Does anyone now what type of igneous rock this is?

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Abnormal softening of a gland is known as