The progressive change of fossilized vegetation into metamorphic rock progresses first from bituminous coal to anthracite coal and finally to marble. 1.)True
2.)False

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

What element has similar physical and chemical properties as boron.