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3 years ago

Yellow bone marrow is located within the medullary cavity and is rich in fats.

Chemistry

1 answer:

rosijanka [135]3 years ago

8 0

Answer:

true

Explanation:

The second type of bone marrow found in the body is yellow bone marrow, which gets its name from its high concentration of fat cells, which appear yellow in color. This type of bone marrow can be found in the medullary cavity in the shaft of long bones and is often surrounded by a layer of red bone marrow.

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Why does hydrogen have a -1 oxidation state in the compound NaH?

ruslelena [56]

your answer will be :

B. <u>Na has a lower</u> <u>electronegativity than H</u>

because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).

6 0

3 years ago

Calculate the equilibrium constant at 298 K for the reaction of formaldehyde (CH2O) with hydrogen gas using the following inform

Mariana [72]

Answer:

E. 8.08 x 10⁴.

Explanation:

Hello,

In this case, for the reaction:

$CH_2O(g) + 2H_2(g) \rightleftharpoons CH_4(g) + H_2O(g)$

We can compute the Gibbs free energy of reaction via:

$\Delta G\°=\Delta H\°-T\Delta S\°$

Since both the entropy and enthalpy of reaction are given at 298 K (standard temperature), therefore:

$\Delta G\°=-94.9kJ-(298K)(-224.2\frac{J}{K}*\frac{1kJ}{1000kJ} )\\\\\Delta G\°=-28.1kJ$

Then, as the equilibrium constant is computed as:

$K=exp(-\frac{\Delta G\°}{RT} )$

We obtain:

$K=exp(-\frac{-28.1kJ/mol}{8.314x10^{-3}\frac{kJ}{mol* K}}*298K )\\\\K=8.08 x10^4$

For which the answer is E. 8.08 x 10⁴.

Best regards,

3 0

4 years ago

The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid

7nadin3 [17]

Answer;
4.5 m³

Solution:
The statement says that two blocks are present on a lid of a container with volume of 9 m³. The mass of lid is equal to the mass of two blocks. It means that initially there are four blocks (or four atm pressure) upon 9 m³ volume.

After that four more blocks are placed on the lid. Means the pressure is increased from 4 atm to 8 atm (2 atm of lid, 2 atm of old blocks, 4 atm of new four blocks).

So, Data generated is,

P₁ = 4 atm

V₁ = 9 m³

P₂ = 8 atm

V₂ = ?

According to Boyle's Law,

P₁ V₁ = P₂ V₂

Solving for V₂,
V₂ = P₁ V₁ / P₂

Putting values,
V₂ = (4 atm × 9 m³) ÷ 8 atm

V₂ = 4.5 m³

0 0

4 years ago

a rectangular solid of unknown density is 5 meters long, 2 meters high, and 4 meters wide. The mass of this solid is 300 grams.

Lostsunrise [7]

Answer:if you could be more spesific id be happpy to help

Explanation:

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3 0

4 years ago

Read 2 more answers

Help me fast plz

Alecsey [184]

Answer:

A) CaF 2 (Calcium Fluoride)

C KBr (Potassium Bromide)

D) Mgl 2 (Magnesium Iodide)

Explanation:

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5 0

3 years ago