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Elina [12.6K]
3 years ago
12

Write a question you have about water

Chemistry
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

How many gallons of water are on earth?

Why does salt water make you sticky and burn our eyes so bad?

Explanation:

These are just a couple questions I came up with just now

I hope that this helps

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1,000 millimeters is the same as _____
Aleksandr [31]

Answer:

1 meter

Explanation:

6 0
3 years ago
Read 2 more answers
Heat will flow from a hot object to a cold object until the objects reach A. stability. B. boiling point. C. collapse. D. equili
Aleonysh [2.5K]
The thermal energy will flow from the hotter object to the cooler object until their temperatures are equal i.e. until they reach equilibrium.

Answer:
D. equilibrium
6 0
4 years ago
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What is the mass of 2.0 moles of sodium
prisoha [69]

Answer:

The molar mass of Na (sodium) is 23.0 g/moles

Explanation:

3 0
4 years ago
Read 2 more answers
NH4NO3 + Na3PO4 → (NH4)3PO4 + NaNO3
Papessa [141]

Based on the equation of the reaction and the data provided,

  • NH4NO3 is the limiting reactant
  • mass of Na3PO4 left is 29.375 g
  • 18.75 g of (NH4)3PO4 is produced
  • 31.875 g of NaNO3 is produced

<h3>What are limiting reactants?</h3>

A limiting reactant is a reactant which is used up in a reaction after which the reaction stops.

In the given reaction:

3 NH4NO3 + Na3PO4 → (NH4)3PO4 + 3 NaNO3

The limiting reactant is determined from the stoichiometry of the eqaution.

Moles of reactant = mass/molar mass

Molar mass of NH4NO3 = 80 g/mol

Molar mass of Na3PO4 = 165 g/mol

Molar mass of (NH4)3PO4 = 150 g/mol

Molar mass of NaNO3 = 85 g/mol

From the equation of the reaction, 240 g (3 × 80) of NH4NO3 is required to react with 165 g of Na3PO4

There are only 30.0 g of NH4NO3 reacting with 50.0 g of Na3PO4

30 g of Na3PO4 will react with 30 × 165/240 = 20.625 g of Na3PO4

Therefore, NH4NO3 is the limiting reactant

Na3PO4 is the excess reactant

mass of Na3PO4 left = 50 - 20.625

mass of excess reactant left = 29.375 g

moles of NH4NO3 in 30 g = 30/80 = 0.375 moles

3 moles of NH4NO3 produces 1 mole of (NH4)3PO4

0.375 moles of NH4NO3 will produce 0.375 × 1/3 = 0.125 moles of (NH4)3PO4

mass of 0.125 moles of (NH4)3PO4 = 0.125 × 150

mass of (NH4)3PO4 produced = 18.75 g of (NH4)3PO4

3 moles of NH4NO3 produces 3 moles of NaNO3

0.375 moles of NH4NO3 will produce 0.375 moles of NaNO3

mass of 0.375 moles of NaNO3 = 0.375 × 85

mass of NaNO3 produced = 31.875 g of NaNO3

Learn more about limiting reactant at: brainly.com/question/24945784

4 0
2 years ago
Janelle is observing a sample of matter. She notes that it is a shiny silver-colored solid, has a
Lapatulllka [165]

Janelle is observing Physical properties.

Why?

The properties of matter can be classified as follows:

  • Extensive and Intensive: <em>Extensive</em> properties <u>depend on the amount of matter</u> involved in the measuring (e.g. mass), and <em>intensive</em> properties<u> do not depend on the amount of matter </u>(e.g. density, conductivity).
  • Physical and Chemical: <em>Physical </em>properties <u>do not involve a change in the nature of the substance that is being measured</u> (e.g. color, length), while <em>Chemical</em> properties <u>involve a change in the nature of the substance when they are measured</u> (e.g. reactivity).

The properties that Janelle observed are: Color (intensive, physical), mass (extensive, physical), heat conductivity (intensive, physical), and electrical conductivity (intensive, physical). All these properties are Physical properties.

Have a nice day!

6 0
4 years ago
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