Complete and balance the following reactions ca+H

Which of the following elements is most metallic? A. boron B. carbon C. nitrogen D. fluorine E. sodium

What process moves water from the hydrosphere to the atmosphere? collection precipitation condensation evaporation

Select the correct answer. What is the chemical name of the covalent compound P20,? A. tetraphosphorus nonaoxygen B. tetraphosphate nonoxygen C. tetraphosphide nonaoxide D. tetraphosphorus nonoxide the plato

3 The volume of a gas is 50.0 mL at 20.0 K. What will be the new temperature if the gas is compressed to 10.0 mL under constant pressure? A 100 K B 10.0 K C4.00 K D 5.00 K

A 68-kg man whose average body temperature is 39°C drinks 1 L of cold water at 3°C in an effort to cool down. Taking the average specific heat of the human body to be 3.

How was it possible that Mendeleev was able to predict the properties of elements that no one knew about

6.00*10^7 + (1.44x10^-3 * 6.77x10^8)

A. monotomic ionic b. polyatomic covalent C. polyatomic ionic d. binary molecular 1 Sulfur hexafluoride is an example of a a. monatomic ion b. polyatomic ion chinary compound d. polyatomic compound

Which factor impacts the possible number of ways in which different atoms can be put together?

How many particles are in 1 mole of a substance?