On the way home, Dora likes to eat cookies. One daytime, just as she reached into her backpack, swiper jumped into her path and grabbed her bag. It stole half of her cookies plus two more. A bit shaken, Dora continued home. Before she had a casual to eat a cookie, Swiper jumped into her path and stole half of her cookies plus two more. Upset, Dora continued. However, before she had a chance to eat even a piece of cookie, swiper jumped out and did the same thing- took half her cookies plus two more. Now there were only two pieces of cookies left in Dora's backpack. She sat down and began to sob. Then Swiper reappeared, feeling some sense of remorse, and told her it would return all her cookies to her if she told them how many she had altogether when she startled. How many pieces of cookies had been on Dora's backpack?
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
On the way home, Dora likes to eat cookies. One daytime, just as she reached into her backpack, swiper jumped into her path and grabbed her bag. It stole half of her cookies plus two more. A bit shaken, Dora continued home. Before she had a casual to eat a cookie, Swiper jumped into her path and stole half of her cookies plus two more. Upset, Dora continued. However, before she had a chance to eat even a piece of cookie, swiper jumped out and did the same thing- took half her cookies plus two more. Now there were only two pieces of cookies left in Dora's backpack. She sat down and began to sob. Then Swiper reappeared, feeling some sense of remorse, and told her it would return all her cookies to her if she told them how many she had altogether when she startled. How many pieces of cookies had been on Dora's backpack?
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