Answers: 2
Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 23.06.2019 04:00
If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?
Answers: 3
Chemistry, 23.06.2019 19:00
How can evidence from an experiment be explained in her relationship to the hypothesis? a.as a prediction b.as a question c.as an in inference d.as a conclusion
Answers: 2
Chemistry, 23.06.2019 20:30
1.how did scientists discover that all living things are made of cells? 2. how did pasteur’s experiment with the flasks disprove the idea that living things could just appear or come from nonliving things like water and air? 3. why are nutrients needed for living things? describe the difference between living and nonliving things
Answers: 2
In the reaction of Zn with HCl, 140.15 g of ZnCl2 was actually formed, although the theoretical yiel...
Engineering, 29.09.2019 01:10
Engineering, 29.09.2019 01:10
Engineering, 29.09.2019 01:10
Engineering, 29.09.2019 01:10