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Gnom [1K]
3 years ago
8

How can two objects of different masses have the same temperature but different amounts of thermal energy?​

Chemistry
1 answer:
galben [10]3 years ago
4 0
The masses can affect the thermal energy even if it’s the same temperature
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Main ingredients of plastic bags and natural resources used please
DanielleElmas [232]
<span>polyethylene or polythene are the main ingredients </span>
4 0
4 years ago
Hydro caloric acids + calcium =
tangare [24]

That produces hydrogen gas.

4 0
3 years ago
Which of the following best helps to account for the fact that the F- ion is smaller than the O2- ion?
katrin [286]

Answer: Option (B) is the correct answer.

Explanation:

Both oxygen and fluorine are period 2 elements and when we move across a period then there occurs a decrease in atomic size of the atoms. Hence, the atomic radius of a neutral fluorine atom is smaller than a neutral oxygen atom.

Moreover, atomic number of fluorine is 9 and it has higher nuclear charge due to which it will cause more attraction of electrons. As a result, size of a fluorine ion will be smaller.  

On the other hand, size of oxygen atom is larger and has small nuclear charge due to which attraction of electrons by its nucleus will not be strong enough. Hence, the size of O^{2-} will be larger.

Thus, we can conclude that the statement F^{-} has a larger nuclear charge than O^{2-} has, is correct for the fact that the F^{-} ion is smaller than the O^{2-} ion.

3 0
4 years ago
How many grams of magnesium oxide are formed if 20.9 grams of Mg and 15.2 g of O2 react.
anyanavicka [17]

Answer:

Mass of magnesium oxide formed = 35.1 g

Explanation:

Given data:

Mass of Mg = 20.9 g

Mass of O₂ = 15.2 g

Mass of magnesium oxide formed = ?

Solution:

Chemical equation:

2Mg + O₂     →   2MgO

Number of moles of Mg:

Number of moles = mass/molar mass

Number of moles = 20.9 g/ 24 g/mol

Number of moles = 0.87 mol

Number of moles of O₂:

Number of moles = mass/molar mass

Number of moles = 15.2 g/ 32 g/mol

Number of moles = 0.475 mol

Now we will compare the moles of MgO with magnesium and oxygen.

                Mg          :         MgO

                  2           :           2

                0.87        :         0.87

                  O₂         :         MgO

                     1         :            2

                   0.475   :        2/1×0.475 = 0.95  

Number of moles of MgO formed by Mg are less thus Mg will limiting reactant.

Mass of MgO:

Mass = number of moles × molar mass

Mass = 0.87 mol × 40.3 g/mol

Mass = 35.1 g

                 

6 0
3 years ago
Consider the acid-catalyzed hydration of 3-methyl-1-butene. For each of the four steps, add one or two curved arrows to the reac
UkoKoshka [18]

Answer:

This addition follows MarkowniKov's rule

Explanation:

The image attached shows the mechanism of the reaction. It can easily be seen that a secondary carbocation is formed leading to the alkanol. The image simplifies the mechanism which involves the initial addition of the hydroxide followed by the hydrogen ion.

5 0
4 years ago
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