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PIT_PIT [208]
3 years ago
5

The density of a metal cube is 8 x103 kg/m3. Convert

Chemistry
1 answer:
Rom4ik [11]3 years ago
4 0

Answer:

Explanation:

[peirod4

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Which of the following will have the highest boiling point?
DerKrebs [107]

Answer:

0.1M NH3

Explanation:

The boiling point of aqueous solutions depend on the nature of intermolecular interactions present. KBr will yield an ionic solution but NH3 will yield a molecular solution having hydrogen bonds. The degree of hydrogen bonding in the aqueous solution will further increase with the concentration of the solution.

Remember that experimental data shows that hydrogen bonds are strong bonds that lead to a significant increase in the boiling point of solutions. Hence 0.1M NH3 solution will have a higher boiling point due to intermolecular hydrogen bonding in the solution.

8 0
3 years ago
Atoms of metallic elements tend to...
lara31 [8.8K]

The answer is: lose electrons and form positive ions.

Most metals have strong metallic bond, because of strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.

The ionization energy (Ei) is the minimum amount of energy required to remove the valence electron, when element lose electrons, oxidation number of element grows (oxidation process).

For example, magnesium has atomic number 12, which means it has 12 protons and 12 electrons. It lost two electrons to form magnesium cation (Mg²⁺) with stable electron configuration like closest noble gas neon (Ne) with 10 electrons.  

Electron configuration of magnesium ion: ₁₂Mg²⁺ 1s² 2s² 2p⁶.  

3 0
3 years ago
What song gets you in your feels the most? mines what could've been by gone west
IrinaK [193]

Answer:def has to be someone you loved by Lewis Capaldi

Explanation:

7 0
3 years ago
Read 2 more answers
1. define speed
Harrizon [31]
1- thé everyday use of kinematic basically the speed for something it’s the magnitude.

2-the speed of something in a certain direction
2a- They are both related by speed.

3-the capacity of a vehicle which gains speed in a short time

4-it’s an attraction of all matter (not sure on this one)
5 0
2 years ago
The indicator propyl red has a Ka of 3.3 X 10-6 . It is red at low pH and yellow at higher pH. What is the approximate pH range
Alik [6]

Answer:

4.48 - 6.48

Explanation:

A pH indicator works in a better way in a range of pH = pKa ± 1. That means we need to determine the pKa of the indicator propyl red to find the range over which it change its color. That is:

pKa = -log Ka

pKa = -log 3.3x10⁻⁶

pKa = 5.48

That means the range over propyl red will change from yellow to red or vice versa is:

4.48 - 6.48

5 0
2 years ago
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