anyone know this? I'll brainlist u!​

Answer:

The answer is 1

Explanation:

Gold is gold, the size doesn't change what it is.

Answer:

120 degrees

Explanation:

The molecule has trigonal bipyramidal geometry.  The angle between B molecules is 120 degrees.  The angle between A and B molecules is 90 degrees.

The bond angle of B-C-B is equal to 120° as the given geometry of the molecule is trigonal bipyramidal.

The trigonal bipyramid formation in chemistry is a molecular geometry in which one atom is at the center and 5 more atoms are at the corners molecular structure.

The bond angles of this geometry surrounding the central atom are not identical because there is no geometrical arrangement with five terminal atoms in equivalent positions. For example, this molecular geometry is PF₅, PCl₅ in the gas phase.

In PCl₅, the P atom shares a plane with three Cl atoms at 120° angles to each other in equatorial positions, and two more Cl atoms above and below the plane or at axial positions.  An axial atom has three neighboring equatorial atoms at a 90° bond angle.

In the given figure, the B-C-B is present at the equatorial plane of the molecule. The angle between the bonds at the equatorial plane is 120°. Therefore, the angle of B-C-B is equal to 120°.

Learn more about trigonal bipyramidal geometry, here:

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Answer:

kidneys

Explanation:

For example, salts of sodium, potassium and ammonium are usually soluble in water. Notable exceptions include ammonium hexachloroplatinate and potassium cobaltinitrite. Most nitrates and many sulfates are water-soluble

Answer:

Explanation:

Answer:

3250113.34

Explanation:

Align decimals together

If the other numbers don't have decimals, you can add a decimal and zeros after the decimal as it means the same thing

2 1 1 1

18236.34

3244223.00

+ 7654.00

3250113.34 is the answer

Answer:

-3254795.34

Explanation:

you add 18236.34 and 3244213 and get 3262449.34

then you subtract 7654 from 3262449.34 and get -3254795.34

Answer:

cilicon 14

Explanation:

Answer:

with a double line

Answer:

its 1 not negative

the atom shown below was hydrogen, known as H.

Answer:

12 moles O

In one mole of aluminum sulfate, Al2(SO4)3 , there are 2 moles Al atoms, 3 moles sulfur atoms, and 12 moles O atoms

Explanation:

Answer:

1...

Explanation:

Copper and tin wire are both ductile and able to be stretched.

Answer:

Gas

Explanation:

Answer:

B C A

Explanation:

because as you pour the blue stuff in it will straight up go to the bottom (and has less blue coloring) Then it will go to the top (lil more blue coloring) then eventually the whole jar will be blue

hope this helps you out bro

Answer:

The order is B, C, A.

Explanation:

When the liquid is first poured into the container, the entropy is still very high because there is a very large difference in color of the liquid. The more time passes, entropy becomes lower because the blue color liquid disperses through the rest of the container. So the entropy is the highest in B and lowest in A. At A the entropy is as close to 0 as it can be in this situation out of the three parts.

Answer:

5.88 × 10⁻⁷ m

Explanation:

Speed of Light = Wavelength times Frequency

c = λν

Step 1: Define

c = 3.0 × 10⁸ m/s

ν = 5.10 × 10¹⁴ Hz

λ = unknown

Step 2: Solve for λ

3.0 × 10⁸ m/s = 5.10 × 10¹⁴ Hz · λ

λ = 5.88235 × 10⁻⁷ m

Step 3: Simplify

We are given 3 sig figs.

5.88235 × 10⁻⁷ m ≈ 5.88 × 10⁻⁷ m

Answer:

The answer is

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

From the question

N = 5.38 × 10²¹ atoms of sodium

We have

[tex]n = \frac{5.38 \times {10}^{21} }{6.02 \times {10}^{23} } \\ = 0.00893687...[/tex]

We have the final answer as

Hope this helps you

Answer:

2

Explanation:

1 is definitely wrong

density must be lower to atop another liquid

in 3 ,I consider the example of water and oil whi has a lower boiling point

Answer:

2

Explanation:

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question

mass = 12 g

volume = 6 mL

We have

[tex]density = \frac{12}{6} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

2.0 G/ML

Explanation:

Answer:

1

Explanation:

there is only one sulphur (S) atoms in the formula for sodium sulphate

The chemical formula for sodium sulfate is Na₂SO₄.One sulfur atoms are in the formula for sodium sulfate.

The term chemical formula shows the elements that create  the compound and the numbers of atoms of each element in the smallest unit of that compound, be it a molecule or a formula unit.

Chemical formulas are classified into three types: empirical, molecular, and structural.

Empirical formulas depict the simplest whole-number ratio of atoms in a compound, whereas molecular formulas depict the number of each type of atom in a molecule and structural formulas depict how the atoms in a molecule are bonded to each other.

Thus, the chemical formula for sodium sulfate is Na₂SO₄. In sodium sulphate two molecules of sodium, one atom of sulfur, and four atoms of oxygen are present.

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Answer:

10 electrons

Explanation:

The easiest way to do this is to simply look at the periodic table, find the atomic number of magnesium, and subtract 2 from it. The reason this works is that the atomic number tells you how many protons an element has. If we want the element to be neutral, then by definition it will have the same number of electrons.

Answer:

10 Valence Electrons

Explanation:

Easiest thing to do is to look at your periodic table :)

Answer:

Because they have variable oxidation states

Explanation:

Transition metals are designated with roman numerals because they have variable oxidation states.

They do not form a single ionic ion as seen by the main group elements.

Answer:

The rock displaces 475 mL of water.

475 mL is the volume of the rock.

1 mL = 1 cm^3  

The mass is just density times volume.

m = 475 * 2.5 = 125 g

Explanation:

Answer:

i think it is D.

Explanation:

The answer is D because it’s where a solid turns to a gas without going through a liquid phase if that makes sense

Answer:

because it is going from a solid to a gas.

Explanation:

also it's still cold

Answer:

20 atoms

broo this is easy plz give me harder questions smh