A company known as arten industries is wanting to build a factory in the watershed that is pictured

The organism in the bethic zone can survive in such high pressure area. This is because the organism there have no air pockets that provides them the ability to be balanced in the water

a hearing aid.

it doesn't get in contact with fluids (like contact lenses) and doesn't get implanted, so it got not much to do with the immune system

Answer:

hearing aid

Explanation:

i just took tha test

Answer:

C. A model of a water molecule

Explanation:

H20, model shows 2 H,s (H2) and 1 O (O) which makes H2O. It's a model and not a real life picture of a molecule.

Answer:

Explanation:

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Answer:

D. Element.

Explanation:

Atoms form elements. Elements form molecules. Molecules form compounds.

Answer:

H=MC∆T

Heat = Heat absorbed or given off

M=Mass

C=Specific Heat Capacity of substance (Water in thus case). It has a Specific Heat capacity of 4200J/kg.k

∆T= Temp Change (T2-T1)

I'll solve with My Heat in Joules.

The heat is given in Calorie

1Cal = 4.186J

2500cal = 10,465J.

∆T= H/MC

=10465/0.15(4200)

=16.6°C

∆T=16.6

T2 - T1 = 16.6

T2 = 16.6+T1

T2 = 16.6 + 23

T2 = 39.6

Approx. 40°C

N2 should be the gas to effuse more slowly

Answer:

2,3–dimethylpentane

Explanation:

To know which option is correct, we shall determine the name of the compound.

To obtain the name of the compound, do the following:

1. Determine the longest continuous carbon chain. This gives the parent name of the compound.

2. Identify the substituent group attached to the compound.

3. Locate the position of the substituent group by giving it the lowest possible count.

4. Combine the above to obtain the name of the compound.

Now, we shall determine the name of the compound as follow:

1. The longest continuous carbon chain is 5. Thus, the parent name of the compound is pentane.

2. The substituent group attached is methyl (–CH₃)

3. There are two methyl group attached to the compound. One is located at carbon 2 and the other at carbon 3.

4. Therefore, the name of the compound is:

2,3–dimethylpentane

None of the options are correct.

Answer:

[tex]P_2=1.48atm[/tex]

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to infer this problem is about the application of the Gay-Lussac's gas law to relate the initial and final pressure and temperature as shown below:

[tex]\frac{P_2}{T_2} =\frac{P_1}{T_1\\ }[/tex]

Thus, solving for the final pressure, P2, and using the temperatures in Kelvins, we obtain:

[tex]P_2 =\frac{P_1T_2}{T_1 }\\\\P_2 =\frac{1atm*403.15K}{273.15K}\\\\P_2=1.48atm[/tex]

Regards!

Answer:

Explanation:

1s22s22p6: Ne 1s22s22p63s23p3: P 1s22s22p63s23p64s1: K 1s22s22p63s23p64s23d8: Ni 1s22s22p63s23p64s23d104p65s24d3: Nb

We have that an element  indicated by its electron configuration, we can determine its Atomic number by selecting the electron represented on each orbit of the atom around the nucleus

Hence using the  Periodic table to read the its Atomic Number

The Periodic table is categorized using the atomic number of elements and symbols are  to aid search as well

For an element  indicated by its electron configuration we can determine its Atomic number by selecting the electron represented on each orbit of the atom around the nucleus

Hence using the  Periodic table to read the its Atomic Number

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Answer:

p=nRT/V

v=nRT/P

n=PV/RT

t=PV/nR

Answer:

[tex]4 * 10^{-5}cm = 0.00004cm[/tex]

Explanation:

Given

[tex]4 * 10^{-5}cm = [\ ]cm[/tex]

Required

Solve

Apply law of indices

[tex]4 * \frac{1}{10^5}cm = [\ ]cm[/tex]

Evaluate 10^5

[tex]4 * \frac{1}{100000}cm = [\ ]cm[/tex]

[tex]4 * 0.00001cm = [\ ]cm[/tex]

[tex]0.00004cm = [\ ]cm[/tex]

Hence:

[tex]4 * 10^{-5}cm = 0.00004cm[/tex]

Answer:

Q = 5949.35 J

Explanation:

Given that,

The mass of water, m = 189.5 grams

Initial temperature, T = 16.4 °C

Final temperature, T' = 8.9°C

We need to find the thermal energy the water use to melt the ice cube. The thermal energy is given by :

[tex]Q=mc\Delta T[/tex]

Where

c is the specific heat of the water, c = 4.186 joule/gram °C

So,

[tex]Q=189.5\times 4.186 \times (8.9-16.4)\\Q=-5949.35\ J[/tex]

So, the required amount heat is equal to 5949.35 J.

Answer:

0.342 mol

Explanation:

Molar mass of  

NaCl = 58.4 g/mol

Number of moles in  

20.0 g NaCl

is

20.0

g

58.4

g

/mol

=

0.342 mol

Answer:

is your answe b?

Explanation:

Im really asking

Answer:

True

Explanation:

Trust me

Answer:

True. Kinetic energy is the energy of motion. All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward.

Answer:

4500

Explanation:

p1v1=p2v2

9 x 500= v2 x1

v2= 4500 ml

Explanation:

The ozone layer is a natural layer of gas in the upper atmosphere that protects humans and other living things from harmful ultraviolet (UV) radiation from the sun. ... The ozone layer filters out most of the sun's harmful UV radiation and is therefore crucial to life on Earth.

Answer:

3.2x10⁻⁶M of sulfate ion can be added

Explanation:

The solubility of SrSO4 is:

SrSO4(s) → Sr²⁺(aq) + SO₄²⁻(aq)

Where Ksp is defined as:

Ksp = 3.2x10⁻⁷ = [Sr²⁺] [SO₄²⁻]

The concentration of Sr is:

0.10mol / 1L = 0.10M = [Sr²⁺]

Replacing in Ksp:

3.2x10⁻⁷ = [0.10M] [SO₄²⁻]

[SO₄²⁻] = 3.2x10⁻⁶M of sulfate ion can be added

Answer:

Exothermic

Explanation:

Exothermic reactions RELEASE heat as a product.

If you were to see "heat" or "energy" above the reaction arrow, then it would be endothermic.

Explanation:

उत्तर : गुरुत्वाकर्षण का सार्वत्रिक नियम :

इस विश्व का प्रत्येक पिंड दूसरे पिंड को एक बल से अपनी ओर आकर्षित करता है जो दोनों पिंडों के द्रव्यमानों के गुणनफल के समानुपाती होता है तथा उनके बीच की दूरी के वर्ग के व्युत्क्रमानुपाती होता

Answer:

7.65 moles of silver are produced

Explanation:

Zinc, Zn, reacts with silver nitrate, AgNO3, as follows:

Zn + 2AgNO3 → Zn(NO3)2 + 2Ag

Where 1 mole of Zn reacts with an excess of AgNO3 to produce 2 moles of Ag

To solve this question we must convert the mass of Zn to moles and, using the chemical equation, we can find the moles of Ag as follows:

Moles Zn (Molar mass: 65.38g/mol):

250g Zn * (1mol / 65.38g) = 3.824 moles Zn

Moles Ag:

3.824 moles Zn * (2mol Ag / 1mol Zn) =

Answer:

pollution

as all the other terms mentioned are beneficial for our biodiversity

Answer:

The Lewis dot structure is not correct

Explanation:

Each atom ought to be surrounded by eight electrons or two electrons according to the octet rule. We now need to closely examine the structure to see if it fits into this description.

All the atoms in the molecule have the correct valence except the hydrogen which is directly attached to the oxygen.

The positive charge ought to mean that more than two bonds were formed between hydrogen and oxygen which is clearly not the case here.

Thus, the hydrogen atom attached directly to oxygen does not display the correct valence.

Answer:

Run Off

Explanation:

Answer:

Explanation:

Sulfur trioxide, ammonia gas, and water will react to form ammonium sulfate. Determine the percent yield when 3.78 g of ammonium sulfate forms from the reaction of 2.51 g of sulfur trioxide, 1.55 g of ammonia, and 0.804 g of water. Can you please show step by step on how you got the answer thanks!

-

First, the balanced equation:

1 SO3 + 2 NH3 + 1 H2O --> 1 (NH4)2SO4

Find the limiting reactant using molar masses and mole ratios

2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) = 0.03135 mol (NH4)2SO4

1.55 g NH3 (1 mol NH3 / 17.04 g NH3) (1 mol (NH4)2SO4 / 2 mol NH3) = 0.04548 mol (NH4)2SO4

0.804 g H2O (1 mol H2O / 18.02 g H2O) (1 mol (NH4)2SO4 / 1 mol H2O) = 0.04462 mol (NH4)2SO4

Therefore, the limiting reactant is sulfur trioxide.

Now find the theoretical yield of (NH4)2SO4.

2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) (132.16 g (NH4)2SO3 / 1 mol (NH4)2SO4) = 4.14 g (NH4)2SO4

Actual yield / Theoretical yield x 100% = Percent yield.

Therefore, percent yield = 91.3%

hoppe it helps

Sulfur trioxide, ammonia gas, and water will react to form ammonium sulfate. Hence,the percent yield is 91.3%.

The percentage yield displays the amount of product produced in relation to the maximum mass. The proportion of atoms in the reactants that go on to produce the intended product is determined by the reaction's atom economy.

The balanced chemical equation is as follows:

1 SO3 + 2 NH3 + 1 H2O ⇒ 1 (NH4)2SO4

Find the limiting reactant by using molar masses and mole ratios as follows:

2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3)

= 0.03135 mol (NH4)2SO4

1.55 g NH3 (1 mol NH3 / 17.04 g NH3) (1 mol (NH4)2SO4 / 2 mol NH3)

= 0.04548 mol (NH4)2SO4

0.804 g H2O (1 mol H2O / 18.02 g H2O) (1 mol (NH4)2SO4 / 1 mol H2O)

= 0.04462 mol (NH4)2SO4

Hence, the limiting reactant is sulfur trioxide.

Then, find the theoretical yield of (NH4)2SO4.

2.51 g SO3 (1 mol SO3 / 80.06 g SO3) (1 mol (NH4)2SO4 / 1 mol SO3) (132.16 g (NH4)2SO3 / 1 mol (NH4)2SO4)

= 4.14 g (NH4)2SO4

Actual yield / Theoretical yield x 100% = Percent yield.

percent yield = 91.3%

Thus, the percent yield is 91.3%.

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Answer:

454

Explanation:

j

Answer:

equal numbers of protons and neutrons

Answer:

6.2 days

Explanation:

initial activity = 40,000 cpm

one half-life = 20,000 cpm

two half-lives = 10,000 cpm

three half-lives= 5,000 cpm

four half-lives = 2500 cpm

24.8 days/4 half-lives = 6.2 days/ half-life