The Boy In The Striped Pajama

Why does grandmother claim that father had come to harm during WW1?

Why is oil called a hydrophobic substance? a. oil is very slippery to the touch. b. oil is flammable and water puts out fires. c. oil mixes with water only at high temperatures. d. the chemical nature of oil prevents it from dissolving in water.

What characteristic do most aquatic plants have in common? A) stems with lots of thorns to fight off predator B) Can survive without sunlight C) Can survive with little water D) Flat leaves for floating in water

How do you find out the average rate of reaction

If a sample of helium gas has a volume of 200.0mL at. 960 atm, what will the pressure be if the volume is reduced to 50.0mL (temperature and number of gas molecules remain constant) ?

How many moles of silver atoms are in 1.8 à - 10^20 atoms of silver? a) 3.0 à - 10^2 b) 1.1 à - 10^44 c) 3.3 à - 10^â€"3 d) 3.0 à - 10^â€"4

What types of star can explode in a supernova

Which graph best shows the relationship between kelvin temperature and average kinetic energy?

Can matter exist at a temperature below absolute zero? Why or why not?

When group 17 elements become ions they have a charge of?

The first periodic table developed by Mendeleev was not completely accurate, but was a great step toward accomplishing the periodic table of elements we use today. Explain how the modern periodic table is credible today because of Mendeleev's work.