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Katyanochek1 [597]
3 years ago
14

Which of the following is a chemical change?I

Chemistry
1 answer:
Sergeu [11.5K]3 years ago
3 0

Answer:

combustion is a chemical change

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One of the great upcoming sports in the Olympics is the sport of curling. Write a brief essay on the uses of momentum collisions
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The Olympic sport of curling is one that is practically designed to show Physics in motion. Curling is a sport in which two teams alternate sliding smoothed stone pucks down an ice rink court with the intent to seat their stone closest to the center of the target (called the house). Each team has eight stones, meaning that the team that goes second has the (could be) massive advantage of sending the last stone.  
The mass of the stone is important in that the more massive a stone (m) and the speed at which it travels (v) dictates it's momentum (momentum=mxv). As the curling stone slides down the ice (which is relatively frictionless unless acted upon by other players or objects) and having inertia, continues in it's straight course (again, unless acted upon by outside forces). If the stone hits another stone, it transfers some of its momentum in an elastic collision to that stone and the original stone is deflected in a calculable manner.   
Collisions are used in the game to either clear opponent's stones from the house or out of their defensive positions, or to make adjustments to one's stones present in the house, all based on the momentum of the moving stone, and its transference.
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drek231 [11]

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stratosphere

Explanation:

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The energy absorbed or released when an electron is added to a gaseous atom is know as
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Exothermic reaction hope I helpef
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How many grams of O are in 675 g of Na2O
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I think it is .00005815
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The radius of a uranium atom is 149 pm. How many uranium atoms would have to be laid side by side to span a distance of 4.96 mm?
nikitadnepr [17]

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4960000000 pm

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4.96*1000000000= 4960000000

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