Answer: En estos grupos de los elementos de transición se encuentran las llamadas tierras raras, separadas del resto de elementos de la tabla, que pertenecen al grupo IIIB y se les conoce como lantánidos y actínidos.

6 0

2 years ago

Ionic formula for ethanoate ion

statuscvo [17]

Nomenclature and common formula. When part of a salt, the formula of the acetate ion is written as CH3CO2−, C2H3O2−, or CH3COO−. Chemists abbreviate acetate as OAc− or, less commonly, AcO−. Thus, HOAc is the abbreviation for acetic acid, NaOAc for sodium acetate, and EtOAc for ethyl acetate.

4 0

3 years ago

Substance P is carbon.

stepan [7]

Explanation:

substance Q could be oxygen (O2)

substance R could be carbon dioxide (CO2)

4 0

3 years ago

Specific Heat Practice

Alexxx [7]

Answer:

See below

Explanation:

Specific Heat of water = 4.186 J/(g-C)

J/(g-C) multiplied by g and C results in J

4.186 * 540 * (95-32) = 142 407 .72 J

3 0

2 years ago