4. Magnesium and oxygen reaction to create 55 grams of magnesium oxide. How many grams of oxygen was used in this chemical reaction?
Mg + O2 → Mgo

Identify a specific example for each type of technology

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon