Which particle is emitted when an atom of 85Kr spontaneously decays?

(1) an alpha particle (3) a neutron

(2) a beta particle (4) a proton

Find the molar mass of 2Cu (NO3) 2

Where are electrons received and donated at in a galvanic cell?

If cacl2 is dissolved in water, what can be said about the concentration of the ca2 + ion? hints if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl - ion.

Un mol de amoniaco Tiene una masa molar de 17 g y ocupa un volumen de 22.4 l qué volumen ocupa el 50 g amoniaco en condiciones normales de temperatura y presión

5 Which polyatomic ion is found in the compound represented by the formula NaHCO3? (1) acetate (3) hydrogen sulfate (2) hydrogen carbonate (4) oxalate

Which substance is a diatomic molecule? a. he b. o2 c. co2 d. h2o?

What is the difference between the electronegativity values of sodium and bromine?

Which of the following elements is the most stable element? argon, manganese, phosphorus, robidium

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring