anyone know the answer to this please?​

Answer: 162.2 g

Explanation: 6.02 × 10^23 particles is one mole.

Molar mass of FeCl3 is 55.85 + 3· 35.45 = 162.2 g/mol

Answer:

Explanation:

-Reactants-

C: 1

O: 3

H : 2

-Products-

C: 6

O: 8

H: 12

Since these two are not equal, this reaction is not balanced.

Here is the balanced reaction:

6CO2+6H2O ⇒ C6H12O6+6O2

Answer: 1 mole ➡️ 6.022×10²³ atoms of si.

X mole ➡️ 2.8×10²⁴ atoms of si.

X = 2.8×10×10²³/6.022×10²³

= 28/6.022

= 4.65 moles.

Explanation:

The total number of moles in 2.8x10^23 atoms of Calcium will be 4.65 moles.

The mole is defined as the amount of substance containing the same number of chemical units (atoms, molecules, ions, electrons, or other specified entities or groups of entities) as exactly 12 grams of carbon-12

The mole unit allows us to express amounts of atoms and molecules in visible amounts that we can understand.

For example, we already know that, by definition, a mole of carbon has a mass of exactly 12 g. This means that exactly 12 g of C has 6.022 × 10 23 atoms

1 mole is  6.022×10²³ atoms of calcium

one mole of calcium =  2.8×10²⁴

substitute the value in the equation,

2.8×10²⁴ atoms of calcium  = 2.8×10×10²³/6.022×10²³

total number of moles = 28/6.022= 4.65 moles

Therefore, the total number of moles will be 4.65 moles

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Answer:

B. are openings in the earth surface

Answer:

SATURATED: Saturated fat is a type of fat in which the fatty acid chains have all or predominantly single bonds.

UNSATURATED: Unsaturated fats are loosely packed. They tend to be liquid at room temperature.

There are two main types of unsaturated fat:

Monounsaturated

Polyunsaturated

Answer:

80 tricycle

Explanation:

Because u need 3 wheels to for each tricycle so Ll u have to do is just divide 3 with 240 u will get 80

Answer:

36.2 K

Explanation:

Step 1: Given data

Step 2: Convert T₁ to Kelvin

We will use the following expression.

K = °C +273.15

K = 38 °C +273.15 = 311 K

Step 3: Calculate T₂

We will use Gay Lussac's law.

P₁/T₁ = P₂/T₂

T₂ = P₂ × T₁/P₁

T₂ = 1.0 atm × 311 K/8.6 atm = 36.2 K

Answer:

Does the picture go with the question?

Explanation:

Answer:

C is the only option that represents an empirical formula, as it can't be simplified further.

You can turn C8H18, for example: to C4H9, but you can't do the same with C2H5.

Let me know if this helps!

Answer:

1. balanced

2. balanced

3. unbalanced

4. balanced

5. balanced

6. unbalanced

7. balanced

8. unbalanced

Explanation:

The outer electron of an oxygen atom will have a stronger attraction to the nucleus than the outer electrons of a carbon atom.

In the periodic table, atomic sizes decrease across the period. This decrease in atomic size stems from increase in the size of the nuclear charge.

This implies that as we move from left to right in the periodic table, atoms of elements become smaller due to stronger nuclear attraction as the size of the nuclear charge becomes larger.

Oxygen atom has a nuclear charge of +8 while carbon atom has a nuclear charge of +6. Therefore,  outer electron of an oxygen atom will have a stronger attraction to the nucleus than the outer electrons of a carbon atom.

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Answer:

2 because it has two outer shell electrons out of 8 (relevant rule only for the first 20 elements)

Answer:

A

Explanation:

Because in 1 second, line A was faster than line B.

Answer:

Hey mate....

Explanation:

This is ur answer.....

A species considered to be facing a very high risk of extinction in the wild.

Hope it helps you,

Mark me as the brainliest...

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Answer:

It means when a species in the wildlife is in danger or close to being completely extinct.

Answer:

[tex]m_{CO_2}=45gCO_2[/tex]

Explanation:

Hello there!

In this case, since the combustion of butane is:

[tex]C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O[/tex]

Thus, since the molar mass of butane is 58.12 g/mol and that of carbon dioxide is 44.01 g/mol, we obtain the following mass of CO2 product:

[tex]m_{CO_2}=15gC_4H_{10}*\frac{1molC_4H_{10}}{58.12gC_4H_{10}} *\frac{4molCO_2}{1molC_4H_{10}} *\frac{44.01gCO_2}{1molCO_2} \\\\m_{CO_2}=45gCO_2[/tex]

Best regards!

Water is a polar molecule where,  the positive hydrogen end attracts the negative oxygen ends of another water molecule. Thus, option D is correct.

Polarity is ability of charge separation in a molecule. In some molecules, the positive and negative ends exists separately and both ends remains reactive towards the counter charged end of other molecule.

The charge separation  in molecules results in a  dipole moment. Permanent dipole moment make the molecule polar. Water is a polar molecule.

The shared pair of electrons in water are more attracted towards the electronegative oxygen atom leads the charge separation. This polarity helps to the formation of strong intermolecular hydrogen bonding.

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Water and oil? Cake and your finger? Glass and virtually anything? ...

Tonnes and tonnes of noninterreactant substances.

Hope this helps.

Answer:

0.21 m

Explanation

25  NaCl * 1 mole/58.44 g NaCl * 1/20 kg = 0.21 m

Answer:

A saturated fat is a type of fat in which the fatty acid chains have all or predominantly single bonds. A fat is made of two kinds of smaller molecules: glycerol and fatty acids. Fats are made of long chains of carbon atoms. Some carbon atoms are linked by single bonds and others are linked by double bonds and a type of fat containing a high proportion of fatty acid molecules with at least one double bond, considered to be healthier in the diet than saturated fat.

Explanation:

good luck

Answer:

I think it would be false

Explanation:

All things have a unique freezing/melting point

Answer:

• The molar amount of the gas

Explanation:

Hello!

In this case, according to the ideal gas law:

[tex]PV=nRT[/tex]

Whereas P stands for pressure, V for volume, n for the molar amount of the gas, R for the universal gas constant and T for the temperature, we can see that as pressure, volume and temperature are given, we can compute the molar amount of the gas as shown below:

[tex]n=\frac{PV}{RT}[/tex]

Since R is a constant always.

Best regards!

Answer: (A,B,D) [1, 2, 4]

Explanation:

Explanation:

About which substance you are talking?

Answer:

a wind from the direction that is predominant at a particular place or season.

Explanation:

Brainlest is appriciated

Answer:

the solubility of the gas increases

Explanation:

as the kinetic energy of a gaseous solute increases,its molecules has a greater chance of escaping the attraction of the solvent molecules and return to the gas phase..which lead to the solubility of the gas been Increase as the temperature decreased .

Cytoplasm: gel like environment which allows organelles to move about the cell

Golgi bodies: packages and ships materials out of the cell

Cell membrane: controls what goes in and out of the cell

Chloroplast: makes food for plant cells using sunlight

Lysosome: breaks down waste, food, and worn out cell parts

Mitochondria: breaks down food to release energy for the cell

Nucleus: contains the cell's DNA and is the control center of the cell

Endoplasmic reticulum: transports materials within cell; process lipids

Vacuole: stores water, waste and food

Ribosome: make proteins