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Sedbober [7]
3 years ago
11

This is my question for science 9:

Chemistry
1 answer:
kvasek [131]3 years ago
5 0
Yes, she is right. 1: when she took them out of the freezer heat was added. 2: when she toasted them in the oven heat was added and a chemical change occurred because the baking soda/powder reacted, causing the muffins to rise.
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If you had a sample containing 55 alpha particles, how many protons would be present in that sample? Show all necessary work.
arlik [135]
An alpha particle is a helium nucleus without the electrons - 2 neutrons and 2 protons.

So, all you would have to do is 2 x 55, which equals 110.

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4 years ago
What is the ratio of mass of 0.7moles of nitrogen gas to 11.2liters of oxigen gas at STP?​
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3 years ago
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SashulF [63]

Answer is: 2. can dissolve.

Ionic compounds separates into particles (ions) in water because of their ionic bond.

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6 0
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Sergio039 [100]

I think that it's cannot include supernatural explanations, or C.

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6 0
4 years ago
Plants such as _______________ provided much nitrogen to the soil.
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