A radioisotope used for diagnosis must emit gamma rays of sufficient energy to escape from the body and it must have a half-life short enough for it to decay away soon after imaging is completed.

TRUE

FALSE

A chemical bond joins atoms or electrons? together in a molecule

What happens to the temp a ture of a substance while it is changing stae?

Which is an example of flow of heat through conduction

Which non energy yielding nutrient acts as a solvent and lubricant

The equilibrium constant, Kc, for the following reaction is 56.0 at 278 K. 2CH2Cl2 (g) CH4 (g) + CCl4 (g) When a sufficiently large sample of CH2Cl2 (g) is introduced into an evacuated vessel at 278 K, the equilibrium concentration of CCl4 (g) is

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

what noble gas electron configuration is achieved by the bromine atoms in a molecule of BR2, a diatomic element?

What are facts on osmosis?

If a map of temperature displayed stripes parallel to the equator with equal temperatures at equivalent distances north and south of the equator, it would mean that only blank affected temperature.

What is the term for the amount of salts in water? Evaporation Evaporation Salinity Thermocline Density