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nexus9112 [7]
3 years ago
9

In dimensional analysis you should always have the same units adjacent to each other (top left to bottom right)

Chemistry
1 answer:
aleksklad [387]3 years ago
3 0

Answer:

False

Explanation:

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A nitrogen atom has five valence electrons. The Lewis structure shows how a nitrogen atom bonds with three hydrogen atoms to for
nordsb [41]
It has too be 6 or 4

3 0
3 years ago
Write a ground state electron configuration for each neutral atom
Gre4nikov [31]

Answer:

Pb[lead] [Xe]4f^145d^106s^26p^2

U[uranium] 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4e^14 5d^10 6p^6

7s^2 5f^4

This notation can be written in core notation or noble gas notation by replacing the

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4e^14 5d^10 6p^6

7s^2 5f^4

with the noble gas [Rn].

[Rn]7s25f4

N[nitrogen] The full electron configuration for nitrogen is 1s^2 2s^2 2p^3.

Ti[titanium] Ti2+:[Ar]3d^2

Ti:1s^2 2s^2 2p^6 3s^2 3p^6 3d^2 4s^2

1s^2 2s^2 2p^6 3s^2 3p^5 = 17 electrons

(1) electron gain will result to a

negative charge (−), and

(2) electron loss will result to a positive charge (+),

1s^2 2s^2 2p^6 3s^2 3p^6 = 18 electrons

Hg[mercury] You should then find its atomic number is 80. It has a Xe core, so in shorthand notation, you can include [Xe]instead of

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^6,

for 54 electrons. For the 6th row of the periodic table, we introduce the 4f orbitals, and proceed to atoms having occupied 5d orbitals. We, as usual, have the ns orbitals, and n=? for the 6th period?

Mercury has a regular electron configuration. It becomes:

[Xe]4f145d106s2

Explanation:

socratic.org helped me! I'm really sorry if this is wrong!

6 0
2 years ago
3 Cells use oxygen to release energy during
Tamiku [17]

Answer:

Explanation: Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.

4 0
1 year ago
Read 2 more answers
What type of bond holds metal atoms<br> together?
Nimfa-mama [501]
The atoms in a metal are held together by electrostatic forces called metallic bonds.
8 0
3 years ago
Read 2 more answers
HELP!!!!! IM TIMED
Marianna [84]

Answer:

Substance X has the highest temperature because its particles have more kinetic energy.

Explanation:

The temperature of a substance is an indicator of the average kinetic energy of the molecules of the substance.

In particular, the two quantities are directly proportional to each other, as shown in the equation:

KE=\frac{3}{2}kT

where

KE is the average kinetic energy of the molecules

k is the Boltzmann's constant

T is the temperature of the substance

In this problem, we have a figure showing the movement of particles for 2 substances.

For substance X, the particles have long movement lines behind them: this means that they move faster, so their average kinetic energy is larger, and so the temperature of substance X is higher.

For substance Y, the particles have short movement lines behind them: this means that they move slower, so their average kinetic energy is smaller, and so the temperature of substance Y is lower.

Therefore, the correct option is

Substance X has the highest temperature because its particles have more kinetic energy.

7 0
3 years ago
Read 2 more answers
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