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3 years ago

How do I cook eggs? Please tell me

2 answers:

8 0

First pre heat the pan put oil in the pan then crack the egg on the pan and if ur scrambling play around with it for about 1 and a half minutes

svetoff [14.1K]3 years ago

3 0

You just throw them on the pan with the flame all the way up it will be done in a second !

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What is the enthalpy change for this reaction?

Mrrafil [7]

Answer:

Do you have a picture

or can you state the reaction

5 0

3 years ago

What is the difference between exergonic and exothermic reactions?

Tresset [83]

Answer:

An exergonic reaction is a type of chemical reaction that releases free energy to the surroundings. The final state of this reaction is less than its initial state. ... “Exothermic” literally means “outside heating” while “exergonic” literally means “outside work.”

Explanation:

If this helped you, please consider me for brainly!

Have a happy day <3 Miss Hawaii

8 0

3 years ago

Read 2 more answers

what is the mass of a sample of o2 gas, which has a pressure of 740mmhg, at a temperature of 25c, in a volume of 250.l

lions [1.4K]

From PV=nRT whereby n= mass per molar mass therefore PV=mRT over Mr making subject m it will be m =PV over RT substuting the above data 25+273 in kelvin 298k then m=740x 250/ 0.0821 x 298 multiply and divide the above eqn u will get the answer

5 0

3 years ago

What is the empirical formula for a compound that is 24.7 % calcium, 1.20 % hydrogen, 14.8 % carbon, and 59.3 % oxygen? *

goldfiish [28.3K]

Answer:

$C_2H_2O_6Ca$

Explanation:

Here we are given that the percentage of ,

Calcium = 24.7%
Hydrogen = 1.20%
Carbon = 14.8%
Oxygen = 59.3%

And we need to find out the Empirical formula of the compound .

Firstly divide the given percentage by the atomic mass of the compound . Here this is followed in the fourth column of the table , which will give the relative number of atoms .
Secondly , divide the value obtained by the smallest value among them .Say if we got the relative number of atoms as 4 , 3 and 2 , then divide all three numbers by 2 . ( followed in 5th column below .)
Finally write the Empirical formula of the compound by writing the ratio obtained as the subscript of respective compounds .

Let's make a table ,

$\boxed{\begin{array}{c|c|c|c|c} \underline{\bf Element} & \underline{\bf Percentage} & \underline{\bf Atomic \ Weight } &\underline{\bf No. \ of \ atoms_{relative} } &\underline{\bf Ratio } \\\\ \sf Ca & \sf 24.7 &\sf 40 &\sf \dfrac{24.7}{40}=0.6 &\sf \dfrac{0.6}{0.6}=1 \\\\\sf H &\sf 1.20 &\sf 1 &\sf \dfrac{1.20}{1}=1.20&\sf \dfrac{1.20}{0.6}=2\\\\\sf C &\sf 14.8 &\sf 12&\sf\dfrac{14.8}{12}=1.23&\sf \dfrac{1.23}{0.6}=2\\\\\sf O &\sf 59.3 &\sf 16 &\sf\dfrac{59.3}{16}=3.7&\sf \dfrac{3.7}{0.6}=6 \end{array}}$

Therefore we got the ratio of Ca , H , C and O as 1:2:2:6 . Therefore the Empirical formula of the compund will be ,

$\longrightarrow\underline{\boxed{\bf Empirical \ formula = C_3H_2O_6 Ca }}$

6 0

3 years ago

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Table salt has the chemical formula NaCl. Table sugar has the chemical formula C12H22011. Which of the following is trueboth com

Furkat [3]

There are 2 possible correct answers. Those answers are A and C because atoms "fuse together" by sharing electrons, and both compounds react to water, as they both dissolve in it. I would choose C as my answer, though.

6 0

4 years ago

Read 2 more answers