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4 years ago

What is the single factor that classifies an element as a transition metal?

1 answer:

7 0

The answer is b) the highest occupied orbital is a “d”orbital.
Transition metals are metals where the highest energy electrons partially fill the d subshells. There are some elements with complete d subshells but on forming cations they have incomplete d subshells.
These transition metals have some properties that are different from the other metals .

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Calculate the volume (in cm³) of 935 grams of steel. The density of steel is 7.8 g/cm³. Give your answer to 2 decimal places.

Effectus [21]

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question we have

$volume = \frac{935}{7.8} \\ = 119.871794...$

We have the final answer as

<h3>119.87 cm³ to two decimal places</h3>

Hope this helps you

7 0

4 years ago

Need help !!!!! ASAP

Nat2105 [25]

<h2>Hello!</h2>

The answer is:

The temperature will be the same, 37°C.

Since from the statemet we know the first temperature, pressure and volumen of a gas, and we need to calculate the new temperature after the pressure and the volume changed, we need to use the Combined Gas Law.

The Combined Gas Law establishes a relationship between the temperature, the pressure and the volume of an ideal gas using Boyle's Law, Gay-Lussac's Law and Charles's Law.

The law establishes the following equation:

$\frac{P_{1}V{1}}{T_{1}}=\frac{P_{2}V{2}}{T_{2}}$

Where,

$P_{1}$ is the first pressure.

$V_{1}$ is the first volume.

$T_{1}$ is the first temperature.

$P_{2}$ is the second pressure.

$V_{2}$ is the second volume.

$T_{2}$ is the second temperature.

Then, we are given the following information:

$V_{1}=200mL\\P_{1}=4atm\\T_{1}=37\°C\\V_{2}=400mL\\P_{2}=2atm$

So, isolating the new temperature and substituting the given information, we have:

$\frac{P_{1}V{1}}{T_{1}}=\frac{P_{2}V{2}}{T_{2}}\\\\T_{2}=P_{2}V{2}*\frac{T_{1}}{P_{1}V_{1}} \\\\T_{2}=2atm*400mL*\frac{37\°C}{4atm*200mL}=37\°C$

Hence, we have that the temperature will not change because both pressure and volume decreased and increased proportionally, creating the same relationship that we had before the experiment started.

The temperature will be the same, 37°C

Have a nice day!

4 0

3 years ago

1. an adaptation to meet the need for food:A

True [87]

An adaptation is a physical or behavioral feature that helps an animal stay alive.

1. An adaptation an animal needs to meet the need for food: Sharp teeth.
An adaptation to meet the need for water: A tongue.
An adaptation for shelter: Sharp claws to climb trees for shelter.

3. Starts storing more fat, bears a warmer coat, and sleeps for hibernation.

5. If it's cold outside, fur can help keep an animal warm. A chameleon uses his skin (or covering) to blend into this surroundings.

6. "A". Sharp eyesight.

I hope this helped you!

4 0

3 years ago

What is the Pauli Exclusion Principle?

Fiesta28 [93]

Answer:

the answer is A An atomic orbital can only hold a maximum of 2 electrons, each with opposite spins

Explanation:

3 0

3 years ago

When you count up the electrons in a Lewis Structure, do double and triple bonds count as 4 or 6 electrons?

natima [27]

Answer:

Double=4 and triple=6

Explanation:

This is because double bonds are two pairs of electrons are shared between atoms and triple bonds are three pairs, and one pair of electrons is 2, so 2 x 2=4 and 2 x 3=6.

6 0

3 years ago