Explain what are enzymes?

633

---

Explain the function of mitochondria?

576

---

Explain the secondary structure of proteins?

563

---

What group of elements were called the inert gases?

589

---

How tripod is used?

638

---

Explain how do you prepare a solution of 1 m hcl?

582

---

Define a substituted hydrocarbon?

620

---

Explain why do some medications contain hcl?

641

---

What is the atomic number?

556

---

Explain the difference in the modern periodic table and mendeleevs table?

571

---

How are atoms of the isotopes different from one another? Two isotopes of carbon are carbon-12 and carbon-14.

558

---

Explain the chemical formula for dichromate?

602

---

Name the branch of chemistry that deals with the relationship between electricity and chemical reactions?

724

---

Tell me the common name of the molecule dihydrogen dioxide?

587

---

Explain the difference between the law of multiple proportions and the law of definite proportions?

577

---