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zubka84 [21]
3 years ago
12

Why was the tablet crushed organic chemistry?

Chemistry
1 answer:
Yuki888 [10]3 years ago
8 0
 <span>maximizes the surface area.</span>
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What is the difference between ionic and covalent bonding?
mr Goodwill [35]

In an ionic bond, one atom essentially donates an electron to stabilize the other atom. The atoms in an ionic bond have different electronegativity values from each other.

While in a covalent bond, the atoms are bound by shared electrons and the electronegativity values are the same.

8 0
4 years ago
What causes the convection cell to turn left at point B?
Assoli18 [71]

Answer:

Point B is in Between two convection, and is just below a ridge . This cause the cell to turn left because the flow of fluid hits the bottom of the crust this is the best I can do to Help you understand.

6 0
3 years ago
alculate the standard enthalpy of formation of ethanoic acid given that the standard enthalpy of combustion for carbon is –394 k
agasfer [191]

Answer:

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

Explanation:

C(g)+O_2(g)\rightarrow CO_2(g),\Delta H_{1, comb}=-394 kJ/mol...[1]

H_2(g)+\frac{1}{2}O_2(g)\rightarrow H_2O(l),\Delta H_{2, comb}=-286 kJ/mol..[2]

CH_3COOH(l)+2O_2(g)\rightarrow 2CO_2(g)+2H_2O(l),\Delta H_{3, comb}=-876 kJ/mol..[3]

The standard enthalpy of formation of ethanoic acid :

2C(g)+2H_2(g)+O_2(g)\rightarrow CH_3COOH, \Delta H_{4}=?..[4]

Using Hess's law to calculate :

2 × [1] + 2 × [2] - [3] = [4]

\Delta H_4=2\times (-394 kJ/mol)+2\times (-286 kJ/mol) - (-876 kJ/mol)

=\Delta H_4=-484 kJ/mol

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

5 0
3 years ago
6 Select the correct answer. A substance is followed by the symbol (l) in a chemical equation. What does the symbol represent?
allsm [11]

Answer:

B. The substance is in the liquid state.

Explanation:

The symbol (l)  in a chemical equation represents that the substance is in liquid state which is one of the physical states of a chemical substance.

4 0
3 years ago
Which of the following is true about an atom of silver
kati45 [8]

Answer:

where is options.

tell me

4 0
4 years ago
Read 2 more answers
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