Element atomlarining boshqa elementlarning muayyan sondagi atomlarini biriktirib olish xususiyati

=============================
2, 4
+++++++++++++++++++++++++++++

Quyidagilardan qaytaruvchilik xossasi eng yuqori bo‘lgan anionni ko‘rsating.

============================
O^2-
==========================
# Te^2-
============================
Se^2-
==============================
S^2-
++++++++++++++++++++++++++++++

16. Qaysi moddaning suvli eritmasiga soda qo‘shilganda gidroliz susayadi?

=====================
CrCl₃
=======================
FeBr2
=============================
Al₂(SO4)_{3
=================================}
# K₂S
++++++++++++++++++++++++++++

17. Qaysi tuzning suvli eritmasida pH > 7 bo‘ladi? (T = 298 K)

==============================
ZnCl₂
==============================
AgCl
===============================
NaNO₃
=================================
# K₂CO_{3
++++++++++++++++++++++++++++++++++++++++++++++++++++}
Qaysi tuzlar suvli eritmada qaytmas gidrolizga uchraydi? 1) Al₂S₃, 2) MgCl₂; 3) NaNO₃; 4) HgF₂.
==================
3, 4
===================
# 1, 4
===================
2, 3
====================
1, 2
++++++++++++++++++

Qaysi moddalar suvda eritilganda pH qiymati ortadi? 1) CH3ONa,; 2) CuCl₂; 3) Na₂S 4) Fe(NO₃)₂.

================
2, 4
==================
# 1, 3
==================
2, 3
=====================
1, 4
++++++++++++++++++++++

Qaysi faktorlar yordamida natriy asetat gidrolizini kuchaytirish mumkin?

1) NaOH qo‘shish; 2) eritmani qizdirish; 3) HCl qo‘shish; 4) eritmani sovutish
==========================
3, 4
==============================
1, 3
===============================
# 2, 3