Answer:
2334.1136 Joules
Explanation:
Q= 65.6 g (4.186)(8.5)
If it's suppose to be in kilograms, the answer will be 2.3341136 Joules.
Answer:
Attached Lewis structure
Explanation:
To draw the Lewis structure, we need to consider the octet rule: atoms will gain lose or share electrons to complete their valence shell with 8 electrons. Hydrogen is an exception because it is completed with 2 electrons (duet). N and H are nonmetals so they form covalent bonds, that is, they share electrons.
- N has 5 valence electrons, so it has to share 3 pairs of electrons.
- Each H has 1 valence electron, so it has to share 1 pair of electrons.
The Lewis structure is attached and there are no resonance structures since there are no pi electrons.
Answer:
Volume of the cube is 2*2*2 = 8cm^3.
Divide the weight (40g) over the volume (8cm^3).
Density is 5g/cm^3. Definitely not gold.
Explanation:
Answer:
Energy is not created or destroyed but merely changes forms, going from potential to kinetic to thermal energy. This version of the conservation-of-energy principle, expressed in its most general form, is the first law of thermodynamics.
Explanation: