final reading. Round the average bounce heights to the nearest whole number.

*Please see the attachment*

What information would you have to know to determine the toughness of a solid?

Order   the   molecules   by   decreasing   strength   of   intermolecular   forces.   (Starting   with   the   strongest). HF  H 2 NBr 3 

The complex [Pt(NH) (SCN)] forms two
stereoisomers, whereas the complex [Pt(en)(SCN))
forms only one.
✓ What, if anything, does this prove about the geometry of these
complexes? Explain.
✓ As part of your answer, sketch and name these three isomers

1. 6 mol Ti; 6 mol Cl2

Given that

ΔfG°(NO2(g))=51.31 kJ mol-1, ΔfG°(N2O4(g))=97.89 kJ mol-1

is the reaction

2NO2(g)→N2O4(g)

spontaneous or non-spontaneous

For the formation of carbon dioxide from graphite and oxygen gas

C(s)+O2(g)→CO2(g)

ΔrH°=-393.51 kJ mol-1 and ΔrS°=+3.07 J mol-1 K-1.

Is this process

Spontaneous at all temperatures

Spontaneous at low temperatures but not spontaneous at high temperatures

Not spontaneous at low temperatures but spontaneous at high temperatures

Not spontaneous at any temperature