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OLEGan [10]
3 years ago
7

Dot structure for magnesium

Chemistry
1 answer:
Dahasolnce [82]3 years ago
8 0
Question: dot structure for magnesium






Answer: Mg :
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A piece of iron metal is heated to 155 degrees C and placed into a calorimeter that contains 50.0 mL of water at 18.7 degrees C.
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What has to be true about available resources for competition to exist?
Mila [183]

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Limited

Explanation:

For competition to exist within a population or between population, shared or common resources that organisms holds very important must be very limited and scared.

Competition is a struggle between organisms for limited resources in the ecosystem.

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3 years ago
Is copper penny react<br> reaction with Nitric<br> acid a<br> Chemical or physical<br> Change?
riadik2000 [5.3K]

Answer:

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Have a nice day ;)(^-^)

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A student mixed several different 12 mm plastic beads together by mistake. Luckily the beads had different densities. One group
Gala2k [10]

Answer:

The answer is "Each student will get a glass of water and drop the bead into it  but the beads float 0.6 g / cm3 and slip down to 1.2 g / cm3

".

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Water has a 1g / cm^3 density. Although Type A is higher than air, Type B is much more compact. it means will float if they place  it in water type-A where type-B sinks.

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