Whatvis thr atomic number of a sodium atom that has 11 protons and 12 neutrons?

According to the chart below, which nation suffered the greatest loss of military personnel? China Germany the Soviet Union the United States

The water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which substance is the solvent in this mixture?

A student in science class observes a cell under the microscope and sees an organelle that only appears in plant cells. What is the organelle?

Find the mass of each of these substances? 2.40 mol NaOH

Why is bronze considered an alloy? Bronze is a hard, golden-brown metal. Bronze is made of the metals copper and tin. O Bronze has been used by people for millennia. Bronze can be shaped to make tools.

Milk Sours. Physical Change? Chemical Change? Both?

Unstable isotopes occur when the strong force is unable to overcome the

Where do dogs come from

How would you prepare 500 ml of a 0.2% solution of the detergent Tween-20? This reagent is a liquid in its pure state.

Gymnast always perform on padded mats. how does the mats protect the gymnast