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2 years ago

Hello comets~help me with these questions

Chemistry

2 answers:

Mrrafil [7]2 years ago

8 0

Answer:

Explanation:

Brine is a concentrated solution of sodium chloride. Strictly speaking, sodium chloride does not exist in the solution as it completely dissociates into Na+ and Cl- in water.

Other ions that may exit include Potassium (K+), Magnesium (Mg++), Calcium (Ca++), Bromide (Br-), Iodide (I-)

The only halide of Beryllium that is ionic is BeF2 while other halides like BeCl2, BeBr2 and BeI2 are highly covalent.

Beryllium halides are mostly covalent due to smaller size and relatively high charge on Be+2 ion.

Another fun fact about Beryllium Floride is that it exists as a glass in solid state, with four-coordinate Be(2+) tetrahedral centers and two-coordinate fluoride centers.

Vadim26 [7]2 years ago

4 0

Impurities of brine solution

calcium chloride
calcium sulphate
magnesium chloride
sodium sulphate

Characteristics of halides of beryllium

covalent bond
does not conduct electricity
In organic solvents, it is soluble.

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What are the advantages of using a computer over a graphing calculator

andrezito [222]

The answer to this question is:

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3 years ago

Hydrogen bond is an example for? (PLEASE HELP!)

zlopas [31]

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3 years ago

The element californium (cf) sells for $1000 per µg. assuming 6.02 x 1023 atoms of cf have a mass of 251 grams, how many atoms o

saveliy_v [14]

Answer:- $2.40*10^1^0atoms$

Solution:- It is a simple unit conversion problem. We could solve this using dimensional analysis.

We know that, 1 US dollar = 100 cents

1 cent = 1 US penny

So, 1 US dollar = 100 US pennies

$1g=10^6\mu g$

Let's make the set up starting with 1 penny as:

$1penny(\frac{$1}{100pennies})(\frac{1\mu g}{$1000})(\frac{1g}{10^6\mu g})(\frac{6.02*10^2^3atoms}{251g})$

= $2.40*10^1^0atoms$

Therefore, we can bye $2.40*10^1^0atoms$ of Cf in one US penny.

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3 years ago

Are plants and animal pH sensitive?

Rudiy27

Answer:

Plants and animals are pH sensitive. The growth of plants is dependent on the nature of the soil. If the pH of the soil is greater than 7 and is alkaline, then the plants cannot grow in the soil.

Explanation:

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3 years ago

Which of the following is an element?

Kryger [21]

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3 years ago

Hello comets~help me with these questions ​

Hello comets~help me with these questions