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Tanya [424]
2 years ago
5

What type of reaction is the following reaction? AgNO3+Na→ NaNO3 + Ag

Chemistry
1 answer:
almond37 [142]2 years ago
8 0
Single-replacement reaction
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What happens to the partial pressure of oxygen in a sample of air if the temperature is increased? It increases. It decreases. I
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The partial pressure of oxygen in a sample of air increases if the temperature is increased.

Answer: Option 1

<u>Explanation: </u>

According to Guy-Lussac's law, at constant volume, pressure exhibited by the gas molecules will be directly proportional to the temperature of the gas molecules. It is also known that pressure of mixture of gas molecules is the sum of partial pressure of each gas molecule in the mixture.

If the temperature increases, the partial pressure and the pressure of the mixture of gas also tend to increase. As it can be seen that at higher altitudes, the low temperature leads to the decrease in oxygen's partial pressure in the air.

So, it can also be concluded that temperature increases the oxygen's partial pressure in air increases.

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2 years ago
Which statement is true about crystal lattice energy
Arturiano [62]
Hey there!:

1) The additional stability that accompanies the formation of the network<span>Crystalline is measured as network enthalpy. 
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3) </span>The enthalpy of the network depends directly on the size of the loads and conversely in the distance between the ions .


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3 0
3 years ago
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How many grams of lead would be required to make 119 grams of water
Ludmilka [50]

Answer:

(119 g H2O) / (18.01532 g H2O/mol) x (1 mol Pb / 2 mol H2O) x (207.21 g Pb/mol) = 684 g Pb

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Which of the following covalent bonds is the most polar?
Bezzdna [24]

Answer:

D.) H-O

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Polarity is determined based on the difference in electronegativity of the atoms. The greater the difference, the more polar the bond. The general trend is that the atoms in the top-right corner of the periodic table are the most electronegative.

A.) is incorrect because H-H has no electronegativity difference, making it nonpolar.

B.) and C.) are incorrect because their electronegativity differences are not the greatest.

D.) is correct because the electronegativity difference between the H and O is the greatest.

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2 years ago
If you were to take several random samples from a pure substance the samples
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Would all have the same ratio of elements.
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