The human skeleton has 206 bones.
True
False

Answers

Answer 1

Answer: This is true, you start at 270 bones at birth, which is hard to believe, because I thought the more younger, the more less they have. But hey, that wasn't true!

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A researcher is designing a laboratory experiment to determine whether the inorganic substance A affects the rate of a reaction between two colored liquids, X and Y. When the reaction is complete, the liquid is clear. The reaction between X and Y is similar to one used by manufacturers to produce certain chemicals in factories. Which method would best answer his question about reaction rate and what will he find out about substance A?
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Discuss the shapes of Nh3 and H2O on the basis of VESPER theory?

Answers

Answer:

Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.

Explanation:

Nitrogen gas is being held in a 14.3 L tank at a temperature of 62°C. What will the volume be when the temperature drops to 24°C?

Answers

I think the volume should be still 14.3L. In this question, the gas is being held in a tank. The tank has a constant volume. The gas in the tank has the property to fill the space. So when the temperature changes, the pressure changes too. But the volume doesn't change.

As the activation energy of a reaction decreases, the number of molecules with at least this much energy ______________.

Answers

Answer:

Increasing

Explanation:

*WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*Which of the following is a property of a mixture?

It consists of a single element or compound.
It may have substances in different states of matter.
It is very difficult to separate the components.
The proportion of the particles that make it up cannot be altered.

Answers

Answer:

Explanation:

It may have substances in different states of matter

Hope u mark as branliest

Positrons are spontaneously emitted from the nuclei of(1) potassium-37 (3) nitrogen-16
(2) radium-226 (4) thorium-232

Answers

Answer: Option (1) is the correct answer.

Explanation:

A positron is a small particle which contains a +1 charge and its mass is equal to the mass of an electron, that is, $9.109 * 10^(-31)$ kg.

A positron is represent by the symbol $^(0)_(+1)\beta$ .

For example, $^(37)_(19)K \rightarrow ^(37)_(18)Ar + ^(0)_(+1)\beta$

Whereas nitrogen-16 does not decay to give a positron because nitrogen-16 is the daughter isotope formed due to decay of oxygen-16.

The decay reaction is as follows.

$^(16)_(8)O \rightarrow ^(16)_(7)N + ^(0)_(+1)\beta$

And, on radioactive decay of thorium-232 there will be formation of radium-228 along with emission of an alpha particle.

The reaction will be as follows.

$^(232)_(90)Th \rightarrow ^(228)_(88)Ra + ^(4)_(2)\alpha$

Therefore, we can conclude that out of the given options positrons are spontaneously emitted from the nuclei of potassium-37.

Positrons are spontaneously emitted from the nuclei of potassium -37.

Whats another name for cytosol

Answers

Another name for cytosol is cytoplasmic matrix. This is the liquid that is found in the cells. It is how the organelles are suspended within the cell.

Another name for cytosol is cytoplasmic matrix. This fluid can be found inside cells. It has to do with how the cell's organelles are held in suspension.

Numerous crucial metabolic processes occur in the cytosol, which also serves as a conduit for the movement of chemicals and ions throughout the cell. It offers a dynamic setting that supports the cellular machinery and enhances the cell's overall functionality. The term "cytoplasmic matrix" refers to the fluid-like substance (cytosol) that provides the cytoplasmic organelles and molecules with their structural support.

To know more about cytosol, here:

brainly.com/question/29435961

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What is the pressure in atm exerted by 2.48 moles of a gas in a 250.0 ml container at 58c?

Regardless of how it is prepared or where a sample is collected from, water is always composed of 88.8% oxygen and 11.2% hydrogen by mass. this is an illustration of the

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