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3 years ago

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mage result for alz... Warm-Up Exercises for Chapter 2 - Acid-Base Reactions roblem 2.3 H2O is the acid and NH2 is the base. Exp

ress your answers as a chemical expression. = AXO O ? H2O + NH4= Submit Previous Answers Request Answer X Incorrect; Try Again; 19 attempts remaining

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laila [671]3 years ago

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Which of the following represents the correct temperature and pressure at STP?

melamori03 [73]

B is the correct answer if I remember

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4 years ago

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How many moles of chloride ions are there in 2.5 L of 5 M magnesium chloride?

castortr0y [4]

Answer:

$n_{Cl^-}=25molCl^-$

Explanation:

Hello,

In this case, since the given 5-M concentration of magnesium chloride is expressed as:

$5\frac{molMgCl_2}{L}$

We can notice that one mole of salt contains two moles of chloride ions as the subscript of chlorine is two, in such a way, with the volume of solution we obtain the moles of chloride ions as shown below:

$n_{Cl^-}=5\frac{molMgCl_2}{L}*\frac{2molCl^-}{1molMgCl_2} *2.5L\\\\n_{Cl^-}=25molCl^-$

Best regards.

4 0

3 years ago

Please help. thanks :)

sleet_krkn [62]

The correct answer would be equation 4, because there are 4 Hydrogens and 2 Oxygens on each side of the equation making it balanced.

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3 years ago

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A 4.80g piece of magnesium displaces 2.76 mL of water when it is placed in a graduated cylinder. What is the density of magnesiu

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Answer:

6

What do AIA, SAG, AFP and AMA all stand for? Select four options.

American Institute of Architects

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3 years ago

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Do all metal oxides produce alkaline solutions? explain why or why not?

ELEN [110]

Answer:

Forming acids and alkalis. Soluble metal oxides (or metal hydroxides) produce alkaline solutions. Soluble non-metal oxides produce acidic solutions. Insoluble oxides will not affect the pH of water.

Explanation:

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3 years ago