C the answer is cesium, study's show that it has the lowest ionization out of all elements. Hope this helped!
If points E and D are midpoints of triangle ABC, then the perimeter of the triangle is:AB + BC + CA = 48, or:
3 t + 3 t + 4 t + 4 t + 7 t + 6 = 4821 t = 48 - 621 t = 42t = 42 : 21t = 2Answer: A. 2.
They are Acids
when acids are in water they dissociate and release H+ ions into the water
while bases release OH- ions
hope that helps