The gas pressure in an oxygen tank is 3.90 atm at a temperature of 298 K. If the pressure decreases to 3.20 atm, what is the temperature of the gas in kelvin?

Phosphorus is found on the end of a match It is a red, nonmetal solid that is brittle and highly flammable. Identify the chemical property of phosphorus? a.) t is red b.) It is a nonmetal C.) t is brittle D.) It is highly flammable

How Many protons is there

Is H1 + An atom or an ion

What type of fuel must be most carefully contained and protected

42. What is the source of the electric current produced by a voltaic cell? a spontaneous oxidation-reduction reaction competing salt bridges non-spontaneous reduction at the cathode an imbalance of ion charges

Gaps in rock layers that develop when agents of erosion remove existing rock layers

Why are atoms always neutral

Question: Ron is a healthcare worker who needs to lift a heavy patient. Which kind of safety issue does this scenario relate to? A infection B. ergonomics C. human resources D. orientation

Which of the following is the best example of chemical weathering? (A) limestone rocks dissolving in water (B) plant roots growing through concrete and splitting it (C) waves carrying sand away from a beach (D) a large rock splitting into pieces

Is heat of fusion an extensive or intensive property? Why?