Concept explainers
(a)
Interpretation:
The balanced chemical equations for the 4
Concept introduction:
A chemical equation is said to be balanced if there are equal number of atoms of same elements present on both sides of the reaction arrow.
(b)
Interpretation:
The mass of lime in kg needed for the removal of phosphorus from 104 holding tanks containing contaminated water needs to be determined.
Concept introduction:
According to
Here, m is mass and M is molar mass.
The density of a substance is defined as mass per unit volume. It is mathematically represented as follows:
Here, m is mass and V is volume of the substance.
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General Chemistry: Principles and Modern Applications (11th Edition)
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- The following reaction represents the process known as photosynthesis: 6CO₂(g) + 6H₂O(l) + sunlight → C₆H₁₂O₆(aq) + 6O₂(g). Is photosynthesis a redox reaction? Justify your answer using redox principles.arrow_forwardWrite the net equation for precipitation of AgI when aqueous solutions of AgNO3 and Nal are mixed. Be sure to include state specifications .arrow_forward(a) In 20 or less of yourown words define the term “leachate”and describe how it forms. (b) Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4 that should be allowed into the landfill was determined to be 0.1 kg. This was calculated using a standard concentration of Cd in mg/L where the volume of the leachate pond was used as 500 000L. (i) Provide the name of the CdSO4 compound. State the oxidation number of Cd in this compound (ii) You need to ensure that the concentration used to determine the mass of Cd allowed in the landfill, meets the current regulatory standard. Assuming that previous calculations determined that all of the CdSO4 would be deposited in the leachate pond, what standard concentration of Cd in mg/L was used to determine the maximum mass of allowable CdSO4?arrow_forward
- Zinc metal reacts with nitric acid, HNO, to produce a number of products, depending on how dilute the acid solution is. In a concentrated salution, zinc reduces nitrate ion to ammonium ion; zinc is oxidized to zinc ion, Zn Write the net ionic equation for this reaction.arrow_forwardbalance the following chemical equation (if necessary):arrow_forwardWrite the balanced NET ionic equation for the reaction when aqueous KBr and aqueous AGC2H3O2 are mixed in solution to form aqueous KC:H3O2 and solid AgBr.arrow_forward
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