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cluponka [151]
4 years ago
13

Alpha decay _____ of an element.

Chemistry
1 answer:
lidiya [134]4 years ago
5 0
Alpha decay lowers the atomic number of an element. The correct option is B. Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is an helium particle. During this process, the atomic number of the nucleus is reduced by two and the mass number is reduced by 4.
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3 years ago
The alternating rising and falling of the sea caused by the gravitational pull of the moon is called?​
Mashcka [7]

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If the density of water is 1.000 g/ml, what is the mass in grams of 1.000 gallons of water?
Hunter-Best [27]
Recall that 1 gallon = 3.785 L, and 1 L = 1000 mL, so to calculate volume in millilitres, multiply by 3.785 and 1000, resulting in 3785 mL. Next, multiply volume by density to calculate mass (Density = Mass/Volume), so 3785 mL * 1.000 g / mL = 3785 g of water.
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3 years ago
Which of these are methods of separating a solid from a liquid?
Aleks [24]

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a)decanting,filtering,and evaporating.

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3 years ago
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The heat of fusion for water is the amount of energy needed for water to?
Aleonysh [2.5K]

Answer : (C) The heat of fusion for water is the amount of energy needed for water to melt.

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The reaction of phase changes in water is,

Ice(s)\overset{Fusion}{\rightarrow} Water(l)

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4 years ago
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