Can anyone help me with the final answers plzzzzz

Some of the properties are:

1. Gamma, γ-rays are not deflected by electric and magnetic fields. It shows that they do not have any charge.

2. Gamma, γ-rays are electromagnetic waves like X-rays. The wavelength of γ-ray photon is smaller than that of X-rays.

3. The rest mass of a Gamma, γ-ray photon is zero. (Photon has mass zero but it has momentum, why?)

4. Gamma, γ-rays travel with the speed of light.

5. Gamma, γ-rays have very large penetrating power. They can pass through several centimeter of iron and lead.

6. Gamma, γ-rays can produce fluorescene in a substance like willimite.

Answer:

The log will float on the water because its density is lower than the liquid, so it will stay at the top due to Archimedes' principle.

Answer:

B: It will float.

Explanation:

on edge2021! hope this helps!!~ (=^▽^=)

Answer:

Explanation:

I think it is D

I'm pretty sure we have the same class (I go to FL), because I have the same problem, and it was assigned the day you posted this, so I can't give a full answer but important things would be conducting electricity, solubility, flexibility, shape, and geometries. Sorry I can't be of more help!

Answer:

B

Explanation: hoped this helped!!!

Answer:

it is c no cap

Explanation: C

The second volume :  V₂= 1472.9 L

Further explanation

Given

980 L at 71 C and 107.2 atm

13 C and 59.3 atm

Required

The second volume

Solution

T₁ = 71 + 273 = 344 K

P₁ = 107.2 atm

V₁ = 980 L

P₂ = 59.3 atm

T₂ = 13 + 273 = 286 K

Use combine gas law :

P₁V₁/T₁ = P₂V₂/T₂

Input the value :

107.2 x 980/344 = 59.3 x V₂/286

V₂= 1472.9 L

Answer: PNS, CNS is

Periferal nervous system. Central nervous system.

Explanation:

Answer:

almonds and sesame oil have the same amount of fat.

Explanation:

Almonds: 14 g

Butter: 12 g

Sesame Oil: 14 g

Answer:

The answer is C. A single replacement reaction.

Explanation:

I did quiz.

The reaction is represented by Fe + CuSO4 → Cu + FeSO4 is single-replacement reaction . option C is correct.

A single-replacement reaction sometimes is called single displacement reaction into which a single compound as gets attached to the other compound after the completion of the reaction and we get it as a product.

Examples are Zn + 2HCL will give ZnCl + H2 gas but the condition is that the elements which are replacing must be of same in nature otherwise they will not get replace by any of them.

Therefore, reaction is represented by Fe + CuSO4 → Cu + FeSO4 is single-replacement reaction . option C is correct.

Learn more about single replacement reaction, here:

https://brainly.com/question/8625202

#SPJ2

Answer:

[tex]Cr_2O_7^{2-}(aq)+2Cu^+(aq)\rightarrow Cu_2Cr_2O_7(s)[/tex]

Explanation:

Hello!

In this case, when writing net ionic equations, we first need to identify the complete molecular equation; thus for potassium dichromate reacting with copper (I) bromide, we have:

[tex]K_2Cr_2O_7(aq)+2CuBr(aq)\rightarrow Cu_2Cr_2O_7(s)+2KBr(aq)[/tex]

Thus, since all the species are aqueous except copper (II) dichromate, we can write the complete ionic equation by ionizing the aqueous ones:

[tex]2K^++Cr_2O_7^{2-}+2Cu^++2Br^-\rightarrow Cu_2Cr_2O_7(s)+2K^++2Br^-[/tex]

Finally, for the net ionic equation, we need to cancel out the spectator ions as they are present at both reactants and products sides, thus, we obtain:

[tex]Cr_2O_7^{2-}(aq)+2Cu^+(aq)\rightarrow Cu_2Cr_2O_7(s)[/tex]

Best regards!

Answer:410.6 g

Explanation:

Answer:

The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot. A concentration gradient is a just a region of space over which the concentration of a substance changes, and substances will naturally move down their gradients, from an area of higher to an area of lower concentration.

In cells, some molecules can move down their concentration gradients by crossing the lipid portion of the membrane directly, while others must pass through membrane proteins in a process called facilitated diffusion.

Explanation:

there are your two reasons molecules cannot pass easily through the cell membrane and what part of the cell membrane helps them get through is concentration gradient

Answer:

it will reach the house in 3 hours

Explanation:

20km x 3h = 60km

Answer:

no

Explanation:

Answer:

+1

The oxidation state of H+ = +1. The Oxidation state of Zn2+ = +2. The oxidation state of H2 = 0. The sum is equal to zero because there are 2 H+ ions.

Explanation:

Answer:

Explanation:

hc-- c--ct

The correct answer is option A: CH3COCH3

Hydrogen bonding occurs when hydrogen is directly bonded to a highly electronegative atom.

Hydrogen bonding is one of the intermolecular interactions. It occurs only when hydrogen is bonded to a very electronegative atom in a molecule. Hydrogen bonding can occur between two molecules of the same type(intermolecular hydrogen bonding) or within the same molecule (intra molecular hydrogen bonding). In either case, the bonding is polar as hydrogen is attached to the electronegative atom via a non-covalent bonding interaction.

Looking at the structures in the question attached, CH3COCH3 does not have any hydrogen atom directly attached to a highly electronegative atom hence CH3COCH3 does not exhibit hydrogen bonding.

Hydrogen bonding in water is shown in the image attached.

For more about hydrogen bonds, see

https://brainly.com/question/10904296

Answer:

Citric acid

Explanation:

Answer:

On edge it is C or option 3 citric acid

Explanation:

Answer:

The area is important for climate science research because they can look at the glaciers and see over the years what is happening with them, are they multiplying or are they decreasing and if so at what rate.

Answer:

Melting glaciers are causing sea levels to rise. It’s important to study natural conditions in the Northern Patagonian Ice Field because the landscape there is dynamic and the effects of climate change can easily be seen. The retreat of the Nef Glacier and the disappearance of icebergs on the lake are evidence of rising temperatures and climate change.

Explanation:

Explanation:

The smaller numbers in the image below represents the subscripts.

Answer:

e is right ▶️▶️▶️▶️▶️▶️▶️

Answer: [tex]Rb_2S[/tex] < [tex]K_2S[/tex] < [tex]Li_2S[/tex]

Explanation:

Lattice energy is the energy required to dissociate 1 mole of the an ionic compound into its constituent ions.

Thus higher is the lattice energy more energy will be required to melt the compounds.

As [tex]Li_2S[/tex]  has highest melting point,  it will require most energy to melt an hence it will have highest lattice energy. The order of three compounds in order of increasing lattice energy

[tex]Rb_2S[/tex] < [tex]K_2S[/tex] < [tex]Li_2S[/tex]

Answer:

Empirical formula is C₃H₄O

Explanation:

Empirical formula:

It is the simplest formula gives the ratio of atoms of different elements in small whole number .

Given data:

Percentage of hydrogen = 7.14%

Percentage of carbon = 64.3%

Percentage of oxygen = 28.6%

Empirical formula = ?

Solution:

Number of gram atoms of H = 7.14 / 1.01 = 7.1

Number of gram atoms of O = 28.6 / 16 = 1.8

Number of gram atoms of C = 64.3 / 12 = 5.4

Atomic ratio:

            C                  :         H            :         O

         5.4/1.8             :      7.1/1.8       :       1.8/1.8

            3                   :        4            :        1

C : H : O = 3 : 4 : 1

Empirical formula is C₃H₄O.

Answer:

Explanation:

probably C

Answer:

E

Explanation:

Answer:

A solution is consist of solute and solvent and they both together determine the properties of complete solution. It is important to know the properties of both solute and solvent because they both depend on each other to meet a certain need, for example: the intermolecular forces between solutes and solvents determine the solubility of solute in solvent and if solutes must be completely dissolved in the solvent for a homogenous mixture.

The combination of solute and solvent to form a solution is a physical process and not a chemical one because it des not change the chemical properties of solute and solvents.

Answer:

1.46 mol

Explanation:

Given data:

Moles of bromine gas produced = ?

Mass of potassium bromide = 347.5 g

Solution:

Chemical equation:

2KBr  +  F₂   →  2KF + Br₂

Number of moles of KBr:

Number of moles = mass/ molar mass

Number of moles = 347.5 g/ 119.0 g/mol

Number of moles = 2.92 mol

Now we will compare the moles of KBr and bromine.

                  KBr       :     Br₂

                    2         :      1

                   2.92    :       1/2×2.92 = 1.46 mol