Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is th
formula equation for this reaction?
F2(0)+ Na(s) - NaF 2(s)
F2(g) + Ca(s) - CaF201)
F2(g) + Na(s) - A > NaF2(1)
F2(g) + Ca(s) A > CaF2(s)

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.