Iodine Hydrogen Iron Lithium Boron Beryllium
How many of the substances above are held by metallic bonds? ___ ( a number.)

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of