Answer: for the first question, Hypochloride is being released from your bleach to oxidize your fabric. As you know oxidation simply mean addition of oxygen, so when hypochloride (ClO-) comes in contact with fabric oxygen is added and some organic bonds are broken and the dirt is washed out.
For the second question. The melting and boiling point of pure substance is sharp. Like water has 100oC boiling point and OoC melting point. So anything from that means it has impurities in it. Just like if you make tea, you have introduce something else into the water, if you should try boiling your tea, you'll find out that the boiling point is not going to 100oC anymore. Every other liquid have their boiling point and melting point. When you know them, you'll be able to determine the purity.
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
<h3>Similarity between spiderweb and a Kevlar jacket</h3>
A spider web refers to the tiny web-like structures that is seen around places where spiders breed. On the other hand the Kevlar jacket is known for its high tensile strength.
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
Learn more about molecule: brainly.com/question/19922822
The Chemical fomulla for Zinc Phosphate
Zn3(PO4)2
1 mol ------- 6,02·10²³
X ------------ 3,98·10²³
X = 3,98·10²³/<span>6,02·10²³
<u>X= 0,6611</u> moles of oxygen
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Takr 0.136 × 1.66×10^-27×(3.0×10^8)^2
answer is 2.03×10^-11 J