Question 7 (1 point) 3
A 225 mL gas syringe was at a pressure of 99.3 kPa at 15.0 °C. On the following day,
the temperature increased to 25.9 °C and the new volume was 221.2 mL. What was
the atmospheric pressure on this day?

Work for the question above:

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.

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8

Which of the following describes the entropy change as a solution is made from a liquid and solid