Is Ca + HNO3 a reaction?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

How have the greenhouse gasses increased from the year 2000 to 2018

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.