What is the half-life of the fictitious radioisotope"pennium"?

Which would be most likely be the pH of a highly-corrosive acid? a) 1 b) 5 c) 8 D) 11

Which of these charge distributions did not have its electric field calculated in Chapter 23A. A line of chargeB. A parallel-plate capacitorC. A ring of chargeD. A plane of chargeE. They were all determined

The number of mole of a molecule is defined as its mass per molar mass. Using # mol = n, mass = m and molar mass = M and given that n = M m, rearrange this expression for (a) M = ? (b) m = ? (c) If n = 0.

Which expression is equivalent to 6m + (m - 2) (m + 7) + 3? m2 + 11m-11 m² + 6m-11 7m + 47m-11 7m2+47m-14

What is the difference between atoms and molecules?

Can y'all give me some examples of physical changes

A nitrogen-containing compound shows no absorption band at ∼3400cm-1 and no absorption bands between ∼1700cm-1 and ∼1600cm-1. what class of compound is it

What is the mass of 35.2 ml of a solution that has a density of 1.12 g/cm (in dimensional analysis)

What is the molecular geometry, or shape, of beryllium chloride (becl2) ?

What is the best category for nf3? 1. amphoteric ion 2. lewis acid 3. salt 4. bronsted-lowry acid 5. arrhenius acid 6. arrhenius base 7. lewis base 8. weak electrolyte?