The answer is GRAINS
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Answer:
The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.
Answer:the answer is B.) H2O3(aq) and Mg (OH)2(s)
Explanation:
Answer:
Number of produced moles of carbondioxide is 0.113 mol.
Explanation:
Excess of sulphuric acid is present.And the sodium carbonate is completely consumed.
Molar mass of sodium carbonate = 105.99g/mol
Given mass of sodium carbonate =12 g/mol


one mole of sodium carbonate produce one mole of carbondioxide.
0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.


Therefore, 0.113 mol of carbondioxide produced in flask 7.
A few examples of changes in chemical change are, a change in the color of the chemical, change in the energy or temperature, and lastly change of odor.
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