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3 years ago

Which statements are true about Carolus Linnaeus?

Chemistry

1 answer:

USPshnik [31]3 years ago

8 0

Answer: founder of taxonomy

Explanation:

Carolus Linnaeus is a Swiss scientist that introduced the taxonomy (the formal system of classification used for biological purposes).

He first split living things into a general category called KINGDOM, then into large smaller groups called PHYLUM (for animals) and DIVISION (for plants). Each phylum or division is then broken down into CLASSES, then broken down into ORDERS, then into FAMILIES, then into GENUS, and finally into SPECIES

Thus, the taxonomy as founded by Carolus Linnaeus shows classification from highest (most general category) to the lowest level as follows:

Kingdom --> phylum/division --> class --> order --> family --> genus --> species

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Cual es la formula estructural condensada del octano??

Arlecino [84]

$CH_{3} CH_{2} CH_{2} CH_{2} CH_{2} CH_{2} CH_{2} CH_{2} CH_{3}$ o $CH_{3}(CH_{2})_{6} CH_{3}$

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3 years ago

Write three disadvantages of hard water.

frez [133]

The three disadvantages of hard water are:

1. Hard water is unsuitable for washing because soap does not readily create a lather in it.

2. Soap may react and produce, wasting the soap.

3. Due to the development of calcium and magnesium carbonates, tea kettles will get furred.

<h3>Hard water</h3>

Water that contains a lot of minerals is referred to as hard water. In limestone, chalk, or gypsum deposits, which are mostly composed of calcium and magnesium carbonates, bicarbonates, and sulphates, hard water is created as a result of percolation. A moderate health advantage from drinking hard water is possible. In industrial settings where water hardness is regulated to prevent expensive breakdowns in boilers, cooling towers, and other water-handling equipment, it can present serious issues. Hard water is frequently detected in home settings by the build-up of lime scale in kettles and water heaters as well as by the absence of foam when soap is agitated in water. Wherever there is a worry about water hardness, water softening is frequently employed to lessen the negative impacts of hard water.

write three disadvantages of hard water.

Learn more about hard water here:

brainly.com/question/20936443

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8 0

1 year ago

What is the mass, in grams, of a sample of 6.98 × 1024 atoms of magnesium (Mg)? Show your work or explain the steps that you use

CaHeK987 [17]

Hello!

* First Step: to know Avogrado's Law

We know that by the Law of Avogrado, for each mole of substance we have 6.02*10²³ atoms, if:

** Second Step: to know the molar mass of the solute

The molar mass of of magnesium = 24.30 g/mol

*** Third step: make the ratio mass / mol with atoms

1 mol we have 6.02*10²³ atoms

1 mole of Mg we have 24.30 g

Then we have:

24.30 g ------------- 6.02*10²³ atoms

x ----------------------- 6.98*10^24 atoms

$\dfrac{24.30}{x} = \dfrac{6.02*10^{23}}{6.98*10^{24}}$

multiply cross

$6.02*10^{23}*x = 24.30*6.98*10^{24}$

$6.02*10^{23}\:x = 1.69614*10^{26}$

$x = \dfrac{1.69614*10^{26}}{6.02*10^{23}}$

$\boxed{\boxed{x \approx 281.75\:grams}}\end{array}}\qquad\checkmark$

I Hope this helps, greetings ... DexteR! =)

7 0

3 years ago

How many phases does a solution have?explain

Vikki [24]

Did you perhaps mean the phase of matter? If so, then a solution has only one phase of matter: liquid. It is always almost always liquid because solutions are made up of a solvent and a solute and a solvent is always a liquid. Though, some may come in an emulsion form, but still it can be considered as liquid

4 0

4 years ago

2 2. The energy stored in a substance that can be released when the substance reacts. A. Mechanical Energy B. Thermal Energy C.

vichka [17]

Answer:

C. Chemical Energy

Explanation:

The energy that stored in the substance or in compounds is called chemical energy which released when the substance reacts.

A substance is made up of atoms and molecules and chemical energy is present in those atoms or molecules. When a chemical reaction takes place, these energy released from atoms and molecules.

Chemical energy can be released in the form of thermal energy (heat) and mechanical energy (working ability).

Hence, the correct answer is "C. Chemical Energy".

4 0

3 years ago