The molecular polarity of the sun is the dipoole separation of electric charge leading to a molecule in the sun.
<h3>What is molecular polarity?</h3>
Molecular polarity simply refers to those regions of molecules containing or possessing positive and negative charge
So therefore, the molecular polarity of the sun is the separation of electric charge leading to a molecule in the sun.
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Answer:
d. Epoxy
Explanation:
Adhesion or adhesive properties of a substance is the property that allows bonding of dissimilar materials if necessary. Adhesives may have high cohesive strength or a low cohesive strength.
PVC "glue" is usually a solvent for plastic components and these are different type of PVC glues. They function well on plastics.
HDPE - is known as High-density polyethylene or polyethylene high-density is a thermoplastic polymer in short it is what we know as plastic bags or nylon produced from the monomer ethylene. HDPE is not an adhesive
UHMWPE - is known as Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE). UHMWPE is not an adhesive.
An epoxy adhesive is a copolymer adhesive formed by mixing together a resin and a hardener. There are some special epoxies however don't require a hardener, but are activated by heat instead. Others epoxies hardening strength may degrade in under exposure to ultraviolet light or high heat. Adhesives such as epoxies have many different uses. Epoxy may be used on metal, glass, plastic, rubber, fiberglass and fiberglass-reinforced plastic (FRP).
Bakelite or polyoxybenzylmethylenglycolanhydride isn't an adhesive and it was the first plastic made from synthetic components.
Epoxy however has very strong adhesive properties because of the varieties of substances it can bring to together.
A garduated cylander, in order to find the amount of water displaced you see how much the water has risen
Answer:
% Mg = 16.2 % ≈ 16 %
%N = 18.9 % ≈ 19 %
% O = 64.9 % ≈ 65 %
Explanation:
Step 1: Data given
Molar mass Mg(NO3)2 = 148 g/mol
Molar mass Mg = 24 g/mol
Molar mass N = 14 g/mol
Molar mass O = 16 g/mol
Step 2: Calculate the percent composition
% Mg = (24/148) *100%
% Mg = 16.2 % ≈ 16 %
% N = (2*14 / 148) * 100%
%N = 18.9 % ≈ 19 %
% O = (6*16/148) * 100%
% O = 64.9 % ≈ 65 %
Answer:
Multiply the number of moles of butane by its molar mass, 58.12g/mol, to produce the mass of butane. Mass of butane = 18.8g.
Explanation:
Part B:
The mass of water produced when 4.86 g of butane(C4H10) react with excess oxygen is calculated as below
calculate the moles of C4H10 used = mass/molar mass
moles = 4.86g/58 g/mol =0.0838 moles
write a balanced equation for reaction
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
by use of mole ratio between C4H10 to H2O which is 2:10 the moles of
H20= 0.0838 x10/2 = 0.419 moles of H2O
mass = moles x molar mass
=0.419 molx 18 g/mol = 7.542 grams of water is formed
