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4 years ago

Can someone explation for me ? I can’t understand. Thanks

Chemistry

1 answer:

jarptica [38.1K]4 years ago

4 0

Answer:

2 Nitrogen

Explanation:

This is because it says Diammonium Hydrogen Phosphate. Here. (NH4)3PO4 is one way to write this. However, another way to write this is (NH4)2HPO4. There should be in fact two ammonium groups, NH4 and 1 Hydrogen to get 3+ charge to balance the 3- charge from the Phosphate.

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If you want to promote critical reasoning and analysis among teenagers, be sure to go over these debate topics for teens and choose the ones that you think will suit their interests best. An interesting topic can help students to learn how to express their point of view and understand that it is valued. All in all, teens are about to enter the adult world, critical thinking and research will help them on their journey, and each school has the resources necessary for their development.

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7 0

4 years ago

Maria formed when asteroids punctured the moon's surface ,allowing magma to bleed out and create?

dlinn [17]

The answer that best completes the statement above is EXTENSIVE LAVA FLOW. Maria is the name that refers to an asteroid family. And this has punctured the surface of the moon which created magma to bleed out and resulted in an extensive lava flow. Hope this answer helps.

5 0

3 years ago

Read 2 more answers

A small crystal of the slightly soluble salt, CaSO4, dissolves in a solution of calcium sulfate. The original solution must have

xz_007 [3.2K]

It has to be dilute since the crystal dissolved and unsaturated for the same reason so B

3 0

3 years ago

Read 2 more answers

What is the main use of Cellulosic Ethanol?

KonstantinChe [14]

Explanation:

Cellulosic ethanol is ethanol (ethyl alcohol) produced from cellulose (the stringy fiber of a plant) rather than from the plant's seeds or fruit. It can be produced from grasses, wood, algae, or other plants. It is generally discussed for use as a biofuel.

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2 years ago

If 4.35 grams of zinc metal react with 35.8 grams of silver nitrate, how many grams of silver metal can be formed and how many g

vaieri [72.5K]

The balanced chemical reaction is written as:

<span>Zn + 2AgNO3 = Zn(NO3)2 + 2Ag

To determine the grams of silver metal that is being produced, it is important to first determine which is the limiting reactant and the excess reactant from the given initial amounts. We do as follows:

4.35 g Zn ( 1 mol / 65.38 g ) ( 2 mol AgNO3 / 1 mol Zn ) = 0.1331 mol AgNO3 needed
35.8 g AgNO3 ( 1 mol / 169.87 g ) ( 1 mol Zn / 2 mol AgNO3 ) = 0.1054 mol Zn needed

Therefore, the limiting reactant would be the zinc metal since it would be consumed completely in the reaction. The excess amount of AgNO3 would be:

0.2107 mol AgNO3 - 0.1331 mol AgNO3 = 0.0776 mol AgNO3 left ( 169.87 g / 1 mol ) = 13.19 g AgNO3 left

0.0665 mol Zn ( 2 mol Ag / 1 mol Zn) ( 107.9 g / 1 mol) = 14.3581 g Ag produced</span>

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4 years ago