Question

Расставить валентности в соединениях (SO2 ;PH3;CI2O7; BaCL2;NaCI;MgBr2;SCI4)

Answer 1

Ответ:

S⁴O₂² сера(IV), кислород(II)

P³H₃¹ фосфор(III), водород(I)

CI₂⁷O₇² хлор(VII), кислород(II)

Ba²CI₂¹ барий(II), хлор(I)

Na¹CI¹ натрий(I),хлор(I)

Mg²Br₂¹ магний(II), бром(I)

S⁴CI₄¹ сера(IV), хлор(I)

Answer 2

Ответ:SO2 S-4 O-2 , PH3 P-3 H-1,Cl2O7 Cl-7 O-2, BaCl2 Ba-2 Cl-1

NaCl Na-1 Cl-1 MgBr2 Mg-2 Br-1 SCl4 S-4 Cl-1

Объяснение:

Answer 3

Valency, or valence, refers to the number of chemical bonds that an atom can form with other atoms to create a molecule. Let's determine the valencies for each element in the given compounds:

1. SO2 (Sulfur dioxide)

• Sulfur (S) has a valency of 6.
• Oxygen (O) has a valency of 2.

SO2 has the following valency: S(6) O(2)

2. PH3 (Phosphine)

• Phosphorus (P) has a valency of 3.
• Hydrogen (H) has a valency of 1.

PH3 has the following valency: P(3) H(1)

3. Cl2O7 (Dichlorine heptoxide)

• Chlorine (Cl) has a valency of 1 (usually -1 in compounds with oxygen, but here it's in an oxide).
• Oxygen (O) has a valency of 2.

Cl2O7 has the following valency: Cl(1) O(2)

4. BaCl2 (Barium chloride)

• Barium (Ba) has a valency of 2.
• Chlorine (Cl) has a valency of 1.

BaCl2 has the following valency: Ba(2) Cl(1)

5. NaCl (Sodium chloride)

• Sodium (Na) has a valency of 1.
• Chlorine (Cl) has a valency of 1.

NaCl has the following valency: Na(1) Cl(1)

6. MgBr2 (Magnesium bromide)

• Magnesium (Mg) has a valency of 2.
• Bromine (Br) has a valency of 1.

MgBr2 has the following valency: Mg(2) Br(1)

7. SCI4 (Sulfur tetrachloride)

• Sulfur (S) has a valency of 6.
• Chlorine (Cl) has a valency of 1.

SCI4 has the following valency: S(6) Cl(1)

Note: In some cases, the valency may differ due to the presence of specific elements in a compound or the oxidation state of the elements involved. However, the valencies provided above are the commonly observed valencies for these elements.