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3 years ago

PLEASE HELP ME WITH THIS IT'S DUE TOMORROW

Chemistry

1 answer:

Bond [772]3 years ago

7 0

Answer:

Both:

-They are both made up of cells embedded in an extracellular matrix. It is the nature of the matrix that defines the properties of these connective tissues.

Cartilage:

-Cartilage is thin, avascular, flexible and resistant to compressive forces.

-Cartilages are soft and flexible components present in ear, nose and joints.

Bone marrow:

-Bone is highly vascularised, and its calcified matrix makes it very strong.

-Bones are hard and tough which gives the structural framework of the skeleton in the body.

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Find the number of moles of the following substances 210 grams of NaHCO3

Triss [41]

The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

<h3>How to find the Number of moles ? </h3>

To calculate the number of moles use the formula

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

Mass of NaHCO₃ = 210 g

Now we have to find the Molar mass of NaHCO₃

= Atomic mass of Na + Atomic mass of H + Atomic mass of C + 3 (Atomic mass of O)

= 23 + 1 + 12 + 3 (16)

= 36 + 48

= 84 g/mol

Now put the value in above formula we get

Number of moles = $\frac{\text{Given Mass}}{\text{Molar Mass}}$

= $\frac{210\ g}{84\ g/mol}$

= 2.5 moles

Thus from the above conclusion we can say that The number of moles of 210 grams of NaHCO₃ is 2.5 moles.

Learn more about the Moles here: brainly.com/question/15356425

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2 years ago

Balanced equation of potassium chloride and ammonium nitrate; it’s types, net and observation

ASHA 777 [7]

Potassium chloride reacts with ammonium nitrate to give ammonium chloride and potassium nitrate.

This is a type of double displacement reaction. The balanced chemical equation can be represented as,

$KCl(aq)+NH_{4}NO_{3}(aq)-->NH_{4}Cl(aq)+KNO_{3}(aq)$

Total ionic equation for this reaction will be,

$K^{+}(aq)+Cl^{-}(aq)+NH_{4}^{+}(aq)+NO_{3}^{-}(aq)--> K^{+}(aq)+NO_{3}^{-}(aq)+NH_{4}^{+}(aq)+Cl^{-}(aq)$

There is no apparent reaction as this reaction is not accompanied by the formation of a gas or a solid precipitate. We cannot observe any visual reaction as there is not net reaction taking place. All the ions remain as spectator ions.

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3 years ago

What happens when the kinetic energy of particles in a liquid state increases?

Hitman42 [59]

Answer:

When the kinetic energy of particles in liquid increases, the particles are pushed farther apart. This can result in the expansion of matter. More pressure will be exerted on the container in which this liquid is stored.

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3 years ago

What element has the same amount of valence electrons as neon?<br> -KDM

Darya [45]

Answer:

Sulfur has the same amount, like all the other elements in group 16, has six valence electrons.

Explanation:

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3 years ago

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Which components do all circuits have in common? Check all that apply.

omeli [17]

Answer: All the circuits have energy source, wires and device that needs electrical energy in common.

Explanation: Electric circuit is a path through which electrons flow from higher potential to lower potential.

A wire is required to connect Energy source and a device that needs electrical energy to run. On the other hand, voltmeter and ammeter are the devices which are used to measure voltage and current respectively and not necessarily used in all the circuits.

Hence, the common components in an electric circuit are energy source, wires and device that needs electrical energy in common.

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3 years ago

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