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gavmur [86]
3 years ago
7

What is opinion definition?

Chemistry
1 answer:
Mariana [72]3 years ago
3 0

Answer:

If your asking for the definition of opinion, it's the belief or judgement of how you see a certain situation, example

  • Ice cream is the best dessert

That's an opinion since it is not a solid statement that everybody in the world would agree on. So it's how you think of something.

Hope this helped and if it did then mark as brainliest! Appreciate it.

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Why are both accuracy and precision important in making a measurement
Mnenie [13.5K]
It is because precise amount measured is required for the reaction to take place chemically, and an accurate conclusion will prevent any dangerous and misleading conclusions made due to inaccurate data.

For example, in physics, every measurement we state the instrument uncertainty after the measurement, stating that it is not a definite certain measurement, but the smaller the value for the uncertainty, the more precise that instrument's data is.

Precise is important in terms of knowing how many moles or grams of reactant is required for this reaction to complete without any shortage or excess chemically. Accuracy is based on the conclusions we make in regards to the data and observations we make experimentally.
4 0
3 years ago
How does the number of Carbon atoms per molecule affect the state at room temperature? Explain how this is similar or different
RSB [31]

Explanation:

There are three states of matter:

1) Solid: In this state, the particles lie closer to each other. there is a strong intermolecular force of attraction between the particles.

2) Liquid: In this state, the particles are at a certain distance to each other. There is an intermediate intermolecular force of attraction between the particles.

3) Gas: In this state, the particles are farther from each other. There is weaker  intermolecular force of attraction between the particles.

As the number of carbon atoms in a molecule increases, the number of particles increases and the particles will come closer to each other. Hence, the state of matter will shift towards the solid state.

Viscosity is defined as the tendency to resist the particles to flow. As, the number of carbon atoms increases, the Vander-Walls forces increases, the particles are closer to each other and Hence, the viscosity will increase.

7 0
3 years ago
Explain why it is not possible to draw a skeletal structure for methane.
Ghella [55]
Because its structure is drawn by dots which can't describ its structure.
4 0
3 years ago
Predict (to 3 sig figs) the isochoric specific heat of gaseous SF6 (molar mass 146.06 g/mol) at 1200 K, assuming that at this te
bazaltina [42]

Explanation:

As it is known that SF_{6} molecule is a non-linear molecule. Therefore, its isochoric heat capacity will be as follows.

              C_{v} = \frac{3}{2}R + \frac{3}{2}R + (3 \times 7 - 6)R

                         = \frac{3}{2}R + \frac{3}{2}R + 15R

                         = 18 R

Also,    C_{V} = M \times C_{v}

where,     C_{V} = molar heat capacity

                    M = molecular mass

               C_{v} = specific heat

Hence, calculate the value of C_{v} as follows.

                 C_{V} = M \times C_{v}

               8 \times 8.314 \times 10^{7} = 146.06 \times C_{v}

               C_{v} = 10.2 \times 10^{6} erg. K^{-1}. gm^{-1}

This means that value of isochoric specific heat is 10.2 \times 10^{6} erg. K^{-1}. gm^{-1}.

Yes, we have to assume ideal gas behavior because for ideal gas:

                         dU = nC_{v}dT

Whereas for real gases "\frac{an^{2}}{V^{2}}" has to be added here.

5 0
3 years ago
Twelve grams of carbon combine chemically with 4 grams of hydrogen to produce a
Eddi Din [679]

Answer:

                      Empirical Formula  =  C₁H₄ or CH₄

Explanation:

Data Given:

                     Mass of C  =  12.0 g  

                     Mass of H  =  4 g  

Step 1: <u>Calculate Moles of each Element;</u>

                     Moles of C  =  Mass of C ÷ At.Mass of C

                     Moles of C  = 12.0 ÷ 12.0

                     Moles of C  =  1.0 mol

                     Moles of H  =  Mass of H ÷ At.Mass of H

                     Moles of H  = 4.0 ÷ 1.0

                     Moles of H  =  4.0 mol

                     Moles of O  =  %O ÷ At.Mass of O

                     Moles of O  = 53.924 ÷ 16.0

                     Moles of O  =  3.370 mol

Step 2: <u>Find out mole ratio and simplify it;</u>

                             C                                                     H                                

                            1.0                                                   4.0                              

                         1.0/1.0                                             4.0/1.0                    

                              1                                                      4                  

Hence,

              Empirical Formula  =  C₁H₄ or CH₄

6 0
3 years ago
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