How many neutrons are there in Phosporus-15?

Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. a. If 16.2 g Mg are heated with 12.0 g H2O, what is the limiting reactant? b. How many moles of the excess reactant are left? c.

Which of the following measurements is written with two significant figures? A. 0.00400 mL B. 0.00404 mL C. 0.00044 mL D. 0.00440 mL

If you administering an oral acetaminophen dose of 320. mg from a bottle of 32.0 mg / ml, how many mililitters of the solution do you need

A region in which there is a high probability of finding an electron is called a field. true or false

Which element or elements are unbalanced in this equation? MgO + 2 LiCl → MgCl2 + Li2O A) Mg B) Li C) All elements are balanced. D) Cl

How would the equilibrium of an exothermic reaction at 25°c be affected if the temperature of the system were reduced? (hint: apply le chatelier's principle) ?

Which is the most practical argument for the continued funding of space exploration? a) Space exploration will one day show whether life exists on other planets in star systems similar to ours.

33 protons 36 electrons 45 neutrons

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?

The pOH of a solution is 13.28. What is the [OH]