amjad

This page lists questions and answers that were posted by visitors named amjad.

Questions

The following questions were asked by visitors named amjad.

how many HCl needed to dissolve 1 grams of Al2O3.

Answers

The following answers were posted by visitors named amjad.

Your answer: 130 km/hr The change in velocity is the final velocity minus the initial velocity which in this case is adding the 80 km/hr arrow to the negative of the 50 km/hr arrow. This makes both the arrows point in the same direction, so the magnitudes...