Answer:
Subatomic particles making up an atom
Explanation:
Atom is the smallest unit of any matter
An atom consists of three subatomic particles - Protons, Neutrons, Electrons. Major atomic mass is in the nucleus ie a tiny deep area at the centre. Nucleus consists nucleons, which includes protons (positively charge) & neurons (neutrally charged). Negatively charged electrons are outside the central nucleus.
Answer:
The correct option is : c) 0.0431 L
Explanation:
Volume is defined as the amount of space occupied by a substance when enclosed in a container. The substance can be present in the solid, liquid, gas, or plasma state. The SI unit of volume is cubic metre (m³).
Another unit of volume included by the metric system is litre (L), where one litre is equal to 1000 cm³.
1 L = 1000 cm³
or, 1 cm³ = (1 ÷ 1000) L = 0.001 L
Therefore,
43.1 cm³ = (43.1 ÷ 1000) L =<u> 0.0431 L </u>
Depends on the soil but it will usually become muddy.
Answer:pKa between 6 and 8
b. highly water soluble
c. minimally permeable to biological membranes
d. minimal effects of salt concentration
Explanation:
Since most biological reactions occur at near neutral pH of 6-8, good buffers should have their pKa around this region. A good buffer must also be water soluble and not easily permeable to biological membranes to avoid to avoid accumulation of the buffer compound in cells. The buffer should also not be highly ionic to prevent issues due to salt effects.