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lora16 [44]
3 years ago
7

Student moves to a new school and refuses to leave their room on the first day to go to school.

Chemistry
1 answer:
zvonat [6]3 years ago
5 0

i would say Psychoanalysis so you need to call Frasier Crane lol


        hope it helps

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What is the molarity of a solution that contains 20 grams of salt dissolved in 3.0 L of solution? The molar mass of water is 18g
natita [175]
Number of moles :

n = mass solute / molar mass

n = 20 / 18

n = 1.111 moles

Therefore:

Molarity  =  moles solute / volume

Molarity  = 1.111 / 30 => 0.37 M
6 0
3 years ago
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Al2(SO4)3+Mg(NO3)2⟶ What would be the product(s) of this reaction? *These are NOT balanced, just look for the correct products*
Readme [11.4K]

Answer:

Al_2(SO_4)_3+3Mg(NO_3)_2\rightarrow 2Al(NO_3)_3+3MgSO_4

Explanation:

Hello there!

In this case, for the given reactants side, we infer this is a double replacement reaction because all the cations and anions are switched around as a result of the chemical change, we infer that the products side include aluminum with nitrate and magnesium with sulfate as shown below:

Al_2(SO_4)_3+Mg(NO_3)_2\rightarrow Al(NO_3)_3+MgSO_4

However, we need to balance since unequal number of atoms are present at both sides, thus, we do that as shown below:

Al_2(SO_4)_3+3Mg(NO_3)_2\rightarrow 2Al(NO_3)_3+3MgSO_4

Thus, we make 6 Al atoms, 3 S atoms, 3 Mg atoms and 30 O atoms on each side in agreement with the law of conservation of mass.

Regards!

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3 years ago
What causes interstellar dust and clouds of gas to condense into planets and stars?
aleksklad [387]
The gravitational pull
3 0
3 years ago
Classify the following reaction.
Klio2033 [76]

Answer:

Explanation:

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Which of the following is an incorrect name for an acid? A. acetic acid B. hydrocarbonate acid C. hydrocyanic acid D. sulfurous
just olya [345]

Answer:

The answer to your question is letter B

Explanation:

Incorrect name

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B. hydrocarbonate acid  This is not the name for acid but for a molecule that has hydrogen and a metal.  

C. hydrocyanic acid   This name is correct for the inorganic molecule with formula HCN

D. sulfurous acid          This name is correct and is the name of the inorganic molecule with formula H₂SO₃.

E. phosphoric acid       This name is correct for the acid with formula H₃PO₄.

5 0
3 years ago
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