For an experiment, you are required to measure out 13 mL of alcohol. The first time, you measured out 12.4 mL. The second time, you measured out 12.5 mL. The third time, you measured out 12.4 mL. You are . a. accurate and imprecise
b. inaccurate and imprecise
c. accurate and precise
d. inaccurate and precise

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.