гпа химия

What types of bonds are present in white phosphorus (P4)?

Contains covalent bonds.

What is the chemical formula for potassium?

K.

What is the chemical formula for chlorine?

Cl2.

What is the chemical formula for oxygen?

O2.

What is the chemical formula for magnesium nitrate?

Mg(NO3)2.

What is the chemical formula for sodium hydroxide?

NaOH.

What is the chemical formula for nitrous acid?

HNO2.

What is the chemical formula for magnesium hydroxide?

Mg(OH)2.

Which of the listed substances is an insoluble base?

Magnesium hydroxide.

How do you calculate the mass fraction of oxygen in magnesium hydroxide?

Use the formula mass of O divided by total mass.

What happens when excess potassium hydroxide is added to magnesium chloride solution?

A precipitate forms.

What are the possible reactions between sulfuric acid and potassium hydroxide?

Neutralization reaction occurs.

What type of reaction occurs between copper(II) nitrate and magnesium oxide?

Double displacement reaction.

What is the result of mixing silicon(IV) oxide with aluminum oxide?

Formation of a silicate compound.

What distinguishes metals from nonmetals in the periodic table?

Metals conduct electricity; nonmetals do not.