Two vessels containing gases are separated by a stopcock. The first holds 2.0 L of nitrogen at 1.0 atm and 25°C; the second contains 3.0 L of oxygen at 2.0 atm and 25°C. (a) When the stopcock is opened, how does the volume of N, change? What is the partial pressure of N, after mixing? (b) How does the volume of O, gas change after mixing? What is the partial pressure of O, in the mixture? (c) What is the total pressure of gas in the mixture?​

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Select the correct lewis structure for fluorine which is group 7a element?