Which is the correct chemical equation for the following statement? “Sodium reacts with oxygen in a 2 to 1 ratio to produce sodium oxide.” Na 2 + O 2 ® 2 N aO
Na 2 O + O 2 ® 2 N a
Na 2 O ® 2 N a + O \2
4Na + 2O 2 ® 2Na 2 O

the answer is false

explanation:

c) up

hope this

more than, less

less than, more

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west