In which image is the wave amplitude the greatest?
4
3
2
1

Answer:

Explanation:

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

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

From the question we have

[tex]volume = \frac{780}{7.8} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

the answer is D

Explanation:

I just took the test

To see the number of atoms of an element we need to multiply the stoichiometry to the the number that is written on the foot of that element. Equation 3 would have the same coefficients in the same order as [tex]\rm 2CO_2 + 3H_20\rightarrow C_2H_6O + 3O_2[/tex].

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side.

[tex]\rm FeCl_3+ NH_4OH \rightarrow Fe(OH)_3+ NH_4Cl[/tex]

Balance Cl by adding coefficient to NH[tex]_4[/tex]Cl

[tex]\rm FeCl_3+ NH_4OH \rightarrow Fe(OH)_3+ 3NH_4Cl[/tex]

Balance O by adding coefficient to NH[tex]_4[/tex]OH

[tex]\rm FeCl_3+ 3NH_4OH \rightarrow Fe(OH)_3+ 3NH_4Cl[/tex]

[tex]\rm CH_4 + O_2\rightarrow CO_2 + H_2O[/tex]

Balance H by adding coefficient to  H[tex]_2[/tex]O

[tex]\rm CH_4 + O_2\rightarrow CO_2 + 2H_2O[/tex]

Balance O by adding coefficient to  O[tex]_2[/tex]

[tex]\rm CH_4 + 2O_2\rightarrow CO_2 + 2H_2O[/tex]

[tex]\rm Fe + H_2SO_4 \rightarrow Fe_2(SO4)_3 + H_2[/tex]

Balance sulfur by adding coefficient to H₂SO₄

[tex]\rm Fe + 3H_2SO_4 \rightarrow Fe_2(SO4)_3 + H_2[/tex]

Balance hydrogen by adding coefficient to H₂

[tex]\rm Fe + 3H_2SO_4 \rightarrow Fe_2(SO4)_3 + 3H_2[/tex]

Now Balance Fe by adding coefficient to Fe

[tex]\rm 2Fe + 3H_2SO_4 \rightarrow Fe_2(SO4)_3 + 3H_2[/tex]

[tex]\rm PCl _5 (s) + H _2 O (l) \rightarrow H _3 PO _4(aq) + HCl (aq)[/tex]

can be balanced as

[tex]\rm PCl _5 (s) + 4 H _2 O (l) \rightarrow H _3 PO _4(aq) + 5 HCl (aq)[/tex]

Therefore, equation 3 would have the same in the same order as [tex]\rm 2CO_2 + 3H_20\rightarrow C_2H_6O + 3O_2[/tex].

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Answer:

1.28 x 10²⁴atoms

Explanation:

Given parameters:

Number of moles of C₂H₆ = 2.12moles

Unknown:

Number of atoms  = ?

Solution:

A mole of a substance is used to quantity the number of atoms or other particles in a substance.

  1 mole of a substance  = 6.02 x 10²³ atoms

 To solve this problem;

 2.12 moles of the C₂H₆ will contain 2.12 x  6.02 x 10²³ atoms

                                                          = 1.28 x 10²⁴atoms

Answer: Physics is about

how things move and why things move

Explanation:

Answer:

Radiowave,Microwave, Infared,UV,X-Ray, Gamma

radio,microwave, ultraviolet,x ray,gamma ray

Explanation:

I looked it up at a NASA link

Answer:

melting and boiling points

Explanation:

The technique for determination of melting and boiling points will also be described in this unit. Pure solid and liquid compounds possess sharp melting and boiling points. Therefore, melting and boiling points of a compound

Answer:Classify each of the following chemical reactions.

S + O2 → SO2

CaCl2 + 2AgNO3 → Ca(NO3)2 + 2AgCl

Zn + CuSO4 → Cu + ZnSO4

2Na2O → 4Na + O

Explanation:

synthesis and combustion

double replacement

single replacement

decomposition only

Answer:

D) The chemical bonding that takes place from the attraction of metal atoms and the surrounding sea of electrons.​

Explanation:

TOOK THE TEST

the chemical bonding or connection that occurs when metal atoms share electrons

The correct answer is A

Chemical bonds that hold molecules together also form temporary connections vital for life. Ionic, covalent, hydrogen, and London dispersion forces are examples of chemical bonding.

An attraction between ions or atoms is referred to as a chemical bond. Atoms trade or exchange valence electrons to create bonds. To reach a complete outer energy level, which is the most stable configuration of electrons, atoms must form chemical bonds.

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Atoms are not created or destroyed in a chemical reaction, they are just rearranged from the reactants to form the products. This is the reason why symbol equations must be balanced.

Answer:

When two or more substances, that do not react chemically, are blended together,

the result is a mixture in which each component retains its individual identity and

properties.

The separation of the components of a mixture is a problem frequently encountered

in chemistry. The basis of the separation is the fact that each component has a

different set of physical and chemical properties. The components are pure substances

which are either elements or compounds. Under the same conditions of pressure and

temperature, the properties of every sample of a pure substance are identical. Each

sample melts at the same temperature, boils at the same temperature, has the same

solubility in a given solvent, etc.

0.06102374 in^3

or in scientific notation would be 1.0 x 10^-6 m^3

Answer:

False

Explanation:

Answer: Evaporation

Explanation: the process of turning from liquid into vapor

Answer:

E. Replacement

Explanation:

A chemical reaction that has the general formula of AB + C --> CB + A is best classified as a replacement.

Answer:

A chemical reaction that has the general formula of AB + C → CB + A is best classified as a reaction.

Explanation:

e- replacement

on edge

Answer: 3.13%

Explanation:

Answer:

3.13

Explanation:

:)

Answer:

question for you how does this app work old tell me

2 moles or 168 g of sodium hydrogen  trioxocarbonate produce 106 g of sodium trioxocarbonate. Thus 16.8 g of sodium hydrogen trioxocarbonate will produce 10.6 g of sodium trioxocarbonate.

Decomposition is a type of chemical change in which the a compound decompose or break into its constituent compounds or molecules.

The decomposition of sodium hydrogen trioxocarbonate is written as follows:

[tex]2NaHCO_{3} \rightarrow Na_{2} CO_{3} + H_{2}O +CO_{2}[/tex]

According to this equation 2 moles or 168 g of sodium hydrogen  trioxocarbonate produce 106 g or one moles of sodium trioxocarbonate. Molar mass of sodium bicarbonate is 84 g thus 2 moles are 168 g.

Thus, the mass of sodium trioxocarbonate formed from 16.8 g of sodium hydrogen trioxocarbonate is calculated as follows:

mass of product = 16.8 × 106 /168 g

                           = 10.6 g.

Hence,  Thus 16.8 g of sodium hydrogen trioxocarbonate will produce 10.6 g of sodium trioxocarbonate.

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Answer: both are solid at room temperture

Explanation:

Answer:

A

Explanation:

Answer:

Iconic bonds don't burn easily

Explanation:

Covalent bonds are non metals. Covalent bond (sharing), low temp, low temp, burn easily, poor, polar covalent is good and non-polar covalent is bad.

Ionic - metals and nonmetals, ionic bond is when electrons are gained or lost, high temp, high temp, doesn't burn easily, good, good

Answer:

Explanation:

what do you mean by bond?

Answer:

1st one: crack

2nd: carefully

Explanation:

Answer:

Crack and then carefully

Explanation:

I just did it in edgen 2020

Answer:

Covalent

Explanation:

Ionic gives or takes electrons

Metallic isn't really a "type" of bond

Answer:

120 g NaCl

General Formulas and Concepts:

Explanation:

Step 1: Define

2.1 moles NaCl (sodium chloride)

Step 2: Define conversions

Molar Mass of Na - 22.99 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of NaCl - 22.99 + 35.45 = 58.44 g/mol

Step 3: Convert (DA)

[tex]2.1 \ mol \ NaCl(\frac{55.84 \ g \ NaCl}{1 \ mol \ NaCl} )[/tex] = 122.724 g NaCl

Step 4: Check

We have 2 sig figs. Follow sig fig rules.

122.724 g NaCl ≈ 120 g NaCl

Energy needed : 1955.03 J

Heat can be formulated:

Q=m.c.Δt

Q=heat,J

m=mass,g

c=specific heat,J/g °C

Δt=temperature, °C

m=87.3 g

Δt= 47.3-22.5=24.8 °C

c=0.903 J/g °C

[tex]\tt Q=87.3\times 0.903\times 24.8=1955.03~J[/tex]

Answer:

A. Ostriches inherited the genes for wings from their ancestors, even though the function of these structures changed.

Explanation:

What we can conclude from this behavior is that ostriches inherited the genes for wings from their ancestors even though the function of these structures have changed.

Answer:

A. The balloons will increase to twice their original volume.

Explanation:

Boyle's law states that the pressure exerted on a gas is inversely proportional to the volume occupied by the gas at constant temperature. That is:

P ∝ 1/V

P = k/V

PV = k (constant)

P = pressure, V = volume.

[tex]P_1V_1=P_2V_2[/tex]

Let the initial pressure of the balloon be P, i.e. [tex]P_1=P[/tex], initial volume be V, i.e. [tex]V_1=V[/tex]. The pressure is then halved, i.e. [tex]P_2=\frac{P}{2}[/tex]

[tex]P_1V_1=P_2V_2\\\\P*V=\frac{P}{2} *V_2\\\\V_2=\frac{2*P*V}{P}\\\\V_2=2V[/tex]

Therefore the balloon volume will increase to twice their original volume.

Answer:

The correct answer is slump

Explanation:

slump,  which occurs when rock and soil slide quickly down a steep slope. Such mass movement is common where road builders have cut highways through hills or mountains.

Answer:

slump

Explanation:

2021 edge