chemical change
Some indicators of a chemical reaction are:- formation of new compounds - change of color- change of odor- release of a gas- change of the temperature (absorption or release)- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion - sometimes a sound is produced - possible chemiluminescence
Signs of a chemical change include the formation of a precipitate, a color change, the release of gas (bubbles), and a temperature change (exothermic or endothermic). These changes indicate that new substances are being formed with different chemical properties than the original substances.
Color change in the reaction mixture. Formation of a gas, indicated by bubbles or fizzing. Change in temperature of the reaction mixture. Formation of a precipitate, where a solid appears in the mixture. Production of a new odor or change in smell of the reaction mixture.
There are 4 evidences of a chemical reaction : -Change of colour. -Formation of precipitate. -Release of energy. -Effervescence.
You think to the formation of a new compound with a different smell, color, appearance, possible the release of a gas, a precipitate, etc.
precipitate
a
Some indicators of a chemical reaction are:- formation of new compounds - change of color- change of odor- release of a gas- change of the temperature (absorption or release)- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion - sometimes a sound is produced - possible chemiluminescence
Signs of a chemical change include the formation of a precipitate, a color change, the release of gas (bubbles), and a temperature change (exothermic or endothermic). These changes indicate that new substances are being formed with different chemical properties than the original substances.
Color change in the reaction mixture. Formation of a gas, indicated by bubbles or fizzing. Change in temperature of the reaction mixture. Formation of a precipitate, where a solid appears in the mixture. Production of a new odor or change in smell of the reaction mixture.
There are 4 evidences of a chemical reaction : -Change of colour. -Formation of precipitate. -Release of energy. -Effervescence.
change in color, formation of gas and precipitate ;))
Types of evidence for chemical change include: A gas is evolved. A precipitate appears or disappears. Heat may be evolved or absorbed. A color change occurs. A substance disappears.
You think to the formation of a new compound with a different smell, color, appearance, possible the release of a gas, a precipitate, etc.
a colour change, a gas produced or a precipitate (new substance/solid) formed.
Color change, precipitate formation, gas formation, temperature change
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds.