10. Hydrogen can exist as a liquid only at very low

temperatures. This is primarily because the attractive

forces between the molecules are

A) van der Waals forces

B) ionic bonds

C) hydrogen bonds

D) covalent forces

1. What is the term for a state of matter that has a definite volume and a definite shape?

For questions 22-24, write an equation for the reaction of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride. (Page 582 and Page 567-568) 32) 22. Show the formulas of the reactants. ike a 23.

Magnesium bromide as a subscript

Butene has two isomers one with methyl groups on the same side of the double bond and the other with methyl groups on the opposite side. What kind of isomers are these?

Is human cloning forbidden and why?

2. An automobile tire has a pressure of 210 kPa at 293 K. What will be the tire pressure after driving, if the tire temperature rises to 308 K?

Students measuring the mass of a rock record 6.759 g, 6.786 g, 6.812 g, and 6.779 g. Which other measurement of the block's mass would be most precise? A. 6.702 g B. 6.781 g C. 6.605 g D. 6.858 g

What two elements make up dihydrogen monoxide?

What did scientists observe using the earliest microscopes

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.