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natulia [17]
3 years ago
15

An OH group attached to a hydrocarbon is called a _________ group whereas ______________ is a polyatomic ion with a charge of __

_____.

Chemistry
1 answer:
rodikova [14]3 years ago
3 0

Answer:

sijshsjdjdjdjdjakskskkskzjzz

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One of the most worrisome waste products of a nuclear reactor is plutonium
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One of the most worrisome waste products of a nuclear reactor is plutonium 239 (239Pu). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus (4He +... Q: One of the most worrisome waste products of a nuclear reactor is plutonium 239 (239Pu<span>).</span>
4 0
3 years ago
An orbital is a region in an atom where there is a high probability of finding
antiseptic1488 [7]

Answer: Electron

Explanation:

An orbital is a region in an atom where there is a high probability of finding an electron.

7 0
3 years ago
Atmospheric pressure at the summit of mount everest is about one third the pressure at sea level, which is 760 mm hg. if oxygen
vichka [17]
Atmospheric pressure at sea level is 760 mmHg.
We have been told that at the summit the pressure is only one third the pressure at sea level.
Then the pressure at the mountain top is \frac{760}{3} mmHg
Air is made of a mixture of gases. the pressure that each gas exerts individually contributes to the total pressure of the system. The pressure that each gas exerts is the partial pressure of that gas which depends on the mole fraction of that gas or percentage composition of the individual gas.
Partial pressure of Oxygen - total pressure x percentage composition
Therefore pO₂ - \frac{760 * 0.21}{3} = 53.2 mmHg
Answer is 53 mmHg
6 0
3 years ago
Read 2 more answers
How do you count the number of elements in a compound?
kotegsom [21]

Answer:

The number of elements in a compound is counted by identifying and counting the chemical symbols represented in the chemical formula

A compound is a substance that is a mixture of more than one elements.

Compounds are made of two or more elements. These elements are represented by their symbols. These symbols can be identified and the number of elements represented by these symbols are counted.

For example, in the compound H_2OH

2

O :

H represents Hydrogen

O represents Oxygen

The elements in Water ( H_2OH

2

O ) are Hydrogen and Oxygen

Therefore, the number of elements in H_2OH

2

O is 2

Also in, NaClNaCl

The elements are Sodium(Na) and Chlorine(Cl)

There are two elements in NaCl

Hence, the number of elements in a compound is counted by identifying and counting the chemical symbols represented in the chemical formula

Learn more here: brainly.com/question/17571315

5 0
2 years ago
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution before the addition of any HNO3.
alex41 [277]

Answer:

pH=11.12

Explanation:

Hello,

In this case, ammonia dissociation is:

NH_3(aq)+H_2O(l)\rightleftharpoons NH_4^+(aq)+OH^-(aq)

So the equilibrium expression:

Kb=\frac{[NH_4^+][OH^-]}{[NH_3]}

That in terms of the reaction extent and the initial concentration of ammonia is written as:

1.8x10^{-5}=\frac{x*x}{0.10M-x}

Thus, solving by using solver or quadratic equation we find:

x=0.00133M

Which actually equals the concentration of hydroxyl ion, therefore the pOH is computed:

pOH=-log([OH^-])=-log(0.00133)=2.88

And the pH from the pOH is:

pH=14-pOH=14-2.88\\\\pH=11.12

Best regards.

6 0
3 years ago
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