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4 years ago

Temperature is the______

2 answers:

Natasha2012 [34]4 years ago

6 0

Answer: Temperature is the independent variable and amount of sugar in the solution is the dependent variable.

Explanation:

Dependent variable is defined as the variable whose value changes with respect to any other variable.

Independent variable is defined as the variable which remain as such and has no effect on the change of another variable. For Example: Time

Solubility is a property of substance to interact with the solvent particles. Thir property is dependent on temperature.

As, the temperature of the system increases, the solubility of the substance will increase and vice-versa.

Hence, temperature is the independent variable and amount of sugar in the solution is the dependent variable.

makkiz [27]4 years ago

3 0

Answer:

1. independent variable

2. dependent variable

Explanation:

jus took the quiz

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Determine the heat of reaction (ΔHrxn) for the reaction of calcium carbonate (CaCO3) with HCl to produce CO2 by using heat of fo

andrey2020 [161]

Answer: The heat of reaction (ΔHrxn) for the reaction is -164.9kJ

Explanation:

The given balanced chemical reaction is,

$CaCO_3(s)+2HCl(g)\rightarrow CaCl_2(s)+CO_2(g)+H_2O(g)$

To calculate the enthalpy of reaction $(\Delta H^o)$ .

$\Delta H^o=H_f_{product}-H_f_{reactant}$

$\Delta H^o=[n_{CaCl_2}\times \Delta H_f^0_{(CaCl_2)}+n_{CO_2}\times \Delta H_f^0_{(CO_2)}+n_{H_2O}\times \Delta H_f^0_{(H_2O)}]-[n_{CaCO_3}\times \Delta H_f^0_{(CaCO_3)+n_{HCl}\times \Delta H_f^0_{(HCl)}]$

where,

$\Delta H^o_f_{(CaCO_3(s))}=-1206.9kJ/mol\\\Delta H^o_f_{(HCl(g))}=-92.30kJ/mol\\\Delta H^o_f_{(CaCl_2(s))}=-877.1kJ/mol\\\Delta H^o_f_{(H_2O(g))}=-285.8kJ/mol\\\Delta H^o_f_{(CO_2(g))}=-393.51kJ/mol$

Putting values in above equation, we get:

$\Delta H^o_{rxn}=[(1\times -877.1)+(1\times -393.51)+(1\times -285.8)]-[(1\times -1206.9)+(2\times -92.30)]=-164.9kJ$

Therefore the heat of reaction (ΔHrxn) for the reaction is -164.9kJ

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3 years ago

AACGTACGATCGATGCACATGCATGGCTACGC

Pachacha [2.7K]

Explanation:

if u have biology A=T and G=C

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3 years ago

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a man bought two watches for Rs 2500 each.He sold one of them at 10% . profit and the other at 4% loss.what was his gain or loss

timofeeve [1]

Answer:

Selling price of watch A and watch B= Rs. 425

Let cost price of watch A=x

Profit =10%

∴

100

110

x=425

x=386.36

Let cost price of watch B=y

Loss =10%

∴

100

y=425

y=472.22

Net cost price =x+y=858.5858

Net selling price =850

Loss%=

858.58

858.5858−850

×100=1%

Explanation:

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4 years ago

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Claudia performed a flame test in her lab. The result of her flame test is shown here.

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Answer:

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3 years ago

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