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Bess [88]
3 years ago
6

Please help me I will give you the brain thing and extra points. image below part 9

Chemistry
2 answers:
marshall27 [118]3 years ago
8 0

Answer:B

Explanation:Factors that influence the reaction rates of chemical reactions include the concentration of reactants, temperature, the physical state of reactants and their dispersion, the solvent, and the presence of a catalyst.

blsea [12.9K]3 years ago
5 0

Answer:

I think D but dont count on me

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What is indicated by the methyl- prefix ​
Ugo [173]

Answer:

B

Explanation:

The methyl prefix means theres a CH3 group bonded to a carbon in a hydrocarbon. This is called branching because it looks like a branched tree. This is literally cheating but you do you.

3 0
2 years ago
Onsider the chemical system: H2​(g)+I2​(g)------>2HI(g)
luda_lava [24]

Answer:

The equation  \frac{[HI]^{2} }{[H_{2}[I_{2} ]  } represent

(1) law of mass action

(2) mass action expression

(3) equilibrium constant expression

Explanation:

At a given temperature, the rate of a reaction at a particular instant is proportional to the product of the active masses of the reactants at that instant raised to powers which are numerically equal to the numbers of their respective molecules in the stoichiometric equation describe  the reaction.

3 0
3 years ago
1. Calculate the empirical formula of a compound that contains 2% hydrogen, 74 % carbon and 24% oxygen.
Ludmilka [50]

empirical formula = when the percentage compositions by mass of elements in a compound are divided by their relative atomic masses.

from the obtained amount the smallest amount will divide all.

the answers can then be rounded off if in decimals or they can be multiplied by 2 if they have .5 decimals e.g 2.5 , 7.5 , etc.

solution: HYDROGEN    CARBON      OXYGEN

                2/1                      74/12               24/16

                  2                         6.167                 1.5

                  2 / 1.5                  6.167 / 1.5           1.5 / 1.5

                  1.333                        4.111                   1

                      1                              4                        1


answer :     C4OH

HOPE IT HELPED !!!

5 0
3 years ago
Find the ratio of the volume divided by the
Nataly [62]

From the pair of values given, the ratio of the volume to the temperature for the first data pair is, 0.0026 cm³/K

<h3>What is a Ratio?</h3>

A ratio is a comparison between two quantities showing how much one quantity differs from another.

From the data given, the first data pair is as follows ;

  • Temperature = 276 K
  • Volume = 0.72 cm³

Ratio of volume to temperature = volume / temperature

Ratio = 0.72 / 276

Ratio = 0.002608 cm³/K

The significant figure's rule for division is the least number of significant figures used in the operation.

The least significant figure of the values given is 2.

Therefore, the ratio of the volume to the temperature for the first data pair is 0.0026 cm³/K

Learn more about ratio here :

brainly.com/question/25927869

#SPJ1

4 0
2 years ago
What is the isotope notation for an ion of silver-109 with a charge of positive 1
Arisa [49]

Answer:

The isotope notation for an ion of silver-109 with a charge of positive 1 is _{47}^{109}Ag^{1+}.

Explanation:

The elements with same atomic number with different mass numbers are called isotopes.

The isotopes of silver is as follows.

_{47}^{109}Ag,_{47}^{107}Ag

From the above two isotopes have same atomic number and different mass number.

From the given,the isotope notation for an ion of silver-109 with a charge of positive 1

It can be represented is as follows.

_{47}^{109}Ag^{1+}

General representation of isotope is as in attachment.

6 0
3 years ago
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