Brass and bronze are both (space) of copper because copper is the (space)
component in brass and bronze.

1st (space)
1.alloys
2.composites
3.variations
4.void

2nd (space)
1.main
2.most dense
3.most expensive
4.only

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)