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svp [43]
2 years ago
14

6) What is the electron configuration of an atom in its ground state with a

Chemistry
1 answer:
shutvik [7]2 years ago
8 0

Answer: the answer is B!

Explanation:

S and p’s are valence electrons and if added, there is 7 in total !

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What amount of heat is released when the temperature of 450.0 g of a
Molodets [167]

Answer:

\boxed {\boxed {\sf 4038.48 \ Joules}}

Explanation:

Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:

q=mc\Delta T

The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the  change in temperature is 7.1 °C.

m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C

Substitute the values into the formula.

q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)

Multiply the first 2 values together. The grams will cancel out.

q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)

Multiply again. This time, the degrees Celsius cancel out.

q= 4038.48 \ J

<u>4038.48 Joules</u> of heat energy are released.

5 0
3 years ago
What is the mass of a block with a volume of 18 cm^3, and a density of 9.2 g/cm^3?
Semmy [17]

Answer: 165.6grams

Explanation:

Mass of a block = ?

Volume of block = 18 cm^3

Density of block = 9.2 g/cm^3

The density of any object depends on its mass and volume.

i.e Density of block = Mass / volume

9.2 g/cm^3 = Mass / 18 cm^3

Mass = 9.2 g/cm^3 x 18 cm^3

= 165.6 g

Thus, the mass of the block is 165.6grams

6 0
3 years ago
The variable part of an amino acid is the __________.
4vir4ik [10]

answer: the variable part of an amino acid is the: SIDE CHAIN

6 0
2 years ago
Is the process represented below an example of a physical or a chemical
Basile [38]
It is a physical change because only the states as being changes, not the actual bonds in the compound.
6 0
2 years ago
Fruits are the characteristics of ___
sukhopar [10]

C. Angiosperms (flowering plants)

5 0
2 years ago
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