Prokaryotes are organisms whose cells lack a nucleus and other organelles
Answer:
Pi = 0.25[P(TTL)/n(TTL)]
Explanation:
Let Total Pressure = P(TTL) and Total moles =n(TTL) => n(i)/n(TTL) = P(i)/P(TTL)
Given n(i) = 0.25 => Pi = 0.25[P(TTL)/n(TTL)]
Answer:
Explanation: Nickel is element number 28 on the period table with a mass number 58 or 60, it exist in two forms and the phenomenon is known as isotopy
Definition of Isotopy is simply a phenomenon whereby elements exist in various forms that have the exact same chemical properties but different atomic mass.
58-Ni has atomic number 28 because that's the number o the element on the periodic table. Proton number is the same as atomic number and same as electron number for a neutral element or element without charge.
Mass number = Proton number (P) + Neutron number (N)
58 = 28 + N
N= 58-28
N= 30
58-Ni has 28 has the atomic number, proton number and electron number because it is a neutral atom but the neutron is 30 as shown in the calculation above.
60-NI+2 has a contrasting figure because the element has a charge of +2
Mass number= Proton + Neutron
60 = 28 + N
N= 60 - 28
N= 32
Electron = Proton - Charge
28 - (+2)
28 - 2
Electron = 26
The number of electron in 60-Ni +2 differs from 58-Ni because of the number of charge
Electron number differs from proton number in any element with a charge.
Answer:
Water droplets form on plants, allowing the plants to soak up the water over time rather than all at once.
Explanation:
Cohesion and Adhesion are the properties of water which affect the living and non-living on earth.
Cohesion means water is attracted to water.
Adhesion means water is attracted to other living beings.
Water is very cohesive in that it "sticks" to itself. Cohesion is what allows a water droplet to form, for example. When water molecules surround one another, they settle toward a low energy state. For water molecules, they are most stable when they form a ball surrounded by other water molecules. As the molecules "pull" together, the surface tension acts like a casing for the group of water molecules. If it weren't for cohesion, water molecules would behave very differently and we would not expect to see water droplets.
Cohesive and adhesive properties of water impact living things in many ways:
Water droplets form on plants, allowing the plants to soak up the water over time rather than all at once.
Water striders (insects) glide across water surfaces owing to the cohesive property of water.
It is 4.18 joules pr gram
Q=435* 4.18* (100-25)
Q=136.4kj
