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When heated borax undergoes various transitions,first it loses water molecules and swells,then it turns into a transparent liquid solidifying to for a glass like structure called borax beads.
Na2B4O7.10H20 -->heating Na2B4O7 -->heating 2NaBO2 + B2O3
BORAX SODIUM BORIC
METABORATE ANHYDRIDE
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What happen when borax is heated with CaO?
When borax is heated with CaO, the borax is decomposed to form sodium metaborate and calcium metaborate. This reaction is usually used in analytical chemistry to detect the presence of boron in a sample.
What will happen when lead nitrate is heated strongly?
A thermal decomposition reaction occur: lead oxide, nitrogen dioxide and oxygen are obtained.
Why does borax burn green?
Borax burns green due to the presence of boron in its chemical composition. When borax is heated, the electrons in the boron atoms are excited to higher energy levels, and as they return to their original state, they emit green light. This phenomenon is known as green flame emission.
When lead nitrate is heated strongly what does it evolve?
When lead nitrate is heated strongly, it decomposes to form lead oxide, nitrogen dioxide gas, and oxygen gas.
Which gas is evolved when lead nitrate is strongly heated?
When lead nitrate is strongly heated, it decomposes to produce nitrogen dioxide gas (NO2), which is a brown gas with a sharp, acrid odor.
What happen when hydrated borax is heated strongly?
On heating, borax first loses water molecules and swells up.On further heating it turns into a transparent liquid, which solidifies into glass like material known as borax bead. Na2B4O7.10H2O -----heat------>Na2B4O7------heat------>2NaBO2+B2O3 Sodium Boric metaborate anhydride
What happen when borax is heated with CaO?
When borax is heated with CaO, the borax is decomposed to form sodium metaborate and calcium metaborate. This reaction is usually used in analytical chemistry to detect the presence of boron in a sample.
What will happen if borax was on your arm?
Borax is harmless.
What happens when borax is heated?
When heated borax undergoes various transitions,first it loses water molecules and swells,then it turns into a transparent liquid solidifying to for a glass like structure called borax beads. Na2B4O7.10H20 -->heating Na2B4O7 -->heating 2NaBO2 + B2O3 BORAX SODIUM BORIC METABORATE ANHYDRIDE
What is obtained when natural gas is strongly heated?
when natural gas is strongly heated, hydrogen(H) and carbon(C) are obtained.
When iron is heated strongly in air its weight strongly increases?
i will ask a friend
If you take borax and boiling water and make crystals is this a physical change or a chemical change?
It is a chemical change, because the borax reacts to the heated water.
Give equations to represent the following reactions.(a) Borax is heated with CaO?
The chemical equation to represent the reaction between borax (Na2B4O7) and CaO (calcium oxide) when heated is: Na2B4O7 + CaO → CaB4O7 + Na2O In this reaction, borax and calcium oxide react to form calcium tetraborate (CaB4O7) and sodium oxide (Na2O) as the products.
What is the principle behind borax fusion test?
The bead of borax with some powdered sample is heated in a flame; the color of the bead is specific for each element and is used as a qualitative analysis.
What will happen when lead nitrate is heated strongly?
A thermal decomposition reaction occur: lead oxide, nitrogen dioxide and oxygen are obtained.
Why does borax burn green?
Borax burns green due to the presence of boron in its chemical composition. When borax is heated, the electrons in the boron atoms are excited to higher energy levels, and as they return to their original state, they emit green light. This phenomenon is known as green flame emission.
When lead nitrate is heated strongly what does it evolve?
When lead nitrate is heated strongly, it decomposes to form lead oxide, nitrogen dioxide gas, and oxygen gas.
