Q10 A gas has a volume of 2.8 L at a temperature of 27 °C. What temperature (°C) needed to expand the volume to 15 L? (P and n are constant.)

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange