Holly has an unknown substance in a beaker. she wants to determine the relative ph of the unknown substance. she places a piece of blue litmus paper into the substance, and the litmus paper turns red. the substance in the beaker

What is the value of 200c on a Kelvin scale

Write the equation that shows the ionization of CHI bass in water

Select the correct answer Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kinetic energy A. 1.7 x 102 joules 1.5 x 102 miles C. 2.0 x 102 joules D.

When balancing a chemical equation which of the following is true? A) Subscripts cannot be changed. B) Coefficients cannot be changed. C) The number of atoms can be changed. D) Subscripts and coefficients can both be changed.

How many moles of carbon dioxide gas can be produced when 5.45 moles of benzene (C6H6) react with excess oxygen? Be sure to show the work that you did to solve this problem. Unbalanced equation: C6H6 + O2 "yields" / CO2 + H2O

What is formed when sediment is blown against an obstacle and settles behind it

Compared to the radius of a chlorine atom, the radius of a chloride ion is (1) larger because chlorine loses an electron (2) larger because chlorine gains an electron (3) smaller because chlorine loses an electron (4) smaller because chlorine gains

What do you think made the blizzard so dangerous?

If 6 moles of a compound produce 84 J of energy, what is the a Hreaction in J/mol?

If you were traveling through space and landed on a different planet, how might your mass and weight compare to their values on Earth? Why?