What is plate tectonics

Element X reacts with iron to form two different compounds with the formulas FeX and Fe2X3. To which group on the Periodic Table does element X belong?

For the reaction represented by the equation Pb (NO3) 2 + 2KI → PbI2 + 2KNO3, how many moles of lead iodide are produced from 3.0 moles of potassium iodide when Pb (NO3) 2 is in excess?

True or False? Buoyancy is an upward force exerted by a fluid on a submerged object.

What atom is an electrically neutral atom has 47 electrons and 61 neutrons

Identify the most common reaction conditions for the dehydration of 2,3-dimethyl-2-pentanol. Select all that apply. A. The presence of a platinum catalyst. B. The presence of excess H2O. C. The presence of acetone. D. The presence of a base catalyst.

Why is the isotope mass multiplied by the isotopes percent abundance?

Rank the following substances in order from most soluble in water to least soluble in water: ethane, C2H6; 2-butanol, C4H9OH; potassium chloride, KCl; and propane, C3H8.

What information can be learned about the element chlorine (Cl) by looking at the periodic table? Select all that apply. chlorine has 35.45 protons chlorine has 35.45 neutrons chlorine has 17 protons chlorine has 17 electrons

Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g) When combining zinc metal with hydrochloric acid, you notice that you run out of zinc and still have plenty of hydrochloric acid to continue the reaction. What is the term used to describe the zinc?

Engineers increase output in crop production by combining the strengths of two plants. This can be done by using one plant to pollinate a different plant so that their strengths are combined into a new plant. What is this technique called?