Answer:
Explanation:
The chlorine is present in group 17. It has seven valance electrons. It accept one electron to complete the octet and show -1 charge and from anion.
Cl⁻
Sodium is present in group one. It alkali metal. It loses one valance electron and show +1 charge. It form sodium cation.
Na⁺
Magnesium is present in group two. It loses its two valance electrons and show +2 charge. It form magnesium cation.
Mg⁺²
Oxygen is present in group 16. It has six valance electrons. It require two electrons to complete the octet and show -2 charge.
O⁻²
Aluminium is present in group 13. it has three valance electrons. It loses its three valance electrons and show +3 oxidation state
Al⁺³ (most common)
others = Al⁺¹, Al⁺²
Iron is present on group eight.
Fe⁺² , Fe⁺³ (most common)
others = Fe⁺⁴, Fe⁺⁵
Copper is present in group eleven.
Cu⁺¹ Cu⁺²
other = Cu⁺³
Zinc is present in group twelve. -2, 0, +1 , +2
Zn⁻², Zn⁺¹, Zn⁺²
Answer:
Oxygen
Explanation:
If two balloons are filled with hydrogen gas and helium gas respectively, then we want to identify what gas is in each balloon, we have to do so by exposing the both balloons to flame in an oxygen atmosphere.
Hydrogen combines with oxygen in the presence of a flame with quite a loud sound and the flame is sustained but when a flame is brought near helium gas in a balloon, the gas will only make a little sound when exposed to the flame and extinguish the flame.
The reason for the explosion of the gas in the hydrogen balloon is that combustion of hydrogen gas is exothermic. The heating up of surrounding air molecules leads to a sudden explosion.
However, the helium balloon makes a little sound when the balloon is ruptured releasing helium gas which extinguishes the flame.
Answer is: glucose or galactose <span>give up an electron and they are oxidized, usually to acid.
</span>Benedict's reagent <span> is a mixture of </span>sodium citrate, sodium carbonate (Na₂CO₃)<span> and </span>copper(II) sulfate (CuSO₄).
When Benedict's reagent is <span>mixed and heated with glucose and galactos, the copper accept the electrons and become reduced. </span><span>Benedict's test detects the presence of </span><span>aldehydes in solution.</span>
Answer:
are species formed by chemical reaction
Explanation:
example when one element react with other new thing which is formed called product
eg. when oxygen react with hydrogen gas we obtain water so water is the product.
This reason would mainly be because the "earth would have moderate temperature" as more Venus does not. When having the correct answer moderate temperature, this would allow for the water to be supplied. But, as for it not to have the correct and moderate temperature, this would then allow for it not to have to supply of water.