Test chemical processes

Product description

11.1. Mendeleev's law in the modern formulation: the properties of elements, as well as the forms and properties of their compounds are in periodic dependence on ...

A) atomic masses of elements;

B) the number of nucleons in the nucleus;

B) the total number of elementary particles in the atom; D) the number ē in the atom.

11.2. Pure substance (as opposed to families) is ...

A) alum; B) bronze;

B) bromine water; D) liquid glass.

11.3. The chemical properties of the elements are determined:

A) the structure of atomic nuclei;

B) the velocity of the molecules;

B) the condition for carrying out chemical reactions;

D) electronic structure of atoms;

11.4. Electrically charged particles that appear in the process of electrolysis are:

A) radicals; B) ions;

B) molecules;

D) macromolecules.

11.5. According to modern concepts, a chemical compound possesses:

A) only by a constant composition;

B) macromolecular composition;

B) one or more chemical elements;

D) only by a variable composition.

11.6. The properties of the molecule are determined by:

A) interaction of heterogeneously charged atoms;

B) the nature of the compound of variable composition;

B) interaction of atomic groups;

D) the nature of the physicochemical interaction of the constituent atoms.

11.7. The course of the chemical reaction is most influenced by:

A) temperature;

B) pressure; B) lighting;

D) Catalyst.

11.8. Of the organogens on Earth, the most common are:

A) Carbon and oxygen;

B) carbon and sulfur;

B) oxygen and nitrogen;

D) oxygen and hydrogen.

11.9. In the conditions of the "hot" Universe catalysis:

A) was absent; B) began;

C) has become more active;

D) is over.

11.10. Outside the planet, the most common chemical elements are:

A) the entire periodic table;

B) metals and non-metals;

B) hydrogen and helium;

D) helium and carbon.

Additional information

#Chemical Process Tests