pOH scale is used to determine the basicity of a solution
pH scale is used to determine the acidity of a solution
pH and pOH are related in the following formula
pH + pOH = 14
once pOH is known we can calculate pH
pOH = 8.7
pH = 14 - 8.7
pH = 5.3
pH of the solution is 5.3
when pH is less than 7 the solution is said to be acidic
when pH is equal to 7 then solution is neutral
when pH is more than 7 then solution is basic
the pH of the solution here is 5.3 which is less than 7, therefore solution is acidic
acidic solution with pH of 5.3
b. decomposition
c. single replacement
d. double replacement.
A chemical reaction is defined as the process in which two more reactants are converted to form one or more different product.
The chemical reaction in which two more reactants combine to form one product is a synthesis reaction.
Synthesis reactions are defined as the reaction in which two different atoms or molecules react to form a different compound. Synthesis reactions are exothermic reactions, such that the reactions release energy in the form of heat and light.
One of the most common examples of a synthesis reaction is the formation of sodium chloride. It can be expressed as:
Na (Sodium) + Cl (Chlorine) NaCl (Sodium Chloride)
Thus, the synthesis reaction will result in one different compound or product.
The correct answer is Option A.
To know more about synthesis reaction, refer to the following link:
Answer:3.2
Mass:32
Molecular weight: 10
Moles: 3.2
2H2O2 → 2H2O + O2
Carbon disulfide is formed by a direct reaction of carbon and sulfur. At room temperature, CS2 is a colorless liquid with an offensive odor. Carbon disulfide vapors are flammable.
59 Identify one physical property and one chemical property of CS2. [1]
Answer: Physical property of is state of matter (liquid) and it is a chemical compound.
Explanation:
Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.
Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
Carbon disulfide is the compound which is formed by the chemical combination of carbon and sulfur atoms. The equation for this follows:
The chemical property of carbon disulfide is different from that of carbon and sulfur. Thus, this is a chemical compound.
It is given, that this compound is a colorless liquid, which means that the state of this compound is liquid state.
Hence, physical property of is state of matter (liquid) and it is a chemical compound.
The physical property of carbon disulfide is that at room temperature, CS2 is a colorless liquid with an offensive odor. The chemical property of carbon disulfide is that it is formed by a direct reaction of carbon and sulfur.