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4 years ago

Do you think creativity can contribute to scientific inquiry and investigation? Provide an example and explain your answer.

1 answer:

8 0

Creativity is often defined as the ability to generate innovative ideas and manifest them from thought into reality. Any science experiment that is being done for the first time is creative because it's an innovative idea that's being transformed into reality by creating/doing the experiment.

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Question 1 Is the following question true or false All of today's continents were part of one large land mass 225 million years

cupoosta [38]

Question 1 is true because it was called Pangea

Question 2 is false because it had a lot of impact on the distribution of species, before the moving continents animals could roam where ever they want but after the splitting of the continents the species were stuck in one place because water separated other continents and land species cant swim.

7 0

3 years ago

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Standard heats of formation for reactants and products in the reaction below are provided. 2 HA(aq) + MX2(aq) → MA2(aq) + 2 HX(l

Ira Lisetskai [31]

Answer : The standard enthalpy of reaction is, -318.618 kJ

Explanation :

Enthalpy change : It is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as $\Delta H^o$

The equation used to calculate enthalpy change is of a reaction is:

$\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f(product)]-\sum [n\times \Delta H^o_f(reactant)]$

The equilibrium reaction follows:

$2HA(aq)+MX_2(aq)\rightleftharpoons MA_2(aq)+2HX(l)$

The equation for the enthalpy change of the above reaction is:

$\Delta H^o_{rxn}=[(n_{(MA_2)}\times \Delta H^o_f_{(MA_2)})+(n_{(HX)}\times \Delta H^o_f_{(HX)})]-[(n_{(HA)}\times \Delta H^o_f_{(HA)})+(n_{(MX_2)}\times \Delta H^o_f_{(MX_2)})]$

We are given:

$\Delta H^o_f_{(HA(aq))}=-357.05kJ/mol\\\Delta H^o_f_{(MX_2(aq))}=69.602kJ/mol\\\Delta H^o_f_{(MA_2(aq))}=-63.958kJ/mol\\\Delta H^o_f_{(HX(l))}=-449.579kJ/mol$

Putting values in above equation, we get:

$\Delta H^o_{rxn}=[(1\times -63.958)+(2\times -449.579)]-[(2\times -357.05)+(1\times 69.602)]=-318.618kJ$

Thus, the standard enthalpy of reaction is, -318.618 kJ

6 0

3 years ago

DUPLICATE

Svet_ta [14]

As in relative abundance , one is take reference
So,
One is taken as 1:
Other is subtracted from it:
(1 - 0.6011)(atomic mass of Ga-71)

Equation can be written as:
69.723 = (0.6011)(68.9256) + (1-0.6011)x 
(1-0.6011) is the percentage abundance of Ga-71 expressed in percentage: 

Solving for x 
28.2918 = 0.3989 x 
x= 70.9246.......

7 0

3 years ago

Calculate how many grams of BeCl2 are required to produce 0.52 grams of MnCl2

Leokris [45]

Answer:

65.0cp

Explanation:

7 0

3 years ago

3) Which element has the lowest electronegativity value? A) F B) Fr C) Cr D) Cl

Nadya [2.5K]

Answer:

ur mom jk i would say fr

Explanation:

3 0

4 years ago

Read 2 more answers