Pha 200 ml dung dịch HNO3 0,1 M, H2SO4 0,1M với 300 ml dung dịch MgSO4 1M thu được dung dịch X. Tính nồng độ mol các ion trong dung dịch X.

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream

Remember to use the proper number of significant figures and leading zeros in all calculations. gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?