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Sholpan [36]
3 years ago
7

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent? combustion decompositio

n single replacement synthesis NextReset
Chemistry
1 answer:
horsena [70]3 years ago
4 0
The answer is D, synthesis.
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10 grams of sodium hydroxide, NaOH, is dissolved in 0.25 liters of solution. Determine the molarity (M).
lozanna [386]

Answer:

1M

Explanation:

The molarity of a substance is defined as the number of moles of the substance divided by how many liters the solution is. NaOH has a molar mass of about 40 grams, meaning that 10 grams of it would be 0.25 moles. 0.25/0.25= a molarity of 1.

Hope this helps!

3 0
3 years ago
What is the pH of a 1.7 × 10⁻⁴ M HClO₄ solution?
Mamont248 [21]
Ph= -log[h30]

Ph= -log[1.7x10^-4]

pH= 3.77

pH is acidic
3 0
3 years ago
46. The number of orbitals in the sub-levels increases by even numbers.<br> a. TRUE<br> b. FALSE
frosja888 [35]

Answer:

It's true.

Explanation:

In sub-energy level : number of orbitals

  • s : 2
  • p : 6
  • d : 10
  • f : 14

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6 0
3 years ago
How does the amount of energy coming from the energy source (low vs. high) affect the amount of electrical energy created.
vfiekz [6]

Answer:The environmental problems directly related to energy production and   Electricity is a secondary energy source that is generated  producedfrom primary energy sources:

hope that helps im new so have a good day (:

Explanation:

6 0
2 years ago
How many moles are there in 814.504 g of H2O?
earnstyle [38]
First you need to calculate the molar mass of H2O. To do that, look at the periodic table and add up the AMUs (atomic mass units) 

H = 1.01
O = 16.0 

1.01 • 2 + 16.0 = 18.02 

Next, use stoichiometry to convert grams into moles. To do that, divide 814.504g by the number of grams in one mole of H2O.

814.504 ÷ 18.02 = 45.2 moles 

There are 45.2 moles in 814.504 grams of H2O.
6 0
3 years ago
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