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ch4aika [34]
3 years ago
8

Easy points!

Chemistry
1 answer:
podryga [215]3 years ago
3 0
The soda an air is most likely bubbling up and is going to explode.
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How many particles are in 7.07x10^-6 moles of a substance?
Butoxors [25]

Answer:

4.25*10^18

Explanation:

1 mole =6.023*10^23 particles

so 7.07*10^-6 mole=6.023*10^23*7.07*10^-6 particles=4.25*10^18 particles

5 0
3 years ago
Identify the following neutral elements by their condensed electron configurations. (Enter the chemical symbol or name of the el
Xelga [282]

Answer: [Kr] 5s1 4d10 silver

[Xe] 6s2 4f14 5d7 Iridium

[Ar] 4s2 3d10 4p4 selenium

[Kr] 5s1 4d4 niobium

[Xe] 6s1 4f14 5d10 gold

[Kr] 5s2 4d10 5p4 tellurium

Explanation:

Selenium and tellurium will have the same properties because they both belong to group 16 in the periodic table.

Silver and gold will have the same properties because they both belong the group 11 in the periodic table.

Elements having the same outermost shell configuration show similar properties since chemical reactions occur by loss or gain of electrons. This loss or gain is determined by the number of electrons occupying the outermost shell. Elements in the same group have the same outermost shell electron configuration and similar properties.

5 0
3 years ago
In the reaction a b c, doubling the concentration of a doubles the reaction rate and doubling the concentration of b does not af
PolarNik [594]
The reaction must be a + b --> c

Then you can predict a reaction rate, r o the type r = k * a^n * b^m

Given that the reaction rate is not affected by the concentration of b you can state that m = 0 and r = k * a^n.

Now given, that there is a proportional relation between the reaction rate and a (double a gives double rate), then n = 1 and r = k*a. You can verify that if you dobule a r also doubles.

Answer: r = k*a
3 0
3 years ago
Place the following in order of decreasing molar entropy at 298 k. H2 cl2 f2
Tanzania [10]

cl2>F2>H2

we can do this by molar mass

Hydrogen - 1

clorine - 35 x2 = 70

flourine- 18 x 2 = 36

flourine - 18

6 0
3 years ago
Complete the equation: monosaccharide + monosaccharide → ______ + water Complete the equation: monosaccharide + monosaccharide →
otez555 [7]

Answer: Disaccharides

Explanation:

Disaccharides can be defined as the combination of two monosaccharides which combines together to form a disaccharides.

These are formed by the combination of sugars. The process is hydrolysis as it releases water after the reaction is complete.

Two monosachrrides are joined together by the glycosidic linkage. Some common examples are maltose, sucrose and lactose.

7 0
3 years ago
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