Answer:
92 is that atomic number and 238.03 is the atomic mass number
Explanation:
The structure of the atom is given as:
⁹²₂₃₈.₀₃U
The number 92 is the atomic number of the atom.
The atomic number is the number of protons within an atom. This number defines the nature and type of atom that we have.
238.03 is the atomic mass number;
The is the number of protons and neutrons within an atom. It is typically the mass of nucleus.
Answer:
B.) Adhesion
Explanation:
A.) is incorrect. Viscosity is a measure of internal friction that affects the fluidity of a liquid.
B.) is correct. Adhesion is the ability of water to stick to other substances (which are not water).
C.) is incorrect. Surface tension is the tension created by the bonds of the surface particles.
D.) is incorrect. Density is a ratio that compares mass to volume.
<span>Ocean current that is moving toward the equator is cold. The windblown surface currents distribute heat all over the globe through moving the water which is warm away from the equator and the cool water will replace which is from the north and south poles. An example of this is the Gulf Stream which moves warm water towards the Great Britain and Europe.</span>
First you find the RFM (Relative Formula Mass) of Fe2O3
Fe2 = 56 x 2
= 112
O3 = 16 x 3
= 48
112 + 48 = 160
Moles = mass/RFM
= 79.2/160
=0.495
Then you rearrange the formula
Mass= moles x RFM
= 0.495 x 112
= 55.44 g
(To find mass of Iron have to use RFM of total iron in the substance example Fe2 ^^)
Explanation:
The sulfonation of the naphthalene yield 2 products under different conditions:
<u>When the reaction is carried at 80 °C, 1-naphthalenesulfonic acid is the major product because it is kinetically favoured product as arenium ion formed in the transition state corresponding to 1-naphthalenesulfonic acid is more stable due to better resonance stabilization.
</u>
<u>When the reaction is carried at 160 °C, 2-naphthalenesulfonic acid is the major product as it is more stable than 1-naphthalenesulfonic acid because of steric interaction of the sulfonic acid group in 1-position and the hydrogen in 8-position.</u>
The products are shown in image below.
