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.