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Which of the following gases will refresh the burning stick during a confirmation test?
The gas released has a strong odor and turns moist red litmus paper blue. What additional observations can confirm the presence of this gas?
Among the following carbonate salts, which will not decompose when heated strongly?
When a type of nitrate salt is heated, a brown acid gas is released. What is the gas?
Heating sodium nitrate (NaNO₃) produces a solid residue and only one type of gas. What are the results?
A residual solid that is yellow when hot and white when cold is formed after strong heating of a salt. What cations are likely to be present in the salt?
A student is heating lead(II) nitrate. Which of the following is a correct observation for the heating residue?
What is the general equation for the decomposition of most metal carbonate salts (except Group 1)?
When heating the copper(II) carbonate salt, what color remains in the test tube after cooling?
Nitrogen dioxide gas can be identified by its chemical properties. Which of the following is the most accurate chemical test?