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docker41 [41]
3 years ago
15

Aluminum chloride acts as a strong Lewis acid since

Chemistry
1 answer:
ryzh [129]3 years ago
8 0

Answer: Since it became stronger

Explanation: ok

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Chemical formula of Nascent Hydrogen is *<br>a) H2<br>b) H<br>c) HCl<br>d) HOCl​
Viktor [21]

Answer:

(a) H2

Explanation:

ok. write the answer

8 0
3 years ago
What human made mechanisms are responsible for increasing the rate of global warming??
Natali [406]
Cars, aeroplanes, factories etc
6 0
3 years ago
Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best pr
masya89 [10]
<span>A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.

I really hope this helps! :D</span>
6 0
3 years ago
Read 2 more answers
Identify the effect of increasing acidity on the solubility of the given compounds Sr(OH)2 S r( O H) Subscript2 ZnS Z n S PbBr2
Dafna1 [17]

Answer:

Solubilities of Sr(OH)_{2},ZnS,Ca_{3}(PO_{4})_{2} and BaCO_{3} increases with increasing acidity

Explanation:

Sr(OH)_{2}\rightleftharpoons Sr^{2+}+2 OH^{-}

Concentration of OH^{-} decreases with increasing acidity. Therefore solubility of Sr(OH)_{2} increases to keep constant solubility product.

ZnS\rightleftharpoons Zn^{2+}+S^{2-}

Concentration of S^{2-} decreases with increasing acidity due to formation of H_{2}S. therefore solubility of ZnS increases to keep constant solubility product

PbBr_{2}\rightleftharpoons Pb^{2+}+2Br^{-}

Increasing acidity have no effect on this above equilibrium. Therefore solubility of PbBr_{2} remains constant.

Ca_{3}(PO_{4})_{2}\rightleftharpoons 3Ca^{2+}+2PO_{4}^{3-}

Concentration of PO_{4}^{3-} decreases with increasing acidity due to formation of H_{3}PO_{4}. Therefore solubility of Ca_{3}(PO_{4})_{2} increases to keep constant solubility product.

NaI\rightleftharpoons Na^{+}+I^{-}

Increasing acidity have no effect on this above equilibrium. Therefore solubility of NaI remains constant.

BaCO_{3}\rightleftharpoons Ba^{2+}+CO_{3}^{2-}

Concentration of CO_{3}^{2-} decreases with increasing acidity due to formation of H_{2}CO_{3}. Therefore solubility of BaCO_{3} increases to keep constant solubility product.

5 0
3 years ago
On a 7 day wilderness expedition you'll need to heat 4.0kg of water to the boiling point each day. The air temperature will aver
max2010maxim [7]

Answer:

38 canisters

Explanation:

The combustion of propane can be represented by the equation below:

C₃H₈ (g) + O₂ (g) → CO₂ (g) + H₂O(g)     ΔHc = -103.85 kJ/mol

The boiling of water is represented below:

H₂O(l) → H₂O(g)    ΔH = Q = mcΔT

The heat necessary to make water reach the boiling point is Q, which is calculated with the mass of water (m = 4.0 kg), its specif heat capacity ( c = 4.200 J/kg°C) and temperature variation (ΔT = 100 - 25)

Therefore, ΔH = Q = 4.0 kg x 4.200 kJ/kg°C x 75 °C

ΔH = Q = 1260.0 kJ

This is the amount of heat necessary to heat the water every day. Since the expedition will last 7 days, the total heat will be 8820 kJ

Now we need to calculate the amount of propane needed to generate this heat:

1 mol C₃H₈ _______ 103.85 kJ

X                 _______ 8820 kJ

x = 84.9 mol C₃H₈

1 mol C₃H₈ _____ 44 g

84.9 mol C₃H₈ ___ x

x = 3735.6 g

1 canister _____ 100 g C₃H₈

x               _____ 3735.6 g

x = 37.3 canisters

The minimum number of fuel canisters I must bring is 38 canisters.

3 0
3 years ago
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