The relative atomic mass of aluminium is 27 and of oxygen is 16. The aluminium ore shown below contains 5. 4kg of aluminium and 4. 8kg of oxygen. What is the value of x?.

What happens to the composition of an atom to cause it to become positively or negatively charged?

Assessment includes a. interviews, recorded conversations, videos, frequency counts, and time samples. b. formal standardized tests and developmental screening tools. c. various types of documented observations, documentation of child work, checklists, rating scales, and standardized tests. d. anecdotal notes, narratives or daily records, daily health checks, and teacher observation checklists.

When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me