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RSB [31]
3 years ago
8

Which of the following is the best example of an object absorbing light? A black sweater in the sun

Chemistry
1 answer:
Lena [83]3 years ago
7 0
The answer would be A
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Sodium is a compound<br> O True<br> or<br> O False
MA_775_DIABLO [31]

Answer:

i think false.

Explanation:

tell me if this is wrong

6 0
3 years ago
Read 2 more answers
How do ionic compounds and molecular compounds behave<br> differently in solution?
Lelu [443]

Answer : Molecular compounds dissolve in water by means of dipole-dipole attractions and hydrogen bond attractions. These attractions between the molecular compound and water don't form ions when a molecular compound dissolves.

Explanation: I hoped that helped,

6 0
3 years ago
In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) + 2
djyliett [7]

Answer:

-100.125

Explanation:

We are given

          CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l)    △H = -890.0 kJ/mol

The given information is for complete reaction

we have 1.8grams of Methane

Molar mass of CH4 = 16  

No of moles of Methane = 1.8/ 16

                                          = 0.1125

So the amount of the heat will be released from the amount of the methane

Q = No of moles*( -890.0 kJ/mol)

  = 0.1125*(-890)

   = -100.125kJ/mole

Therefore the amount of Energy released from 1.8 grams of methane is equal to -100.125

3 0
3 years ago
How to solve a balanced equation
geniusboy [140]

Explanation:

To balance a chemical equation, there are so many approaches to solve the problem.

A balanced chemical equation is one that obeys the law of conservation of matter.

According to this law "matter is neither created nor destroyed by atoms are just rearranged in chemical reaction".

This implies implies that equal number of atoms must be on both sides of the equation.

      There are two main approaches to balancing chemical equation;

  • Inspection
  • mathematical equation

We can inspect the equation and affix the proper coefficients to combining species.

Mathematically, we establish simple solvable algebraic equations to find the number of respective coefficients that will balance the equation:

 For example:

          H₂     +      O₂    →     H₂O

mathematically;

           aH₂     +      bO₂    →     cH₂O

  conserving:

         H :   2a  =  2c

         O:    2b  = c

 let a = 1

      c = 1

      b = \frac{1}{2}

multiply by 2 to give;

   a = 2, b = 1 , c= 2

               2H₂     +      O₂    →     2H₂O

learn more:

Balanced equation brainly.com/question/9325293

#learnwithBrainly

 

7 0
3 years ago
104. Fill in the blanks to complete the table.
iren2701 [21]

Explanation:

Just a few things to remember:

  • # of neutrons  = Mass number - # protons
  • Mass number = # protons + # neutrons
  • Atomic Number = # of protons
  • # of electrons = # of protons - charge on the atom
  • Symbol - use the atomic number to find the element in the periodic table

3 0
3 years ago
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