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valkas [14]
3 years ago
12

With regard to the pH scale, a solution with a pH

Chemistry
1 answer:
worty [1.4K]3 years ago
5 0
I believe the correct response is A. A solution with a pH close to 14 is considered a strong base.
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Which statement correctly compares hydrogen bonding behavior in the gaseous, liquid and
Ivenika [448]

Answer:

B.brief in water vapor, fixed in liquid water, and nonexistent in ice crystals.

Explanation:

Water's States: Gas, Liquid, and Solid

In liquid water, hydrogen bonds are constantly formed and broken as the water molecules slide past each other. The breaking of these bonds is caused by the motion (kinetic energy) of the water molecules due to the heat contained in the system.

Hope It Helps You

5 0
3 years ago
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What is the name of the compound with the formula NaHCO3 ?
Marianna [84]

Answer:

Sodium bicarbonate

Explanation:

Sodium bicarbonate ( NaHCO₃ ) -

Sodium bicarbonate , according to the IUPAC nomenclature , its name is sodium hydrogen carbonate ,and in common terms also refereed to as baking soda .

It is a white crystalline solid , it is basic in nature .

<u>The cation and anion of this salt are the sodium ion ( Na⁺)  and the anion bicarbonate anion (HCO³⁻) .</u>

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5 0
3 years ago
5. In an oxyacetylene welding torch, acetylene (C2H2) burns in pure oxygen with a very hot flame. The reaction is: 2 C2H2 + 5 O2
gulaghasi [49]

11.375 g ethylene is consumed if 35.0 grams of oxygen is allowed to react and 7.875 ml of water will be produced when the 35.0 grams of oxygen is allowed to react.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 ×10^{23} of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

According to the chemical equation for the combustion of ethylene, 5

moles of oxygen are required to react with 2 moles of ethylene, hence

m_{_C_2_H_2}  = 35gX \frac{1 mol}{(2 \;X\; 16)g } X \frac{2 mol}{(5\;mol )} X \frac{26g}{1 mol }

m_{_C_2_H_2} = 11.375 g

Similarly, 5 moles of oxygen are required as a reactant to produce 2 moles of water, thus

m_{_H_2_O} = 35gX \frac{1 mol}{(2 \;X\; 16)g } X \frac{2 mol}{(5\;mol )} X \frac{18g}{1 mol }

m_{_H_2_O} = 7.875 g

Given that the density of water is 1.0g ml^{-1}, therefore

Density = \frac{Mass \;of \;water}{Volume \;of \;water}

Volume \;of \;water = \frac{7.875}{1.0 g ml^{-1}}

The volume of water = 7.875 ml

Learn more about moles here:

brainly.com/question/8455949

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5 0
2 years ago
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Which element has two valence electrons?
Colt1911 [192]

Answer:

It is A) Calcium

Explanation:

Calcium has an electronic configuration of 2,8,8,2

6 0
3 years ago
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Which of the following nuclei would be the most stable?
ValentinkaMS [17]
Ten protons would be Neon, but the most stable? I'd have to say 12 neutrons in contrast to the 10 protons.  Not too negative in balance.
6 0
4 years ago
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