Question

[guys can somebody help] if you place pellets of sodium hydrogen and anhydrous copper ii sulfate in the open for two hours what observations will be made

Answer 1

Answer:

Explanation:mark my answer as branliest !!!!

• Homogeneous mixture of two or more substances

• Heterogeneous mixture of two or more substances

• Homogeneous mixture of liquid and solid components only
• Homogeneous mixture consisting of water as one of the components

• A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. 
• A solution consists of a solute and a solvent. 
• The solute is the substance that is dissolved in the solvent.

For example, in a saline solution, salt is the solute dissolved in water as the solvent.

Answer 2

Answer:

Explanation:

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Copper(II) sulfate test for water

Copper sulfate experimentCopper sulfate experiment

Pure copper(II) sulfate is white. It is also known as anhydrous copper(II) sulfate because it has no water in it.

When water is present in a sample of copper(II) sulfate it turns blue. It is still a dry solid, because the individual water molecules are trapped within the ionic lattice surrounding the copper(II) ions. Solutions of copper(II) sulfate are also blue.

This colour change can be used to detect the presence of water (or water vapour).

anhydrous~copper(II)~sulfate + water \rightleftharpoons hydrated~copper(II)~sulfate

CuSO_{4}(s)~(white) + 5H_{2}O(l) \rightleftharpoons CuSO_{4}.5H_{2}O(s)~(blue)

Cobalt(II) chloride test for water

Water can also be detected using blue anhydrous cobalt(II) chloride. This turns pink in the presence of water.