Which scientist is credited with the discovery of the electron

Which of the following pairs of elements would form a substance that is held together by metallic bonds?

An iron atom has an atomic number of 26 and an atomic mass of 55.8 amu. How many protons does an iron atom have?

Write out the balanced equation for the reaction that occurs when Li and H2O react together. You do not need to make your subscripts smaller; just write them out as regular numbers. For example: H2O.

How many liters of HCl gas, measured at 30.0 °C and 745 torr, are required to prepare 1.25 L of a 3.20-M solution of hydrochloric acid?

A blood test shows clumps only in wells containing anti-A and anti-B antibodies. The Rhesus test was negative. Which is the correct blood type? ~ A- ~ B+ ~ A+ ~ AB-

As water is added to a 0.10 M NaCl aqueous solution, the conductivity of the resulting solution

Which process creates food for plants in order to maintain homeostasis? Breathing Cell division Cellular respiration Photosynthesis

What is the percentage composition of soap (C12H35COON) ?

Which of the following pairs of elements are likely to form ionic compounds? Check all that apply. sodium and potassium nitrogen and iodine potassium and sulfur chlorine and bromine helium and oxygen magnesium and chlorine

What are some examples of things you expect to see when observing a chemical reaction?