What is a magnet?(2 points)
O A tool used to help determine if certain materials are magnetic
O A tool used to help determine if certain materials have a large mass
O A tool used to help determine if materials are the color blue
O A tool used to help determine if materials use the force of gravity

Answer:

K = 6.25x10⁻⁴

Explanation:

Based on the reaction:

SO₂ + 1/2 O₂ ⇄ SO₃ Kp = 2.5x10⁻²

We can find the Kp of a similar reaction using Hess's law where the sum of 2 reactions a and b produce a K that is:

K = Ka*Kb

The sum of twice the reaction of the problem:

SO₂ + 1/2 O₂ ⇄ SO₃

+ SO₂ + 1/2 O₂ ⇄ SO₃

2SO₂ + O₂ ⇄ 2SO₃

Where K must be:

K = Kp*Kp = Kp²

K = (2.5x10⁻²)²

Answer:

Explanation:

The number of molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

We have

N = 4.67 × 6.02 × 10²³

We have the final answer as

Hope this helps you

Answer: The element B will have ONE unpaired electron in the p orbital.

Explanation:

The electronic configuration of each given element is as follows.

Atomic number of calcium (Ca) is 20.

Ca: [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2}[/tex]

Atomic number of nitrogen (N) is 7.

N: [tex]1s^{2} 2s^{2} 2p^{3}[/tex]

Atomic number of boron (B) is 5.

B: [tex]1s^{2} 2s^{2} 2p^{1}[/tex]

Atomic number of argon (Ar) is 18.

Ar: [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex]

Atomic number of bromine (Br) is 35.

Br: [tex][Ar] 4s^{2} 3d^{10} 4p^{5}[/tex]

Therefore, boron is the only element that have one unpaired electron in the p-orbital.

Thus, we can conclude that element B will have ONE unpaired electron in the p orbital.

Answer:

The Milky Way

Explanation:

Answer:

Your answer is the Milky WAy!

Brainliest?

Explanation:

Ionic product of water, Kw

[tex]Kw = [OH {}^{ - } ][H _{3} O {}^{ + } ] \\ 1.0 \times {10}^{ - 14} = (1 \times {10}^{ - 11} )[H _{3} O {}^{ + } ] \\ [H _{3} O {}^{ + } ] = \frac{(1.0 \times {10}^{ - 14}) }{(1 \times 10 {}^{ - 11}) } \\ ][H _{3} O {}^{ + } ] = 0.001 \: M[/tex]

Answer:

Because it desolves in water very well

Explanation:

For the moment we have analyzed the physical point of view. For many, the most common way to analyze your body is through the chemical elements.

This increases the number of building blocks to more than four particles, but considering that the number of atoms in a 70 kilogram body is 7,000 quadrillion (you write a 7 followed by 27 zeros), it is still quite simple that we can count the 99.95% of your body weight with only seven elements.

The provocative alternative theories to the Big Bang that state that the universe has no limits

You may have heard that most of our body is water. It may seem unlikely given how solid our bodies feel, but most of you are made of cells filled with water.

There is enough structure that you are unlikely to slide down the drain, but you do have a lot of water. About 60 percent of your body is water, even your bones are roughly 30% water.

Two skeletons sitting on the beach.

IMAGE SOURCE, GETTY IMAGES

Caption,

The bones have 30% water in their composition.

Knowing that water is made up of hydrogen and oxygen (H2O), it seems clear to point out that the elements most present in the body are hydrogen and oxygen.

But there is also much of the most versatile of atoms, carbon. All life we know incorporates water and is based on carbon structures.

Since carbon atoms weigh 12 times more than hydrogen atoms, carbon ranks second by weight behind oxygen.

The thing would be like this: we have 65% oxygen, 18% carbon and 10.2% hydrogen.

If we add a small amount of nitrogen (3.1%), a pinch of calcium for those bones (1.6%), 1.2% of phosphorus, 0.25% of potassium and sulfur and smaller percentages of sodium, magnesium and chlorine, we already reached 99.95

Answer:Ca

Explanation:

Answer:

222 g

Explanation:

First we convert 500.0 mL to L:

Then we use the definition of molarity to calculate how many calcium chloride moles are required:

Now we convert 2.00 moles of calcium chloride into grams, using its molar mass:

The question is incomplete, the complete question is shown in the image attached to this answer

Answer:

See Explanation

Explanation:

I want us to bear something in mind. A compound is polar when there is a considerable difference in electronegativity between two bonding atoms in the molecule.

The implication of this is, the shared electron pair of the bond will be closer to the atom of greater electronegativity than the atom of lesser electronegativity thereby creating a dipole in the molecule.

Let us consider each of the compounds;

For Cl-F, the highlighted bond is polar and F is the more electronegative atom

For H-Br, the highlighted bond is polar and Br is the more electronegative atom

For N≡N, the highlighted bond is nonpolar since it is a homonuclear diatomic molecule.