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3 years ago

How many orbitals are there in the second principal energy level for the hydrogen atom? 1?

1 answer:

5 0

The first principal energy level contains only an s sublevel; therefore, it can hold a maximum of two electrons. Each principal energy level above the first contains one s orbital and three p orbitals.

You might be interested in

Which item is NOT shown in a balanced chemical equation?

hram777 [196]

Answer:

Ur mom

Explanation:

5 0

3 years ago

The map shows the movement pattern for major ocean currents. What ideas do you have about what might make ocean

baherus [9]

Answer:

Currents are physical occurrences or factors that put motion into oceans, making them move back and forth.

Such factors include but may exceed the following:

Wind
Variation in water mass densities (this is caused by alterations in temperature and salinity levels)
Gravity
Earthquakes or storms

When there is movement in ocean currents, heat, nutrients, water oxygen levels are also affected.

Cheers

5 0

3 years ago

Question 4

nata0808 [166]

Answer:

A. She can run the same distance in a shorter amount of time.

Explanation:

Speed can be computed with the formula:

$v = \dfrac{d}{t}$

Where:

v = speed

d = distance

t = time

So if you look at the formula, distance there tells you how far an object has traveled, and the time tells us how long it took to cover that distance. As you can see, speed and time are inversely proportional. This means that as one goes up, the other goes down. So if we reduce time travelling a certain distance, the speed increases.

3 0

4 years ago

Acetone major species present when dissolved in water (CH3)2CO

Marianna [84]

Answer:

Hydrogen bonding

Explanation:

Acetone major species present when dissolved in water is called hydrogen boding. these occurs when, the acetone and water as the oxygen of acetone's cabonyl bond with the O-H of water.

Such presence of hydrogen bonding would helps the ability of molecules of two types to be miscible together

4 0

3 years ago

if 26.8g of copper (ll) chloride are dissolved in sufficient water to make 4.00 L of solution, what is the molarity of the solut

artcher [175]

Answer: Molarity of the solution is $4.97 \times 10^{-2} M$ and water is the solvent.

Explanation:

Given: Mass of solute = 26.8 g

Volume = 4.00 L

Now, moles of copper (II) chloride (molar mass = 134.45 g/mol) are calculated as follows.

$No. of moles = \frac{mass}{molar mass}\\= \frac{26.8 g}{134.45 g/mol}\\= 0.199 mol$

Molarity is the number of moles of a substance divided by volume of solution in liter.

Therefore, molarity of given solution is calculated as follows.

$Molarity = \frac{no. of moles}{Volume (in L)}\\= \frac{0.199 mol}{4.00 L}\\= 0.04975 M\\= 4.97 \times 10^{-2} M$

Solvent is defined as a component which is present in higher amount in a solution. Generally, a solvent is present in liquid state but it can also be a solid or gas.

In the given solution, copper (II) chloride is dissolved in water so copper (II) chloride is the solute and water is the solvent.

Thus, we can conclude that molarity of the solution is $4.97 \times 10^{-2} M$ and water is the solvent.

4 0

4 years ago