Zinc (Zn) always has a +2 charge. It is one of the exceptions.
I would say you should use or test it once a week to ensure it is working properly in an active laboratory since it is a workplace with significant chemical hazards so it would give peace of mind to know on a quite regular basis that it can be relied on in case of an emergency like an eye flush for example.
Answer:
The hot water was better for removing the oil.
Explanation:
You can see that because the mass went down more with the hot water. So, that means that more oil was taken out of the feather with hot water.
Malleability described the property of physical deformation under some compressive stress; a malleable material could, for example, be hammered into thin sheets. Malleability is generally a property of metallic elements: The atoms of elemental metals in the solid state are held together by a sea of indistinguishable, delocalized electrons. This also partially accounts for the generally high electrical and thermal conductivity of metals.
In any case, only one of the elements listed here is a metal, and that’s copper. Moreover, the other elements (hydrogen, neon, and nitrogen) are gases under standard conditions, and so their malleability wouldn’t even be a sensible consideration.
The shipping container have a density of 27.77 kg/m³.
Explanation:
The formula for density is:
density = mass / volume
volume of the container = 9 m × 4 m × 3 m
volume of the container = 108 m³
density of the container = 3000 kg / 108 m³
density of the container = 27.77 kg/m³
Learn more about:
density
brainly.com/question/952755
brainly.com/question/6838128
#learnwithBrainly
