Common chemicals and hazardous materials that can be found in the kitchen include fuel gases, pesticides, sources of radon gas, and cleaning agents.
The kitchen is the main area of the house which is at the risk of having several accidents.
The carbon monoxide gas that is released from kitchen materials such as a gas stoves can be extremely harmful. A closed kitchen with no ventilation can cause carbon monoxide to level up, thus creating a hazardous atmosphere.
Certain gas appliances and furnaces in the kitchen are a source of radon gas. Radon compounds are hazardous as they can cause lung cancer.
Pesticides are poisonous chemicals that we often use in the kitchen to kill insects. Pesticides can be toxic to human health also.
Cleaning agents are present in almost every kitchen because these chemicals help in keeping the kitchen counters, stove, and other appliances clean. The cleaning agents have strong concentrations of ammonia and chlorine which are harmful to the skin.
Other hazardous materials in the kitchen environment include materials that can easily cause fire such as certain electrical appliances.
To learn more about hazardous materials, click here:
brainly.com/question/27318175
#SPJ4
Answer: Velocity is the speed of an object plus its direction. Speed is called a scalar quantity and velocity is a vector quantity.
Explanation: hope this helps :)
Answer:
120°
Explanation:
Valence electrons of boron = 2
Valence electrons of chlorine = 7
The total number of the valence electrons = 3 + 3(7) = 24
The Lewis structure is drawn in such a way that the octet of each atom in the molecule is complete. So,
The Lewis structure is:
There is no lone pair involved, so, It is of type AB₃.
According to the theory, the atoms will form a geometry in such a way that there is minimum repulsion and maximum stability.
So, it is of triangular shape, with bond angle , 120 ° .
Answer : The correct option is, (A) -x kJ/mol
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
The given chemical reaction is,
Now we have to determine the value of 
for the following reaction i.e,
According to the Hess’s law, if we reverse the reaction then the sign of change.
So, the value 
for the reaction will be:
Hence, the value of for the reaction is -x kJ/mole.
