A sample of an element is malleable and can conduct electricity. This element could be

(1) H (3) S

(2) He (4) Sn

Boron exists in two isotopes, boron-10 and boron-11. based on the atomic mass, which isotope should be more abundant

What would you use to measure the volume of a liquid? graduated cylinder ruler spectroscope balance

Stephanie purchased two watermelons. One watermelon weighed 6.95 kilograms. The second watermelon weighed 952 grams more than the first. How much did the second watermelon weigh in grams? 1 kilogram = 1000 grams grams

The first four ionization energies for an imaginary element, Xz, are E1 = 102 kcal, E2 = 186 kcal, E3 = 4021 kcal, and E4 = 4862 kcal. The most probable number of valence electrons as indicated by this ionization data is:

A medical class is hearing a lecture on vision. The doctor asks them what happens when the eye produces too much fluid, causing an increase of pressure within the eye. What condition is the doctor discussing

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient for the H + (aq) ion.

Toussaint L' ouveeture lead a revolt that eventually resulted in Independence for

If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated with o2, how many binding sites are occupied by o2?

A. what are isotopes? b. how are the isotopes of a particular element alike? c. how are they different?

The line of longitude used as the origin in a system of coordinates