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-BARSIC- [3]
3 years ago
8

The atomic number of beryllium (Be) is 4, and the atomic number of barium (Ba) is 56. Which comparison is best supported by this

information?
a. They are in the same group because they have similar atomic masses, but they are in different periods because they have different chemical properties.

b. They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.

c. They are in the same group because their atomic numbers are each multiples of four, but they are in different periods because they have different chemical properties.

d. They are in the same group because they have similar atomic masses, but they are in different periods because they have very different atomic numbers.
Chemistry
2 answers:
Cloud [144]3 years ago
8 0
The answer is b) similar chemical properties but very different atomic numbers
SSSSS [86.1K]3 years ago
4 0

Answer:

B: They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.

Explanation:

I took the Unit test on EDG and I got it correct

Pls mark me brainliest

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The fish died after living in the aquarium for many years
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Why is seawater a better conductor of electricity than freshwater?
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Read 2 more answers
At 524 mm Hg and 35 °C, a sample of gas occupies a volume of 275 ml. The gas is transferred to a 325-ml flask and the temperatur
Deffense [45]

Answer:

400.197mmHg

Explanation:

P1V1 / T1 = P2V2 / T2

Where P1=524 mm Hg V1 =275 ml T1 = 35°C +273 = 308k

V2= 325-ml T2= 5°C+273 = 278k , P2= ?

Substituting the values into the formula.

524 mm Hg ×275 ml /308k = P2×325-ml/278k

Cross multiply

524 mm Hg ×275 ml×278k=308k×P2×325-ml

40059800= 100100×P2

P2 = 40059800/100100

P2= 400.197mmHg

Hence, the second pressure will be 400.197mmHg

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A 3.81-gram sample of NaHCO3 was completely decomposed in an experiment.
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Explanation:

In this experiment, carbon dioxide and water vapors combine to form H2CO3. After decomposition, the Na2CO3 had a mass of 2.86 grams. Determine ...

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