Which statement is true about HCl? a) It is a salt because it increases the concentration of metallic ions
b) It is a salt because it is formed by the reaction of an acid and a base
c) It is an acid because it increases the concentration of hydroxide ions
d) It is an acid because it increases the concentration of hydrogen ions

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Identify the electromagnets with poles that are reversed from the electromagnet shown above

C=59(f−32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius.a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.a) i onlyb) ii onlyc) iii onlyd) i and ii only