The electronegativity values of carbon, hydrogen, and nitrogen are compared in the table.
Comparison of
Electronegativity
Element Electronegativity
Carbon
2.5
Hydrogen 2.1
Nitrogen 3.0
Which of the following statements is true about the strength of the intermolecular forces in CH4 and NH3? (4 points)

Answer:

a. Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction

b. Sugarsolution is a homogeneous mixture because any substance dissolved in water becomes a homogeneous mixture

Answer:

Quartz was discovered in 1880 and they use buldozers and backhoes (to remove dust/dirt around it) and rarely explosives.

Explanation:

Answer:

Lithium will lose about 2 electrons

Making it a cation

Answer:

about three

Explanation:

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Answer:

E.  potassium (K) and bromine (Br)

Explanation:

An ionic bond is formed between compounds with a large electronegativity difference between them. It is usually between a metal and non-metal.

Answer:

Correct answer: E.  potassium (K) and bromine (Br)

Explanation:

(Correct answer for (portal and Edmentum users too)

Hope I was helpful :) good luck on your school work and have a great day

Answer:

Air Current

Explanation:

Say I am in California and there is a massive fire next to me but not close enough to me to really see the fire and the next day I see no fire but theres a ton of ash in the sky, this can be due to the wind current taking the smoke from the fire into my direction and that smoke falling in my area. So basically a wind current can take the smoke from a fire into another destination and cause a rapid change in air quality in a day.

Answer:

To obtain a more accurate read on temperature, the researcher should make sure to measure temperature by Celsius degrees rather than Fahrenheit.

Explanation:

Temperature is a measure of heat intensity. In food science experiments, you should always require an exact description of heat intensity. The most commonly used unit of temperature in the laboratory is the Celsius degree because the Celsius temperature scale is based on the boiling and freezing points of pure water. The difference between the points of boiling and freezing temperatures (at 1 atmosphere of air pressure) is divided into 100 equal units, making a Celsius degree 0.01 of the difference between the boiling and freezing points of water, making it the most accurate method of exact temperature reading. It is important to use the Celsius scale if you have a thermometer that reads Celsius and Fahrenheit.

Answer:

Aargon is NOT the answer.

Explanation:

Answer:

1.9139 × 10²⁴ atoms Ca

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

127.38 g Ca

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of Ca - 40.08 g/mol

Step 3: Convert

[tex]127.38 \ g \ Ca(\frac{1 \ mol \ Ca}{40.08 \ g \ Ca} )(\frac{6.022 \cdot 10^{23} atoms \ Ca}{1 \ mol \ Ca} )[/tex] = 1.91388 × 10²⁴ atoms Ca

Step 4: Check

We are given 5 sig figs. Follow sig fig rules and round.

1.91388 × 10²⁴ atoms Ca ≈ 1.9139 × 10²⁴ atoms Ca

Answer:

yes

Explanation:

that is the answer

Answer: strike-slip fault

Explanation:

Answer:

C; strike split

Explanation:

Answer:

Explanation:

A .

Answer:

3=a 5=b 4=d 2= b yea that's pretty much the answers

Answer:

The initial temperature of the metal is 84.149 °C.

Explanation:

The heat lost by the metal will be equivalent to the heat gain by the water.  

- (msΔT)metal = (msΔT)water

-32.5 grams × 0.365 J/g°C × ΔT = 105.3 grams × 4.18 J/g °C × (17.3 -15.4)°C

-ΔT = 836.29/12.51 °C

-ΔT = 66.89 °C

-(T final - T initial) = 66.89 °C

T initial = 66.89 °C + T final

T initial = 66.89 °C + 17.3 °C

T initial = 84.149 °C.

Answer:

Required heat = 6,787.8 j (Approx)

Explanation:

Given:

Mass of water = 135 g = 0.135 g

Specific heat of water = 4.19 J/g-C

Change in temperature = 27 - 15 = 12 degrees Celsius

Find:

Required heat

Computation:

Required heat = mcΔt

Required heat = (135)(4.19)(12)

Required heat = 6,787.8 j (Approx)

Answer:

This is simple, if it has a high flammability, and you light it on fire, then that would be a chemical change.

Explanation:

May I have brainliest please? :)

The corresponding mRNA to 5'AAAACTGTGCAT3' is

3'UUUUGACACGUA5'.

Nucleotides are the bases that are arranged in a specific way, and it joins the two strands of DNA and RNA.

In DNA, four nucleotide bases are present AT and GC. They are attached to each other.

In RNA, the same bases are present but instead of T, U uracil is present.

When reading the DNA, the RNA bases complimentary join with the bases of DNA.

Thus, the corresponding mRNA sequence is 3'UUUUGACACGUA5.

Learn more about base sequence

https://brainly.com/question/17997743

Nitrogen is reactive I think

Answer:

D Protons/negative; neutrons/neutral; electrons/negative

Explanation:

There are three fundamental subatomic particles found in atom which are the protons, neutrons and electrons.

In the tiny central nucleus, both protons and neutrons can be found

The electrons occupy the bulk volume of the atom.

Answer:

151.1J

Explanation:

Given parameters:

Mass of iron  = 6.21g

Initial temperature of iron  = 25°C

Final temperature of iron  = 79.8°C

Unknown:

Amount of heat = ?

Solution:

The amount of heat require to cause this temperature can be determined using the expression below;

    H  = m c (T₂ - T₁)

H is the amount of heat

m is the mass

c is the specific heat capacity

T is the temperature

    Specific heat capacity of iron 0.444J/g°C

Insert the parameters and solve;

     H  = 6.21 x 0.444 x (79.8 - 25)

     H   = 151.1J

Answer:

Explanation:

3 N₂ (g)  + 2  O₃ (g)   →     6 NO (g)

Δ H(rxn ) = 90.37x 6 - ( 0 + 142.26 x 2 )

= 542.22  - 284.52

= 257.7 kJ

Δ S(rxn ) = 6 x 210.6 - ( 2 x 237.7 + 3 x 191.5 )

= 1263.6 - ( 475.4 + 574.5 )

= 213.7 J / K

Δ G = Δ H - T Δ S

= 257.7 - 350  x 213.7

= - 74537.3 kJ  .

Δ G / mole = - 74537.3 / 6 = - 12422.88 kJ / mol.

Answer:

Volume is the amount of space taken up an object.

Explanation:

 We are to write the orbital notation and electronic configuration of sulfur and iron.

The orbital notation shows the filling of electrons into orbitals or sublevels.

Electron configuration  shows the distribution of electrons into shells;

        Number of electrons     Electron configuration     Orbital notation

S                  16                                   2 8 6                      1s² 2s² 2p⁶ 3s² 3p⁴

Fe                26                                2, 8, 14 2           1s² 2s² 2p⁶ 3s² 3p⁶3d⁶4s²        

Antimony

Hope it helps

Answer:

[tex]\boxed {\boxed {\sf 1. \ Antimony}}[/tex]

Explanation:

A metalloid is an element that is "in between" a metal and non-metal. They display some properties of both.

On the Periodic Table, the metalloids are found in a zig-zag step pattern to the right of the metals and the left of the non-metals.

There are 7 metalloids: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.

So, the correct answer is 1. Antimony

Answer:

i had this same question and the answer is electron.

Explanation:

Answer:

NaCl

Explanation:

HCI is a poiar covalent compound while ℂI4 is a non-polar covalent compound because both are iormed by sharing of electrons. KCl and NaCl are formed by the transfer of electrons and are ionic compounds.

Answer:

Tell picture above is a sample of tell me about yourself

Answer:

Transparent Rock Crystal has many electronic uses; it is used as oscillators in radios, watches, and pressure gauges, and in the study of optics. Quartz is also used as an abrasive for sandblasting, grinding glass, and cutting soft stones.

Explanation:

To Find :

At what distance above the surface of the Earth is the acceleration due to Earth gravity 0.95 meter per second  square​.

Solution :

Let, acceleration due to gravity at height h is [tex]g_h[/tex].

[tex]\dfrac{g_h}{g}=\dfrac{R^2}{(R+h)^2}\\\\\dfrac{(R+h)}{R}=\sqrt{\dfrac{9.8}{0.95}}\\\\\dfrac{(R+h)}{R}=3.2\\\\h = 3.2R - R\\\\h = 2.2R\\\\h = 2.2\times 6400 \ km \\\\h = 14080\ km[/tex]

Therefore, the height is 14080 km.

Hence, this is the required solution.

Answer:

nuts in yo mouth

Explanation:

Answer:

I'm not 100% sure but it's not A or B. It's probably cc

Explanation:

Answer:

An ionic bond

Explanation:

They are most likely going to form an ionic bond.

An ionic bond is where atoms lose/gain electrons.

It is easier for elements in the first group to lose the one electron on their valence shell and for elements in the second group to take that.

Some examples are Sodium Chloride (NaCl) and Potassium Chloride (KCl)