Answer:
C)Grassland biomes contain mostly grasses.
Explanation:
The main differences between a savanna biome and a grassland is that grasslands biomes contain mostly grasses.
Savanna are made up of both grasses and shrubs.
- Savanna are a mix of grasslands with some scattered trees in the area.
- Grasslands are open grass fields.
- They do not contain much trees as such.
- The savanna and grasslands are renowned for their fauna diversity of beasts.
The stirring breaks it up faster, the amount of water doesn’t effect it, it just gives it space to spread/dissolve - I think.
Answer:
(a) Wavelength = 4.85 x 10^-12 m
(b) Maximum uncertainty = 5.27*10^-25 kgm/s
Explanation:
(a) Calculating the wavelength using the formula;
λ= h/p
but p = mv
Where;
m = mass of electron = 9.1 x 10-31
h = 6.625 x 10^-34
= h/mv
= 6.625 x 10^-34 / (9.1 x 10^-31 x 1.5×10^8)
= 4.85 x 10^-12 m
so, the wavelength is short enough to reveal molecular details at the atomic level.
(b) Find attached of part b
Answer:
Two (2) electron pairs
Explanation:
The sharing of electron pairs by atoms forms a type of bond called COVALENT bond. Atoms that form covalent bonding (share electrons) do so in order to fill their outermost electron shells, hence, gain chemical stability.
However, when two atoms like carbon share TWO PAIRS of electrons with each other, a DOUBLE BOND is formed. An example is the double bond formed in Ethylene (2HC=CH2). A total of four valence electrons (a pair from each carbon) are shared between the two carbon atoms.
Answer:
43.96
Explanation:
Graham's law was applied and the rates of effusion of nitrogen and the unknown gas were compared as shown in the image. The unknown gas is heavier than hydrigen hence it effuses slower than hydrogen as anticipated by Graham's law.
