Sodium metal reacts with water to produce hydrogen gas. What best describes this reaction? (2 points)
A combustion reaction takes place.
O A double replacement reaction takes place.
O A synthesis reaction takes place.
O A single replacement reaction takes place.

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83