jowl is a derived unit give reason​

Answer:Its D

Explanation:

Trust

Answer:

food source

Explanation:

Got 100%

The specific heat of the substance  : c = 1.044  J/g  °C J/g  °C

Given

Heat absorbed by substance = 989 J

m = mass = 37.9 g

Δt = Temperature difference : 25 °C

Required

The specific heat

Solution

Heat can be formulated

Q = m.c.Δt

Input the value :

989 = 37.9 x c x 25

c = 989 : (37.9 x 25)

c = 1.044  J/g  °C

Answer:

If the water was turned off i would go look for some in a river and filter it out and bring for my family too.

Explain:

Answer:

down the group

Explanation:

its a gas phase because... it is

To solve this we must be knowing each and every concept related to phase diagram. Therefore, the correct option is option D that is  it is in the gas phase.

A phase diagram is a graph that displays a substance's thermodynamic properties at various pressures and temperatures. The areas around the lines depict the substance's phase, while the lines depict the points in which the phases are in balance.

Where planes of equilibrium converge, triple points appear. The situation in which 3 components of matter may coexist is known as a triple point. Using the phase diagram for carbon dioxide, gas phase of carbon dioxide is present at -70°C. The correct option is option D.

Therefore, the correct option is option D that is  it is in the gas phase.

To know more about  phase diagram, here:

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Answer:

B: electronegativity

Explanation:

Electronegativity is the measure of how strongly atoms attract bonding electrons to themselves.

A is incorrect because Atomic radius though decreases as you go from lithium to fluorine of the periodic table. Atomic radius increases when you go from either top to bottom of the periodic table, or if you go from right to left. So answer A is inaccurate.

C is incorrect because in period 2, all the elements have two electron subshells. For example, Al has 13 electrons. So it has two electron subshells. This is since the first subshell has only two valence electrons and while the second subshell in Al has 11 valence electrons. Therefore, it is inaccurate to say this answer.

D is incorrect because in the first shell, you can only have a max of two electrons. The first shell neither decreases or increases. Therefore, D is inaccurate too.

B is correct because as you go from the periodic table from left to right, the electronegativity and ionization energy increases. This is since the more valence electrons an element has, the more electronegative is.  Fluorine for example is desperately trying to get one more electron to have a total of 8 electrons. It wants to have a full shell. Therefore, B is the most relevant answer.

As the chemical elements in Period 2 are considered in order from lithium to fluorine, there is an  increase in: B)  electronegativity.

On a periodic table, the horizontal columns represents the periods of chemical elements in ascending order such as from lithium (Li) to fluorine (F).

Electronegativity can be defined as a measure of the ability (tendency) of an atom of a chemical element to attract any shared pair of electrons.

Generally, the electronegativity of a chemical element typically increases across the period from left to right.

For example,  electronegativity increases from lithium (Li) to fluorine (F) in Period 2 on a periodic table.

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Answer:Photon

Explanation: hope it helped

Answer:

c

Explanation:

Answer:

Eukaryotes and prokaryotes

Explanation:

Answer:

D.   It is converted into kinetic energy.

Explanation:

When a book is dropped from a desk to the floor, the potential energy of the book is converted to kinetic energy as it falls.

Answer:

conduction is the answer

23.459 g NaNO₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Stoichiometry

Step 1: Define

[RxN] H₂SO₄ + 2NaNO₂ → 2HNO₂ + Na₂SO₄

[Given] 24.14714 g Na₂SO₄

Step 2: Identify Conversions

[RxN] 1 mol Na₂SO₄ = 2 mol NaNO₂

Molar Mass of Na - 22.99 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of S - 32.07 g/mol

Molar Mass of Na₂SO₄ - 2(22.99) + 32.07 + 4(16.00) = 142.05 g/mol

Molar Mass of NaNO₂ - 22.99 + 14.01 + 2(16.00) = 69.00 g/mol

Step 3: Stoichiometry

Step 4: Check

Follow sig fig rules and round. We need 5 sig figs (instructed).

23.4587 g NaNO₂ ≈ 23.459 g NaNO₂

Answer:

23.458

Explanation:

I just did the quiz

Answer:

I think I did but if not you can report me

Explanation:

Answer:

you're welcome! :)

Explanation:

Answer:

d, light waves!

Explanation:

Answer:

6.1 cm³

Explanation:

To solve this problem we first need to keep in mind Archimedes' principle:

With that in mind we calculate the volume of the granite piece in mililiters:

Given that one cubic centimeter is equal to one mililiter, the volume of the granite piece in cm³ is 6.1 cm³.

Answer:

R = 40 ohms

Explanation:

Two bulbs have a resistance of 20 ohms when working normally.

When they are placed in series, the combined resistance is given by :

R = R₁ + R₂

We have, R₁ = R₂ = 20 ohms

R = 20 +20

= 40 ohms

Hence, the combined resistance of the two bulbs is 40 ohms.

Answer:

T₂  = 259.84 K

T₂  = -13.31 °C

Explanation:

Given data:

Initial pressure = 700 mmHg

Initial temperature = 30.0°C (30+273.15 K = 303.15 K)

Final temperature = ?

Final pressure = 600 mmHg

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

700 mmHg /303.15 K  = 600 mmHg / T₂

T₂  = 600 mmHg × 303.15 K / 700 mmHg

T₂  =181890 mmHg.K /700 mmHg

T₂  = 259.84 K

Temperature in celsius

259.84 K - 273.15 = -13.31 °C

a. 2683.168 g

b. 2683.168 g

c. 663.468 g

Given

Compounds

Required

The mass

Solution

Mass = mol x MW

a) P4010 (MW=283.9 g mol−1)

mass = 6.15 x 283.9 g mol−1

mass = 1745.985 g

b) AgC2H302 (MW=436.2875 g/mol)

mass = 6.15 x 436.2875 g/mol

mass = 2683.168 g

c) Fe(CN)2 (MW=107.881 g/mol)

mass = 6.15 x 107.881 g/mol

mass = 663.468 g

Answer:

[tex]\boxed {\boxed {\sf About \ 2.127 \ moles \ of \ FeCl_3}}[/tex]

Explanation:

To convert from moles to grams, the molar mass must be used.

1. Find Molar Mass

The compound is iron (III) chloride: FeCl₃

First, find the molar masses of the individual elements in the compound: iron (Fe) and chlorine (Cl).

There are 3 atoms of chlorine, denoted by the subscript after Cl. Multiply the molar mass of chlorine by 3 and add iron's molar mass.

This number tells us the grams of FeCl₃ in 1 mole.

2. Calculate Moles

Use the number as a ratio.

[tex]\frac{162.19 \ g \ FeCl_3}{1 \ mol \ FeCl_3}[/tex]

Multiply by the given number of grams, 345.0.

[tex]345.0 \ g \ FeCl_3 *\frac{162.19 \ g \ FeCl_3}{1 \ mol \ FeCl_3}[/tex]

Flip the fraction so the grams of FeCl₃ will cancel.

[tex]345.0 \ g \ FeCl_3 *\frac{1 \ mol \ FeCl_3}{162.19 \ g \ FeCl_3}[/tex]

[tex]345.0 *\frac{1 \ mol \ FeCl_3}{162.19 }[/tex]

[tex]\frac{345.0 \ mol \ FeCl_3}{162.19 }[/tex]

Divide.

[tex]2.12713484 \ mol \ FeCl_3[/tex]

3. Round

The original measurement of grams, 345.0, has 4 significant figures. We must round our answer to 4 sig figs.

For the answer we calculated, that is the thousandth place.

The 1 in the ten thousandth place tells us to leave the 7 in the thousandth place.

[tex]\approx 2.127 \ mol \ FeCl_3[/tex]

There are about 2.127 moles of iron (III) chloride in 345.0 grams.

Answer:

Two

Explanation:

Answer:

two or more than two elements.

Answer:

Water isn't wet by itself but it makes other materials wet. Like paper, clothes, shoes, etc.

Explanation:

Answer:

A is a physical change, no atoms are being lost its still in it original form

B is a chemical change, it is losing atoms and changing into a new substance

Explanation:

Answer:

26.74g

Explanation:

The equation of the reaction is;

SIO₂ + 3C --> SiC +2CO

From the balanced equation, the relationship between SiC and C is;

3 mol of C produces 1 mol of SiC

Converting mol to mass using; Mass = moles * Molar mass

Mass of SiC = 1 mol * 40.11 g/mol = 40.11g

This means;

3 mol of C produces 40.11g of SiC

2 mol of C produces xg of SiC

3 = 40.11

2 = x

x = 2 * 40.11 / 3 = 26.74g

Answer:

Explanation:

Soil is made up of different components such as the organic matter, mineral content, air and water.

We find nutrient rich soil near volcanoes due to the geological processes involve.

Answer:

its not actually proven its just a hypothesis because they can't dig that deep because of the pressure