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Did you know? All the hydrogen atoms in your body are about 13.5 billion years old as they were produced at the birth of the Universe. The first chemical element was hydrogen at zero in one place in the Universe. Others follow suit, blending hydrogen into helium, then combining it with carbon, and so on. Hydrogen makes up about 73 percent of the visible atmosphere. Helium makes up about a quarter of its weight, and the other weighs about 2%. Hydrogen and helium together make up less than 1% of the Earth's weight. Now, if I ask you, where did these atoms come from in your body? Does it fascinate you? Are you curious to know more about such facts? Join our online tuition for chemistry and enjoy the magic of learning with fun. Now learn the complex aspects of chemistry simplistically. As SSSi Online Tutoring Services follows the activity-based learning approach, it develops interest among the students.
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The questions mentioned above are the basic chemistry questions to discover how your sense works in real-life chemistry questions. A cook two thousand years ago combined three common kitchen ingredients: potassium nitrate (a food preservative), sulphur, and charcoal. They explode with a big explosion after being mixed and heated. It's essentially gunpowder.
When this combination is applied to a cane, pressure builds up, resulting in a larger explosion. Potassium nitrate was originally utilized. The white appearance is due to potassium cations. Various hues are obtained by using different salts with different metals as cations. Strontium salts, for example, produce red hues. Iron compounds produce Gold-coloured pyrotechnics.
The answer to the second question is– Br2 (fuming orange liquid) and mercury are the only pure elemental compounds (compounds made up of only one element's atoms) that are liquid at an ambient temperature (a metal).
