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2 years ago

What is the three-dimensional shape of the molecule this Lewis structure H — Be — H

Chemistry

2 answers:

ra1l [238]2 years ago

7 0

A: Bent

Hydrogen needs 2 electrons and Beryllium needs 8

kipiarov [429]2 years ago

6 0

Answer: The three dimensional shape of H-Be-H molecule is Linear.

Explanation: Be is a second group metal with only two valence electrons and H has only one valence electron. H wants to complete two electrons in its valence shell and for this each H forms a single covalent bond with central Be atom. As only two atoms(H atoms) are bonded to central Be atom and it does not have any lone pair of electrons, it's Linear in shape. The bond angle is 180 degree.

If you see any molecule where only two atoms are bonded to the central atom and the central atom doesn't have any lone pair of electrons then it must be Linear in shape.

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Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of potassium hydroxide and nickel

Gnom [1K]

<u>Answer:</u> The net ionic equation is written below.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of nickel (II) acetate and potassium hydroxide is given as:

$Ni(CH_3COO)_2(aq.)+2KOH(aq.)\rightarrow 2CH_3COOK(aq.)+Ni(NO_3)_2(s)$

Ionic form of the above equation follows:

$Ni^{2+}(aq.)+2CH_3COO^-(aq.)+2K^+(aq.)+2OH^-(aq.)\rightarrow 2CH_3COO^-(aq.)+2K^+(aq.)+Ni(OH)_2(s)$

As, acetate and potassium ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

$Ni^{2+}(aq.)+2OH^-(aq.)\rightarrow Ni(OH)_2(s)$

Hence, the net ionic equation is written above.

4 0

2 years ago

Wharis the mass in grams of 2.000 mol of oxygen atoms?

Alika [10]

Answer:

32.00 g. Hope this helps! PLEASE GIVE ME BRAINLIEST!!!!! =)

8 0

2 years ago

Which of the following is a balanced chemical equation?

True [87]

Answer:

equation number 3 is balanced.

hope it helps ☺️!

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2 years ago

An average human being has about 5.0 L of blood in his or her body. If an average person were to eat 37.7 g of sugar (sucrose, ,

Viktor [21]

Answer: 0.0220275 M

Explanation:

So, we are given the following data or parameters which are going to help in solving this particular Question/problem.

=> Averagely, we have the volume = 5.0 L of blood in human body .

=> Mass of sugar eaten = 37.7 g of sugar (sucrose, 342.30 g/mol).

Therefore, the molarity of the blood sugar change can be calculated as below:

The molarity of the blood sugar change = (1/ volume) × mass/molar mass.

Thus, the molarity of the blood sugar change = (1/5) × 37.7/342.30 = 0.0220275 M.

6 0

2 years ago

The amount of matter in an object is known as

zavuch27 [327]

Mass......................

4 0

2 years ago

Read 2 more answers