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3 years ago

Does sugar when dissolved form ions

Chemistry

2 answers:

sveticcg [70]3 years ago

7 0

Answer:

Dissolving sugar is a physical change. It is not a chemical change. So, ions will not be formed.

tatyana61 [14]3 years ago

4 0

Explanation:

Sugar will readily dissolve in water but doesn't form cations and anions in solution. That is, there are no charge carriers formed. Substances that only partially ionize into ions when dissolved in water are called weak electrolytes.

I hope it help:)

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calcium and strontium are close to one another on thw oeriodic table. what do you know about their ionization energies ,their el

Firdavs [7]

Both Ca and Sr are in Group 2 of the Periodic Table, with Sr below Ca (see image)..

Ionization energies

They are both metals, so they have relatively low ionization energies.

Sr is below Ca in the Group, so Sr has the lower ionization energy.

Electron configurations

Their electron configurations both end in ns².

For example, the electron configuration of Ca is [Kr]4s² and that of Sr is [Kr]5s².

Physical chsrscteristics:

metallic lustre
malleable
ductile
good conductors of heat and electricity

Chemical characteristics

Both metals react with

• Hydrogen to form hydrides: M + H₂ ⟶ MH₂

• Oxygen to form oxides: 2M + O₂ ⟶ 2MO

• Nitrogen to form nitrides: 3M + N₂ ⟶ M₃N₂

• Halogens to form halides: M + X₂ ⟶ MX₂

• Water to displace hydrogen: M + 2H₂O ⟶ M(OH)₂ + H₂

4 0

3 years ago

It is thought that Vitamin C might be an effective preventative

Anon25 [30]

Answer:

IF the fruit juice contains a high level of vitamin C, THEN the preventative effectiveness against common cold increases.

Explanation:

The hypothesis is a testable explanation of a scientific investigation. It aims at predicting the outcome of the experiment. One feature of the hypothesis is that it must be testable. The hypothesis is usually written in an "IF, THEN" format.

This question is regarding an experiment to test the amount of vitamin C in fruit juice. The vitamin C is thought to be an effective preventative against common cold. Hence, the hypothesis connects the effect on common cold (dependent variable) with the amount of vitamin C (independent variable). The hypothesis can be written as:

IF the fruit juice contains a high level of vitamin C, THEN the preventative effectiveness against common cold increases.

7 0

3 years ago

Any mixture that is heterogeneous on a microscopic level is a

Nadya [2.5K]

Solution is the answer.

5 0

3 years ago

What is the advantage of seeds that can be spread over a wide area?

Tema [17]

Answer:

I'm fairly sure it's D

Explanation:

If they're more spread out than they're roots in theory should have more space. Sorry if I'm wrong

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3 years ago

How many valence electrons are there in an argon atom?

dalvyx [7]

Answer:

The element argon is in column 8A and is a noble gas. Nobles gases are completely stable because their outershell is filled with all eight electrons. Argon has eight valence electrons.

4 0

2 years ago