0
What else can I help you with?
What solid residue will turn from green to black if heated?
Copper(II) nitrate will turn from green to black when heated due to the decomposition of the compound. The green color is due to the presence of copper ions, which decompose into copper oxide when heated, resulting in the color change to black.
Which sequence correctly identifies the change in colors during the benedict's test?
The color change during the Benedict's test progresses from blue (before heating) to green, yellow, orange, red, and finally brick red (after heating), indicating increasing levels of reducing sugars present in the sample.
What is a black rock at first but turns green later?
A black rock that turns green later is likely serpentine, a green mineral that may weather from black-colored rocks like basalt or peridotite. This color change occurs due to the alteration of minerals in the rock, resulting in the development of green-colored minerals like serpentine.
Is copper turning green when exposed to the environment a chemical change?
Chemical because it is being exposed to another compound and forming a new substance
Why is decomposition of a compound a chemical change?
Decomposition is a chemical change because the nature of the compound that has decomposed is now a different or several different chemicals after decomposition. It cannot be converted back to what it was, and so this is a chemical change.
When a green powder is heated it turns black and a gas is produced is this a reversible or irreversible change?
when green powder is heated, it turns black and a gas is produced. in irreversible changes, new materials are always formed. given that a gas is produced, which is a new material, heating green powder is an irreversible change.
What solid residue will turn from green to black if heated?
Copper(II) nitrate will turn from green to black when heated due to the decomposition of the compound. The green color is due to the presence of copper ions, which decompose into copper oxide when heated, resulting in the color change to black.
When green powder is heated it turns black and a gas is produced is this a reversible or irreversible change?
when green powder is heated, it turns black and a gas is produced. in irreversible changes, new materials are always formed. given that a gas is produced, which is a new material, heating green powder is an irreversible change.
By heating green copper carbonate so that it changes to black copper oxide will this be a chamical or physical change?
The change from green copper carbonate to black copper oxide is a chemical change because it involves a chemical reaction where the chemical composition of the substance is altered. The color change indicates a new substance has formed, making it a chemical change.
When you mix green and black what does it make?
Mixing green and black will create a darker shade of green.
Why is it necessary to heat the malachite green?
Heating malachite green helps break down the compound into its active form, which is more effective in treating certain types of infections and parasites. Additionally, heating can help improve the solubility of the compound for better absorption in the target organisms.
Why green color of feso4 changes when heated?
The green color of FeSO4 changes when heated because it undergoes a dehydration reaction. Heating causes the water molecules in the compound to be removed, leading to a change in the oxidation state of iron from +2 to +3, resulting in a color change.
Which salt changes from green to black on heating?
Copper(II) sulfate changes from green to black when heated due to the decomposition of copper(II) ions to copper(I) ions, which are black in color.
How many eyes lenses does a grasshopper have?
compound eyes and simple eyes
If a light green powder is heated in a test tube A gas is given off while the solid becomes black In which classification of matter does the green powder belong?
The green powder belongs to the category of chemical substances. This is because it undergoes a chemical change when heated, giving off a gas and forming a black solid, indicating a chemical reaction has occurred.
What are Examples of compound leaves?
Most of the Leguminous plants have compound leaves- such as pea, gram, pegion pea, green gram, black gram etc.
What colors can a anole change to?
An anole can turn green, gray, black, and brown.
