It’s a chemical Rxn …
copper sulfate + sodium hydroxide → copper hydroxide + sodium sulfate
CuSO4+ 2NaOH → Cu(OH)2+ Na2SO4
Answer:
you will never reach the truth.
Explanation:
Beowulf’s motivations for helping Hrothgar appear to be threefold: (1) The Danes are in need of help against a monstrous horror and Beowulf believes he can set things right for them; (2) Hrothgar had provided shelter to Beowulf’s father, Ecgtheow, as well as paid werguild in a feud that Ecgtheow had precipitated; and (3) Fighting Grendel will bring Beowulf renown and treasure. Modern audiences may question whether motivation (
Answer:
The energy conversion when a solar cell is used to light a street lamp is Option B: solar energy - electric energy - light and heat energy
Explanation:
From the 'Law of conservation' of energy, energy cannot be 'created' nor it can be destroyed. But we can convert energy from 'one form' to 'other'. The devices that transform energy from one form to another are called transducers.
'Solar cells' also known as the photo voltaic cells. These devices transform light energy into electrical energy directly. When these solar cells are used in a street lamp, it will convert this electrical energy into heat and light energy.
