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What is the equation for the mixture of chalk and HCl?
The reaction between chalk (calcium carbonate, CaCO3) and hydrochloric acid (HCl) can be represented by the chemical equation: CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Is eggshell a mixture or a pure substance?
eggshell is a kind of compound CaCO3 (calcium carbonate)
What dilute acid is added to a sample of limestone the rock fizzes what chemical does the rock contain?
If the limestone rock fizzes when dilute acid is added, it indicates the presence of calcium carbonate in the rock. When calcium carbonate reacts with acid, it produces carbon dioxide gas, which causes the fizzing.
Is calcim carbonate a element compound or mixture?
Calcium Carbonate is a compound and an element. However, it is not a mixture. If it is a compound or a element, then it can not be a mixture
What is the grams of substance in 4.5 moles CaCO3?
Molar mass of CaCO3 = 66.1221g CaCO3/mole CaCO3. This means that 1 mole CaCO3 = 66.1221g CaCO3. To find the mass of 4.5 mole CaCO3, complete the following calculation: 4.5g CaCO3 X 1mol CaCO3/66.1221g CaCO3 = 0.068 mole CaCO3.
How can limestone testing as caco3?
To test limestone for its calcium carbonate (CaCO3) content, you can use an acid test. By adding a few drops of dilute hydrochloric acid to a sample of limestone, a reaction will occur if it contains calcium carbonate, producing bubbles of carbon dioxide gas. The intensity of the reaction can indicate the purity of the limestone.
What is the test for Ca CO3?
The test for calcium carbonate (CaCO3) typically involves adding a dilute acid, such as hydrochloric acid (HCl), to the sample. If CaCO3 is present, it will react with the acid to produce carbon dioxide gas, which can be observed as effervescence or bubbling. The reaction can be represented by the equation: CaCO3 + 2HCl → CaCl2 + H2O + CO2↑. This effervescence confirms the presence of calcium carbonate.
Why does CaCo3 otherwise called marble chips react with vinegar?
CaCO3 (calcium carbonate) is a mild base, and as such reacts to neutralise acids. Vinegar is a dilute solution of acetic acid (AcH). CaCO3 + 2AcH --> H2O + CO2 + CaAc
Can you separate chemicaly MgCO3 from CaCO3?
I have the same task. Maybe this one would work: If amount of CaCO3 is known I would try to add stechiometric amount of any diluted acid (e.g. HCl), which would form Ca water soluble salt to solution of MgCO3/CaCO3 in water (note, that these salts are not soluble in water, therefore that will colloid solution). The reaction would be CaCO3+2HCl=CaCl2+H2O+CO2. Calcium is more reactive metal than Mg, therefore, CaCO3 would react first if you add acid. After all CaCO3 is consumed, just filter of MgCO3
A student performs the HCl tests on the three solid samples as described in step 5 of part b and gets the same result for the solid CaCO3 sample and the mixture which of the following statements is?
If the student obtains the same result for both the solid CaCO3 sample and the mixture during the HCl test, it suggests that the mixture contains a significant amount of calcium carbonate or a similar compound that reacts with hydrochloric acid to produce carbon dioxide gas. This indicates that the mixture may not be purely composed of other substances or that the presence of CaCO3 is masking the characteristics of the other components. Therefore, the statement implying that the mixture has similar reactivity to CaCO3 is likely true.
What is the equation for the mixture of chalk and HCl?
The reaction between chalk (calcium carbonate, CaCO3) and hydrochloric acid (HCl) can be represented by the chemical equation: CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Is eggshell a mixture or a pure substance?
eggshell is a kind of compound CaCO3 (calcium carbonate)
4 a student performs the hcl tests on the three solid samples as described in step 5 of part b and gets the same result for the solid caco3 sample and the mixture which of the following statementsThe?
If the student obtains the same HCl test results for both the solid calcium carbonate (CaCO3) sample and the mixture, it indicates that the mixture contains calcium carbonate as one of its components. This suggests that the reaction of HCl with calcium carbonate is producing carbon dioxide gas in both cases, resulting in similar observable reactions. Thus, the mixture likely includes CaCO3 or a compound that reacts similarly to HCl.
What is the purpose of adding Pb(OAc)2 and CaCO3 in sugar determination?
Pb(OAc)2 (lead acetate) and CaCO3 (calcium carbonate) are added during sugar determination to facilitate the precipitation of interfering substances and to clarify the solution. Pb(OAc)2 reacts with sulfur compounds and other impurities, forming insoluble complexes that can be removed. CaCO3 serves to neutralize any acidity, helping to stabilize the pH of the solution, which is crucial for accurate measurement of sugars. Together, they enhance the reliability and accuracy of the sugar determination process.
What is the word equation for CaCo2?
No such substance as 'CaCo2'. Do you mean calcium carbonate, in which case the formula is 'CaCO3'? or do you mean an alloy(mixture) of 1 part calcium(Ca) to 2 parts cobalt(Co)?
What dilute acid is added to a sample of limestone the rock fizzes what chemical does the rock contain?
If the limestone rock fizzes when dilute acid is added, it indicates the presence of calcium carbonate in the rock. When calcium carbonate reacts with acid, it produces carbon dioxide gas, which causes the fizzing.
Is calcim carbonate a element compound or mixture?
Calcium Carbonate is a compound and an element. However, it is not a mixture. If it is a compound or a element, then it can not be a mixture
