Answer:
The position of the moon during its orbit around Earth.
Explanation:
When should lab participants look at the safety data sheet (sds) of a substance--- before using the substance
Which of the following will be found on a safety data sheet?
The SDS includes information such as the properties of each chemical; the physical, health, and environmental health hazards; protective measures; and safety precautions for handling, storing, and transporting the chemical.
Where can safety data sheets be found?
To obtain SDS, get them from the manufacturer. They may be sent with the chemical order (paper copy or e-mail attachment). Otherwise, go to the manufacturer's website and download it or request a copy
What is the purpose of a safety data sheet?
A Safety Data Sheet (formerly called Material Safety Data Sheet) is a detailed informational document prepared by the manufacturer or importer of a hazardous chemical. It describes the physical and chemical properties of the product
Learn more about safety data sheet :
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84280/3011 or 27.9907g Fe
Explanation:
(3.01 * 10^23)/1 x 1 mol Fe/(6.022 * 10^23) x 56g Fe/ 1 mol Fe = 27.9907 g Fe
Answer : The value of 
is, -103.4 kJ
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 main reaction is,
The intermediate balanced chemical reaction will be,
(1) 
(2) 
Now reversing and multiplying by 2 of reaction 1 and 2 then adding all the equations, we get :
(1) 
(2) 
The expression for will be,
Therefore, the value of is, -103.4 kJ
Answer:
225,563,910 m/s
Explanation:
speed of light in water = speed of light in the air/refractive index
speed of light in water = 3.00 x 10^8 m/s/1.33
speed of light in water = 225,563,910 m/s
