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Implantation is the process where a fertilized egg, now called a blastocyst, attaches to and burrows into the uterine lining, marking the beginning of pregnancy. Implantation is the crucial step where the developing embryo embeds itself into the uterus, allowing it to receive nutrients and continue developing.

A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding. REF:https://en.wikipedia.org/wiki/Population

F=ma 2000=800 x a a = \(\frac{2000}{800}\) → 2.5 V\(^2\)=u\(^2\)+2as 400=2 \times 2.5 \times S S =400 \div 5 → 80 : 80 - 50 = 30 The car will stop 30m after hitting the dog

A graph of l against T\(^2\) will be linear With T vs \( \sqrt{I} \) and log T vs log L The value of g can be obtained from the slope of each graph.

Since the gas molecules expanded, there's an increase in Separation

A vapor saturated is said to be in a dynamic equilibrium with its own liquid

Allotropes are two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.

Compressed air is a gas, or a combination of gases, that has been put under greater pressure than the air in the general environment. When you pressurize a gas by compressing it into a container, you're putting all those molecules into a smaller volume of space and you're adding potential energy by the compression. Gay Lussac's Law - states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature.

The color of nitrogen dioxide is reddish brown. This nitrogen dioxide when comes in contact with acid appears yellow in color. This means the color of nitric acid can be removed by bubbling air through acid.

An atom that has equal number of protons and electrons is called a neutral atom. With 82 electrons, the atomic number is also 82

Oxidation is the loss of electrons or an increase in the oxidation state of a chemical or atoms within it.

The oxidation of hydrogen by oxygen gives water and a certain amount of heat of formation.

Butane is an alkane with four carbon atoms so molecular formula is C4H10. It has two isomers; n-butane and isobutane.

\(x \propto \frac{1}{y}\) \(x = \frac{k}{y}\) \(y \propto t^{2}\) \(y = ct^{2}\) k and c are constants. \(x = \frac{k}{ct^{2}}\) Let \(\frac{k}{c} = d\) (a constant) \(x = \frac{d}{t^{2}}\) \(1 = \frac{d}{3^{2}} \implies d = 9\) \(\therefore x = \frac{9}{t^{2}}\) \(x = 9 \div (\frac{1}{3})^{2} \) = \( 9 \div \frac{1}{9} = 9 \times 9 = 81\)

\(\sin x = \cos x\) \(\implies x = 45^\circ\) In radians, \(x = \frac{\pi}{4}\).