Using the periodical table, choose the more reactive nonmetal ca or ra

The physical state in which a substance has a no definite volume is:

What is the oxidation state of an element?

Where is pollen produced

What is an air front

How can the electromagnetic force be increased? What different things affect the magnetic strength?

In this reaction, what is the substance oxidized? zn (s) + 2 hcl (aq) → zncl2 (aq) + h2 (g) zinc chloride chlorine hydrogen zn oxygen

Which best compares and contrasts how john newlands and dmitri mendeleev organized elements? both newlands and mendeleev arranged elements according to their chemical properties, but only newlands used atomic mass as well.

Halle la cantidad de protones, si el número de masa es 94 y el número de neutrones es 37. a) 40 b) 57 c) 60 d) 70 e) 131

Which equation is associated with the first ionization of sodium? A. Na (g) - Na + (g) + e- B. Na (s) - Na + (g) + e- C. Na (g) Na - (g) + e- D. Na (g) + e - Na - (g)

The pressure in an automobile tire filled with air is 245.0 kPa. If Po2 = 51.3 kPa, Pco2 = 0.10 kPa, and P-others = 2.3 kPa, what is Pn2?