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Questions in chemistry

[Answered] Is melting cheese a physical or chemical change?

[Answered] When a car travels around a curve in the road, what helps to keep the car driving in a curved path?

[Answered] What type of rock does preexisting rock become?

[Answered] Which process requires the removal of heat, melting or freezing? Is it evaporation? What is it? Why?

[Answered] Calculate the molar mass of the following compounds: - FeCl3 - Fe2(SO4)3 - PbO - PbO2 - Pb3O4

[Answered] What type of eruption is associated with a shield volcano?

[Answered] Which of the following compounds would be most effective in lowering the melting point of ice on roads? A. CaCl2 B. NaCl C. K3PO4 D. K2SO4

[Answered] What is a harmful effect of electrical resistance?

[Answered] Calculate the density of a rectangular metal bar that is 7.00 cm long, 4.00 cm wide, and 1.00 cm thick, with a mass of 352 g.

[Answered] Calculate the molar mass of the following compounds: 1. CaCl\(_2\) 2. Ca(NO\(_3\))\(_2\) 3. Ca(OH)\(_2\) 4. CaSO\(_4\) 5. BaCl\(_2\)