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34kurt
3 years ago
7

Which of the following is the correct formula for sulfuric acld?

Chemistry
1 answer:
Alona [7]3 years ago
6 0

Explanation:

The answer is H2SO4 for sulphuric acid

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A chemist carefully measures the amount of heat needed to raise the temperature of a 278.0g sample of C5H12S from 0.8degree cels
Alex_Xolod [135]

Answer:

The answer to your question is    C = 2.01 J/g°C

Explanation:

Data

mass = m = 278 g

Temperature 1 = T1 = 0.8°C

Temperature 2 = T2 = 15.9 °C

Heat = Q = 8.46 x 10³ J

Heat capacity = C = ?

Process

1.- Write the formula to calculate the heat

        Q = mC(T2 - T1)

2.- Solve for C

        C = Q / m(T2 - T1)

3.- Substitution

         C = 8.46 x 10³ / 278 (15.9 - 0.8)

4.- Simplification

          C = 8.46 x 10³ / 4197.8

5.- Result

          C = 2.01 J/g°C

         

8 0
3 years ago
What is the electron geometry if you have 4 electron groups around the center atom? What is the electron geometry if you have 4
nadya68 [22]

Answer:tetrahedral

Explanation:

According to Valence Shell Electron Pair Repulsion Theory (VSEPR). The number of electron pairs on the valence shell of the central atom in a molecule influences the shape of that molecule. Four electron pairs around the central atom of a molecule leads to a tetrahedral geometry as predicted by VSEPR.

8 0
3 years ago
Alcohol __________ by making it difficult to anticipate driving situations.
svlad2 [7]
Makes driving less stressful
8 0
3 years ago
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The chemical equation given below represents the chemical reaction between lithium (Li) and sulfur (S). In the equation, why is
algol [13]

Answer:

A. to show the number of lithium atoms involved in the reaction

Explanation:

The reaction between lithium and sulfur produces lithium sulfide where two lithium and one sulfur atoms react.

Balanced equation: 2 Li + S = Li2S

The 2 present before Li on the reactant's side shows how many lithium atoms are supposed to be present per every 1 sulfur atom for this reaction to be balanced and true.

That is it! :)

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3 years ago
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By examining electron domain geometry, one can determine that the ammonia molecule (NH3) has
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has only one sp2 orbitals, 

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8 0
3 years ago
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