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PtichkaEL [24]
3 years ago
10

What is the formula of the compound that forms when hydrogen sulfate combine?

Chemistry
1 answer:
trapecia [35]3 years ago
7 0
Hydrogine peroxide
Maintains level of hydrogen sulfate inbalance
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Which element is in 3 period group 2
jeka94

Answer:

magnesium

Explanation:

when you check from the periodic table, magnesium is in group 2 , period 3

5 0
3 years ago
Which word equation shows hydrogen reacting with oxygen to form water?
LenaWriter [7]

Answer:

O2+H2 → H2O

become→zero to−2

∵ it will be reduced and oxidation state of H

2

becomes zero to +1 it will be oxidised.

∴ reaction will be redox

Explanation:

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2 years ago
Use the observation in the first column
Lyrx [107]

Answer:

A. Substance E

A. Substance C

A. Substance A  

Explanation:

Given that:

At 4 °C, Substance E has a vapor pressure of 86. torr and Substance F has a vapor pressure of 136. torr

Which has a higher boiling point?

A. Substance E

B. Substance F

C. Neither,EandF have the same boiling point

The vapor pressure varies inversely proportional to the boiling point.

\mathbf{vapor \ pressure \ \ \alpha \  \  \dfrac{1}{boiling \ point}}

Therefore, the lower the vapor pressure, the higher the boiling point.

At 4°C, Substance E with a lower vapor pressure of 86. torr will have a higher boiling point from the given information.

2.

Recall that :

\mathbf{vapor \ pressure  \ \  \alpha  \ \  \dfrac{1}{enthalpy \ of  \  vaporization}}

therefore, the lower the enthalpy of vaporization, the higher the vapor pressure at any given temperature.

Given that:

Substance C has an enthalpy of vaporization smaller than that of substance D. Then, substance C has a higher vapor pressure.

3.

We've earlier said that:

The vapor pressure varies inversely proportional to the boiling point.

\mathbf{vapor \ pressure \ \ \alpha \  \  \dfrac{1}{boiling \ point}}

Therefore, the lower the vapor pressure, the higher the boiling point.

As such, Substance A will have a higher boiling point.

6 0
3 years ago
Which is an example of practical pursuit of alchemy
Oduvanchick [21]
A practical pursuit of alchemy was the development of metallurgy practices. As alchemists always tried to turn various metals into other things, metalworking techniques were developed even though their experiments were often unsuccessful.
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8 0
3 years ago
Read 2 more answers
Which part of metallic bonding theory helps the most to explain why metals are able to conduct electricity?
devlian [24]

Explanation:

The metallic bonding theory basically states  that valence electrons are free, delocalized, mobile, and not associated with any particular atom. It is pften regarded as a sea of electrons surrounding te atoms.

Metals are able to conduct electricity because of the free movement of the electrons (they are not bounded to a particular atom). Hence, electricity can be defined as the movement of electrons.

3 0
3 years ago
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