The following reaction can be classified as what type ( s ) of reaction ( s ) ? 2 Al ( OH ) 3 ( aq ) + 3 H2SO4 ( aq ) → Al2 ( SO4 ) 3 ( s ) + 6 H20 A) combustion
B) precipitation and acid-base neutralization
C) redox reaction
D) precipitation

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

Convert .347 kilometers to miles show your work