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Oksanka [162]
2 years ago
15

Hello comets~help me with these questions ​

Chemistry
2 answers:
Mrrafil [7]2 years ago
8 0

Answer:

Explanation:

3.

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-)

4.

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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Explanation: brainliest?

7 0
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What mass of glucose would you need (in g) to have 0.8 mol, given that the molar mass of glucose is 180 g mol-1?
Verizon [17]
<h3>Answer: 144 g</h3>

Explanation:

  Mass of glucose = moles × molar mass

∴ Mass of glucose = 0.8 mol × 180 g mol⁻¹

                               =  144 g

∴ the mass of glucose you need to have 0.8 mol of glucose = 144 g

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Which one is an accurate description of an erosion?
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the process of eroding or being eroded by wind, water, or other natural agents

6 0
3 years ago
What are diatomic molecules and are they compounds? PLEASE ANSWER ASAP!!
Fantom [35]

Answer:

Diatomic molecules consist of two atoms that are chemically bonded. The two atoms can be the same or different chemical elements. As for whether or not they are compounds, there is not technically an answer. This is because all compounds are molecules, but not all molecules are compounds. For example diatomic molecules that comprise the chemical compounds nitric acid, carbon monoxide, and hydrogen chloride are made up of two different elements.  As you can see, most diatomic molecules are not made up of the same kind of elements and not every diatomic molecule comprises a chemical compound.

hope this helps :)

Explanation:

4 0
3 years ago
A 1 mL pipette delivers a measured volume of .98 mL (calculate the percentage error)
Natalija [7]

Answer:

2%

Explanation:

.98 is 98% of one and therefore they are missing 2%

4 0
3 years ago
Read 2 more answers
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