What type of change is matter conserved? select one: a. physical only b. chemical only c. physical and chemical

Complete this brønsted-lowry reaction placing each product by its appropriate label. hso4- + hcn

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

Which subshell is represented by the actinides family?