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2 years ago

What words can you spell isotherm periodic table

Chemistry

1 answer:

AlladinOne [14]2 years ago

5 0

Explanation:

The periodic table of elements has a rich diverse number of elements. Every element on the table is arranged based on their atomic numbers into their respective groups and columns.

The coining of words from the table is done creatively by combining symbols of elements.

Here are some of the world list:

TaXEs , TeAcH ,TeAm , TeTaNUS , CoW,, CoVEr COY

learn more:

Periodic table brainly.com/question/2014634

#learnwithBrainly

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Calculate the molality of a solution that contains 51.2 g of naphthalene, C10H8, in 500 mL of carbon tetrachloride. The density

PtichkaEL [24]

<u>Answer:</u> The molality of naphthalene solution is 0.499 m

<u>Explanation:</u>

Density is defined as the ratio of mass and volume of a substance.

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$ ......(1)

Given values:

Volume of carbon tetrachloride = 500 mL

Density of carbon tetrachloride = 1.60 g/mL

Putting values in equation 1, we get:

$\text{Mass of carbon tetrachloride}=(1.60g/mL\times 500mL)=800g$

Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molarity:

$\text{Molality of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent (in g)}}$ .....(2)

Given values:

Given mass of naphthalene = 51.2 g

Molar mass of naphthalene = 128.17 g/mol

Mass of solvent = 800 g

Putting values in equation 2, we get:

$\text{Molality of naphthalene}=\frac{51.2\times 1000}{128.17\times 800}\\\\\text{Molality of naphthalene}=0.499m$

Hence, the molality of naphthalene solution is 0.499 m

4 0

1 year ago

H2CO3 -> H2O + CO2 What type of chemical reaction is taking place in this

OlgaM077 [116]

Answer: decomposition

Explanation: one molecule forms tro molecules

8 0

2 years ago

At a temperature of -25 °C, a sample of gas in a rigid container exerts a pressure of 55.8 kPa. At what temperature will the pre

never [62]

<h3>Given:</h3>

$P_{1} = \text{55.8 kPa}$

$T_{1} = -25^{\circ}\text{C + 273 = 248 K}$

$P_{2} = \text{145 kPa}$

<h3>Unknown:</h3>

$T_{2}$

<h3>Solution:</h3>

$\dfrac{P_{1}}{T_{1}} = \dfrac{P_{2}}{T_{2}}$

$T_{2} = T_{1} \times \dfrac{P_{2}}{P_{1}}$

$T_{2} = \text{248 K} \times \dfrac{\text{145 kPa}}{\text{55.8 kPa}}$

$\boxed{T_{2} = \text{644 K}}$

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2 years ago

In parallel circuits different _____________ different branches of the wire?

Helga [31]

I believe that this is the answer :

in parallel circuits, different loads has different branches of wire

good luck

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2 years ago

7th Grade Vocabulary Quiz

Diano4ka-milaya [45]

Answer:

1.Nucleus 2.Cytoplasm 3. Vacuoles 4.chloroplasts 5. Body Cell 6. Cell Wall 7. Membrane

Explanation:

The nucleus is the control center of the cell.
The jelly-like substance inside the cell is called as cytoplasm.
They are found in both animal and plant cells but are much larger in plant cells.
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.
The rest of the air is mostly nitrogen (79%). Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar.
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.

7 0

2 years ago