A teacher wrote the following part of a balanced chemical equation: Cu+2AgNO 3 To show the conservation of matter in the chemical reaction , how many silver (Ag) atoms will be needed on the right-hand side of the balanced equation ?

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table