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Marrrta [24]
3 years ago
6

As we move across the periodic table, from potassium, K, to krypton, Kr, we see the following changes. All BUT ONE is

Chemistry
1 answer:
tatuchka [14]3 years ago
5 0
The answer is A B and C
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How many sulfur atoms are present in 25.6 g of Al2(S2O3)3
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Given the mass of Al_{2}(S_{2}O_{3})_{3}=25.6 g

The molar mass of Al_{2}(S_{2}O_{3})_{3}=390.35g/mol

Converting mass of Al_{2}(S_{2}O_{3})_{3}to moles:

25.6 g Al_{2}(S_{2}O_{3})_{3}*\frac{1molAl_{2}(S_{2}O_{3}}{390.35 gAl_{2}(S_{2}O_{3}} =0.0656molAl_{2}(S_{2}O_{3}

Converting mol Al_{2}(S_{2}O_{3})_{3}to mol S:

0.0656mol Al_{2}(S_{2}O_{3})_{3}*\frac{6molS}{1mol Al_{2}(S_{2}O_{3})_{3}}=0.3936 molS

Converting mol S to atoms of S using Avogadro's number:

1 mol = 6.022*10^{23}atoms

0.3936mol S *\frac{6.022*10^{23}atoms S}{1 mol S}=2.37*10^{23} S atoms

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3 years ago
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mrs_skeptik [129]

Answer:1. Energy 2. Medium 3. Original position 4. Waves 5. Matter

Explanation:

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3 years ago
Cryogenics has the potential to be useful in a variety of fields, including medicine. Suppose you have engineered a method to su
tatiyna

Explanation:

It is known that the specific heat capacity of Liver (C_{p}) is 3.59 kJ kg^{-1}.K^{-1}

It is given that :

Initial temperature of Liver = Body temperature = 37^{o}C = 310 K

Final temperature of Liver = 180 K

Relation between heat energy, mass, and change in temperature is as follows.

                        Q = m \times C_{p} \times \Delta T

Now, putting the given values into the above formula as follows.

                    Q = m \times C_{p} \times \Delta T

                    Q = 1.5 kg \times 3.59 kJ/kg.K \times (310 - 180) K

                         =  700.05 kJ

Therefore, we can conclude that amount of heat which must be removed from the liver is 700.05 kJ.

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3 years ago
Which is not a strong electrolyte?<br> A.some bases<br> B.some acids<br> C.salts<br> D.water
tiny-mole [99]
The anwer would be salts
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3 years ago
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In the table, record the temperature of each thermometer every 2 minutes for the first 10 minutes. Then record the temperature e
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Explanation: found on brainly

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