Answer:
A. Solution, Colloid, Suspension
Hope i could help
Answer: it think it would be last one. the mouth to the stomach is the answer.
Explanation:
Bonds formed between atoms can be classified as ionic and covalent
Ionic bonds are formed between atoms that have a high difference in the electronegativity values.
In contrast, bonds formed between atoms that have a difference in electronegativity lower than the ionic counterparts are polar covalent bonds. If the atoms have very similar electronegativities, they form non-polar covalent bonds.
In H2S, the S atom is bonded to 2 H atoms. The electronegativity of H = 2.2 and S= 2.56. Since the difference is not high the bond formed will be covalent (polar covalent).
Answer:
a) 1,332 kJ are transferred
b) the temperature of the tree decreases 1.99 ºC
Explanation:
a) When a phase change occurs, the temperature remains constant for a pure substance, so, in this case, the heat transferred is:
Q = m*L, where m is the mass, and L is the latent heat, which for solidification of water is -333 kJ/kg:
Q = 4.00*(-333)
Q = -1332 kJ
So, 1,332 kJ are transferred.
b) If the amount of heat is transferred for the tree, and it has no phase change, it will receive a sensitive heat, which is:
Q = m*c*ΔT, where m is the mass, c is the specific heat, and ΔT the temperature change:
-1332 = 200*3.35*ΔT
670ΔT = -1332
ΔT = - 1.99 ºC
So the temperature of the tree decreases 1.99 ºC.