When the Statue was unveiled in 1886, it was a shiny brown color, like a penny. The reason the Statue of Liberty changed colors is that the outer surface is covered with hundreds of thin copper sheets. Copper reacts with the air to form a patina. This is an example of a . Physical Change
Chemical Change
Chemical Property
Physical Property

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?