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puteri [66]
3 years ago
10

On each blank, write the CHEMICAL SYMBOL FOR THE ION

Chemistry
1 answer:
yaroslaw [1]3 years ago
6 0

Answer:

A sulfur ion with a charge of -2 = S⁻²

An iron ion with a charge of +3 = Fe⁺³

A chlorine ion with a charge of -3 = Cl⁻³

Explanation:

Anion:

Anion are formed when an atom  gain the electrons.

Representation:

The anion of an atom is showed by adding the number of electrons gained by atom with negative sign as superscript on the symbol of an atom.

Cation:

Cation is formed when an atom lose the electron.

Representation:

The cation of an atom is showed by adding the number of electrons lose by an atom with positive sign as superscript on the symbol of an atom.

A sulfur ion with a charge of -2 = S⁻²

An iron ion with a charge of +3 = Fe⁺³

A chlorine ion with a charge of -3 = Cl⁻³

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What types of matter could be separated by physical methods?
rewona [7]

I believe the correct answer to this question is:

“Mixtures”

 

By definition, mixtures are combination of substances which are not really chemically combined and hence separable by physical means. There are two types of mixtures, homogeneous and heterogeneous, both are also separable by physical means.

<span>This is as opposed to Compounds which are chemically bonded and cannot be separated by physical means.</span>

4 0
4 years ago
How are science and technology related
KatRina [158]

There is no answer, science is about empirical knowledge, technology is the sum of techniques, skills, methods, and processes. I do not believe that you will find a answer for that.

7 0
4 years ago
Question 1 (Multiple Choice Worth 2 points)
Nookie1986 [14]

The scientific models are used because they allow scientists to make predictions and make it easier for scientists to avoid using data. option A and C is correct.

<h3>What are scientific models?</h3>

The scientific models are those which is given by scientists to allow them to make prediction about anything particular on which they are working or making research for it some examples are plum pudding model for an atom and bohr's model of an atom etc.

The biggest advantage is that scientists do not have to check the given data which are written into books they can perform their experiment and can conclude the data by performing experiment.

Therefore, scientific models are used because they allow scientists to make predictions and make it easier for scientists to avoid using data. option A and C is correct.

Learn more about scientific models, here:

brainly.com/question/1622233

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7 0
2 years ago
How many moles of Cs are contained in 3 moles of Cs3PO4?
Alenkinab [10]

Answer:

\boxed {\boxed {\sf 9 \ moles \ Cs}}

Explanation:

We are given the compound: Cs₃PO₄

According to the formula, 1 mole of cesium phosphate contains 3 moles of cesium, 1 mole of phosphate, and 4 moles of oxygen.

Therefore, there are 3 moles of cesium for 1 mole of cesium phosphate.

\frac {3 \ mol \ Cs}{1 \ mol \ Cs_3PO_4}

We want to calculate the moles of cesium in 3 moles of cesium phosphate, so we multiply the ratio by 3.

3 \ mol \ Cs_3PO_4 *\frac {3 \ mol \ Cs}{1 \ mol \ Cs_3PO_4}

3 *\frac {3 \ mol \ Cs}{1 }= 9 \ mol \ Cs

3 moles of cesium phosphate contains <u>9 moles of cesium.</u>

6 0
3 years ago
The value of the equilibrium constant for a reaction
quester [9]

Answer:

a. changes with temperature.

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the equilibrium constant in terms of the Gibbs free energy of reaction and the temperature of the system:

lnK=-\frac{\Delta G}{RT}

It is possible to figure out that the equilibrium constant varies as temperature does, not only on the aforementioned definition, but also in the Gibbs free energy as it is also temperature-dependent. Therefore, the appropriate answer is a. changes with temperature.

Best regards!

6 0
3 years ago
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