Answer:
A. They all contain oxygen
B. They all have a charge of 1-
Explanation:
Here goes the question with no exact answer, lol <3
Scientists tell us that the observable universe is about 90 light years but then I wonder how they calculated that because the universe is immense!
I'm sorry but I can't go deeper into explaining as that's a tough question.
When non metallic oxide for example SO2 dissolved in water it produces sulphurous acid. SO2 + H2O → H2SO3 When metallic oxide reacts with water it produces Metal hydroxides. Na2O + H2O → 2NaOH
Total number of students (male and female) in the college=2760. Total number of students including both male and female represents 100% (percentage) of students which is equal to 2760 number.
Number of male students is 65% (percentage) which is equal to 
= 1794. So, total number of female students are (100-65)%=35% (percentage) which is equal to 
=966 numbers.
