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3 years ago

What type of elements are most likely to form more than one type of ion

Chemistry

2 answers:

Mamont248 [21]3 years ago

8 0

Answer: Naming Compounds and Writing Formulas

1. The elements most likely to form more than one type of ion are the____ Transition Metals

2. The name iron (ll) indicates that a compound contains___ Iron ions with a 2+ charge

3. Alkali metals, alkaline earth metals, and aluminum all form ions with positive charges equal to___ The group number

4. In the name carbon dioxide, the prefix of the second word indicates that molecule of carbon dioxide contains___Two oxygen atoms

Explanation:

ss7ja [257]3 years ago

7 0

Metals are the type of elements that are most likely to form more than one type of ion, for instance iron can form the ion of Fe^2+ or Fe^3+.

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The density of a certain type of plastic is 0.81 g/cm3. If a sheet of this plastic is 10.0 m long, 1.0 m wide, and 1 cm thick, w

crimeas [40]

Answer: The mass of plastic sheet is $8.1\times 10^4g$

Explanation:

The plastic sheet is in the form of cuboid. To calculate the volume of cuboid, we use the equation:

$V=lbh$

where,

V = volume of cuboid

l = length of cuboid = 10.0 m = 1000 cm (Conversion factor: 1 m = 100 cm)

b = breadth of cuboid = 1.0 m = 100 cm

h = height of cuboid = 1 cm

Putting values in above equation, we get:

$V=1000\times 100\times 1=10^5cm^3$

To calculate mass of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

We are given:

Density of plastic sheet = $0.81g/cm^3$

Volume of plastic sheet = $10^5cm^3$

Putting values in equation 1, we get:

$0.81g/cm^3=\frac{\text{Mass of plastic sheet}}{10^5cm^3}\\\\\text{Mass of plastic sheet}=8.1\times 10^4g$

Hence, the mass of plastic sheet is $8.1\times 10^4g$

8 0

3 years ago

4Fe+3O2 I really have no idea how to do this.. HELP

Jlenok [28]

Reorder 4Fe and 3O2.
3O2 + 4Fe

3 0

2 years ago

A 64.4-g sample of potassium chloride was added to 200.0 g of water at 20 degrees C. Is the solution saturated, unsaturated, or

Tomtit [17]

Hey there!:

is the solution saturated , ie :

They are the ones that have reached the exact solubility coefficient.If we mix 64.4 g of KCl at 200.0 g of water at 20 º C, we'll see that the 32.2 g will dissolve and the remainder (32.2 g) will precipitate, forming the bottom body. In this case we will then have a solution saturated with background. However, if we want only the saturated solution, simply perform a simple filtration to separate the precipitate from the saturated solution.

hope this helps!

7 0

3 years ago

PLEASE HELP GUYS PLEASE!!!! I will LOVE WHOEVER HELP ME FOREVER

Vladimir79 [104]

Answer:

B. It is highly flammable.

Explanation:

Chemical properties deal with how the substance will behave when brought into contact with other substances, and usually have to do with it undergoing some kind of reaction. Flammability is a chemical property.

Density, melting point, and color are all considered physical properties.

3 0

2 years ago

Read 2 more answers

The indicator methyl red has different molecular structures at high and low pH.

Novosadov [1.4K]

Answer:

a. True

Explanation:

Methyl red is an indicator widely used in quality control of oxides as Zinc oxide in the titration with sulfuric acid.

As is used in titrations of acid-base reactions the indicator change in colour. Is red when the pH < 4.4 (Acidic Solutions) and is yellow when pH > 6.2 (Neutral-Basic solutions).

A change in colour means the structure of the indicator is changing with pH. Thus, the answer is:

6 0

3 years ago