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Alex_Xolod [135]
2 years ago
15

An 80.0 g sample of a gas was heated from 25 ∘C to 225 ∘C. During this process, 346 J of work was done by the system and its

internal energy increased by 8735 J. What is the specific heat of the gas?
Chemistry
1 answer:
xz_007 [3.2K]2 years ago
7 0

Answer:

........

Explanation:

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Write the following number using Scientific notation : 13,215,296.50 *​
ludmilkaskok [199]

Answer:

13.22x10^7

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A gold ring with a mass of 16g was dropped in the snow and its temperature dropped from 35°C to 0°C. How much heat was released
Luda [366]

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-72.8 joules

Explanation:

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How do you solve for density
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The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.

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12. What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutrons?
NeTakaya

Answer:

9

Explanation:

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3 years ago
Draw the lewis structure for bef2 in the box at the right, including lone pairs.
Kamila [148]

Answer :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and the unpaired electrons present in the molecule.

The given molecule is, BeF_2

Beryllium has '2' valence electrons and fluorine has '7' valence electrons. Beryllium is the central atom and fluorine is the terminal atom.

Total number valence electrons in BeF_2 = 2 + 2(7) = 16

According to the Lewis-dot structure, there are '4' number of bonding electrons and 12 number of non-bonding electrons (lone-pair).

The Lewis-dot structure is shown below.

3 0
2 years ago
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