1. Hydrogen
2. 11
3. Alkali metals
4. Increases
5. Increases
7. Seven
8. Less
9. hydrogen
10. Idk
Answer:
The three major phases of matter are Solid, Liquid, and Gas. But there is also Plasma
The mass of CH₄ that is consumed is 10.598 g.
<h3>What is enthalpy?</h3>
The enthalpy of a system is defined as the sum of the internal energy of a system and the energy that is produced due to its pressure and volume.
It is given by
H = U+PV
The following reaction takes place during the combustion of CH₄
Energy evolved during the combustion, E = 587.9 kJ
Enthalpy of combustion of methane, ∆H = 890.3 kJ
= 587.9 /890
Mass of CH₄ that is consumed = no of moles × molar mass of CH₄
= 587.9 /890 × 16
= 10.598 g
The mass of CH₄ which is consumed is 10.598 g
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Answer:
More electronegative element in each pair
O & F ⇒ Fluorine is more electronegative.
O & Br ⇒ Oxygen is more electronegative.
O & S ⇒ Oxygen is more electronegative
O & N ⇒ Oxygen is more electronegative
O & P ⇒ Oxygen is more electronegative
O & K ⇒ Oxygen is more electronegative
O & Ca ⇒ Oxygen is more electronegative
Explanation:
Electronegativity is the measure pf tendency to attract bond pair electrons towards itself in a covalent bond.
More electronegative element attract bond pair electron from less electronegative element.
Electronegativity increases along the peroid when we move from left to right in perodic table and decreses down the group or top to bottom in periodic table.
So Oxygen, Fluorine, Chlorine and Nitrogen are the most electronegative among the all elements in periodic table.
The potential energy the bucket started with transforms into kinetic energy as it moves.