Jake put a bottle of water on the desk and left the room. When he came
back, he found water drops on the outside of the bottle. Where did the
water on the outside of the bottle come from?

Answers

Answer 1

Answer:

The air in the room

Explanation:

The diffrent temp of the water compared to the room. The water was colder than the room.


Related Questions

Which best describes a radioactive isotope?

Answers

Answer:

A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.

Answer:

unstable

Explanation:

What mass of methanol (CH3OH) is produced when 140.1 g of carbon
monoxide reacts with 12.12 g of hydrogen?
CO(g) + 2H2(g) → CH2OH()
A. 160.2g
B. 96.12 g
C. 6.06 g
D. 192.2g

Answers

Answer:

B. 96.12 g

Explanation:

To solve this question we must convert each reactant to moles. Using the balanced equation we can find limiting reactant. With moles of limiting reactant we can find the moles of methanol and its mass:

Moles CO -Molar mass: 28.01g/mol-

140.1g CO * (1mol / 28.01g) = 5.0 moles CO

Moles H2 -Molar mass: 2.01g/mol-

12.12g * (1mol / 2.01g) = 6.03 moles H2

For a complete reaction of 5.0 moles of CO are required:

5.0moles CO * (2mol H2 / 1mol CO) = 10.0 moles of H2 are required

As there are just 6.03 moles, H2 is limiting reactant.

The moles of methanol produced are:

6.03 moles H2 * (1mol CH3OH / 2mol H2) = 3.015 moles CH2OH

Mass CH3OH -Molar mass32.04g/mol-:

3.015 moles CH2OH * (32.04g/mol) =

96.6g CH3OH ≈ B. 96.12 g

how many moles are in 54g of sliver

Answers

Answer:

0.50 mols Ag

Explanation:

Given the data, we have:

mass= 54g

molar mass of Silver (Ag): 107.8 g/mol

We want moles, we can convert grams > moles using the molar mass as a "bridge" between the 2.

[tex]54g * \frac{1 mol}{107.8 g}= 0.50 mols Ag[/tex]

Keeping an eye on the units, we'll see 54g get cancelled out by 107.8 g/mol and we'll be left with moles of Silver.

when electrical energy is converted into any other deform of energy, the total amount of energy

Answers

the answer is mechanical

What volume of O2 at STP is required to oxidize 8.0 L of NO at STP to NO2? What volume of NO2 is produced at STP?

Answers

The balanced equation of the reaction is:

[tex]O_2 + 2 NO[/tex] ⇒ [tex]2 NO_2[/tex]

Every gas occupied 24 L in one mole in r.t.p. according to the equation:

[tex]24 \times n = V[/tex]

8/24=0.333 mol

2 moles of NO makes 2 moles of [tex]NO_2\\[/tex] so

0.333*24=8L

If you took 800mg of aspirin tablet at 12:00pm and another 800mg tablet at 2pm, how many milligrams of aspirin are still in your system at 3pm? Aspirin has a t1/2 of 1 hour.

Don't you dare put a link. I have a very specific set of skills >.>
(Chemistry is unfortunately not one of them though, so please help me ^-^)

Answers

Answer:

100mg are in your system at 3pm

Explanation:

Half-life is the time necessary to decrease the initial amount of a substance in the half.

At 12:00pm, the amount of aspirin is 800mg

As half-life is 1h,

at 1:00pm, the amount of aspirin is 800mg/2 = 400mg

At 2:00pm, 400mg/2 = 200mg

At 3:00pm, 200mg/2 =

100mg are in your system at 3pm

When you perform a stoichiometry calculation, you are determining the ...
A) actual yield
B) theoretical yield
C) percent yield

Answers

The actual yield is expressed as a % of the theoretical yield . (Percent yield )

Answer:

B) Theoretical

Explanation:

Just did the question

HELPPP!!!
The emission of electromagnetic energy from an atomic nucleus is called_______
decay.

Answers

Gamma decay, type of radioactivity in which some unstable atomic nuclei dissipate excess energy by a spontaneous electromagnetic process. In the most common form of gamma decay, known as gamma emission, gamma rays (photons, or packets of electromagnetic energy, of extremely short wavelength) are radiated.

To draw a Lewis structure for a covalent compound, begin by calculating A, the available electrons, and N, the needed electrons. What is N for silicon tetrachloride, SiCl4?

Answers

Answer:

To draw a Lewis structure for a covalent compound, begin by calculating A, the available electrons, and N, the needed electrons.

What is N for silicon tetrachloride, SiCl4?

Explanation:

A covalent compound is formed by the mutual sharing of electrons between two atoms.

According to Lewis octet theory, every atom wants to attain eight electrons around it.

For the given molecule SiCl4

Silicon has four valence electrons.

To attain the nearest inert gas configuration it requires four more electrons.

Each chlorine atom shares an electron and thus silicon attains eight electrons in its valence shell.

The Chlorine atom has seven valence electrons.

To get eight electrons in its valence shell it needs one more electron.

That is shared by the silicon atom.

Thus both Si and Cl attain eight valence electrons by sharing electrons and for the covalent bond.

N value for Si is --- 4.

A the available electrons for Si is ---- 4.

The available electrons for Si 4 and the needed electrons are also 4. A covalent compound is formed by the equal sharing of electrons between two atoms.  

   

A covalent compound is formed by the equal sharing of electrons between two atoms.  

According to Lewis octet theory, every atom wants to attain eight electrons in the shell.  

For the given molecule [tex]\bold {SiCl_4}[/tex]  

Silicon has four valence electrons and Chlorine has 7 electrons in the valence shell.  It requires four more electrons to attain the nearest inert gas configuration for silicon and one more electron for chlorine.  Each chlorine atom shares an electron and thus silicon attains eight electrons in its valence shell.  

 

Thus both Si and Cl attain eight valence electrons by sharing electrons and for the covalent bond.  

Therefore,  the available electrons for Si 4 and the needed electrons are also 4.

To know more about Lewis Structure,

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The specific heat capacity of water is 4.186 J/g °C
Calculate the temperature change when 8000 J of heat is added to 3g of water.
Use the equation q=mcT

Answers

Answer:

Solution given:

specific heat capacity of water [c]4.186 J/g °C

temperature[∆T]=?

mass[m]=3g

heat[Q]=8000J

we have

Q=mc∆T

8000=3*4.186*∆T

∆T=8000/12.558

∆T=637.04°C

the temperature change is 637.04°C.

what is used to observe things, like cells, that are too small to see with the naked eye.

Answers

A microscope is an instrument that can be used to observe small objects, even cells. This lens bends light toward the eye and makes an object appear larger than it actually is. ...

Answer:

a microscope is used to see little things the naked eye can't

Which of the following measurements contains 2 significant figures?
A 0.0240
С 0.0901
B 371
D 1.0x10
E 0.004

Answers

The answer would be 371 because it has multiple complete digits

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4? Which is the net ionic equation for the reaction?

Answers

Answer:

See explanation

Explanation:

A balanced chemical reaction equation has the same number of atoms of each element on both sides of the reaction equation.

Hence, for the reaction between KOH and H2SO4, the balanced chemical reaction equation is;

H2SO4(aq) + 2KOH(aq) ---------> K2SO4(aq) + 2H2O(l)

Complete ionic equation;

2H^+(aq) + SO4^2-(aq) + 2K^+(aq) +2OH^-(aq) -------> SO4^2-(aq) + 2K^+(aq) + 2H2O(l)

Net ionic equation;

2H^+(aq) + 2OH^-(aq) -------> 2H2O(l)

An ion and its parent atom differ in....? 1) All of the options are correct 2) electron configuration. 3) chemical reactivity. 4) number of electrons.

Answers

An ion is different from its parent atom by having a different number of electrons. ... A: The octet rule describes how atoms form stable ions by gaining or losing electrons to fill their outer s and p orbitals with eight electrons.

Lithium chloride + Iron → ?

Answers

Answer:

Lithium chloride + Iron

No reaction takes place, because lithium is more reactive than iron, so Iron cannot displace lithium from its solution.

Hope u understand

Please mark as brainliest

Thank You

HNO3 + S --> H2SO4 + NO Now identify the element oxidized and the element reduced. Which element is oxidized? Which element is reduced? Which elements undergo no oxidation or reduction?

Answers

Answer: S is getting oxidized, N is getting reduced and O and H undergo no oxidation or reduction

Explanation:

The oxidation reaction is defined as the reaction in which a chemical species loses electrons in a chemical reaction. It occurs when oxidation number of a species increases.

A reduction reaction is defined as the reaction in which a chemical species gains electrons in a chemical reaction. It occurs when oxidation number of a species decreases.

For the given chemical reaction:

[tex]HNO_3+S\rightarrow H_2SO_4+NO[/tex]

On the reactant side:

Oxidation number of H = +1

Oxidation number of N = +5

Oxidation number of O = -2

Oxidation number of S = 0

On the product side:

Oxidation number of H = +1

Oxidation number of N = +2

Oxidation number of O = -2

Oxidation number of S = +6

As the oxidation number of S is increasing from 0 to +6. Thus, it is getting oxidized. Similarly, the oxidation number of N is decreasing from +5 to +2. Thus, it is getting reduced.

The oxidation numbers of O and H remain the same on both sides of the reaction. Thus, they are neither getting oxidized or reduced.

Hence, S is getting oxidized, N is getting reduced and O and H undergo no oxidation or reduction

ano ang kahulugan ng sekswalidad?

Answers

ano ang naakit sa isang tao..at kung ano ang iyong kasarian ay

QUICK PLEASE
What is the final concentration when 275 mL of 20.0 % W/V hydrogen peroxide solution is diluted to 1.000 L?

20.0 % W/V
0.30 % W/V
55.0 % W/V
5.50 % W/V

Answers

Answer:

20.0% w/v A

Explanation:

A 20.0 w/V...

How many moles are in 3.90 x1030 atoms of Zn?

Answers

Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need
6.022 x 10^23 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have


3.90 x 10^ 26 atoms Zn x 1 mole Zn ( Avogrado’s constant) / 6.022 x 10^23 atoms Zn

= 6.5 x 10^8 is the answer

Write a neutralization reaction to form the salt k2so4

Answers

H2SO4 + 2KCL ----------› K2SO4 + 2HCL

hope it helps you ♡♡

Se tiene una solución acuosa 2M de carbonato de potasio. Expresar su concentración en %p/v y Normalidad.

Answers

Answer:

Normalidad = 4N

%p/V = 27.6%

Explanation:

La solución 2M de carbonato de potasio contiene 2moles de carbonato por litro de solución. La normalidad son los equivalente de carbonato de potasio (2eq/mol) por litro de solución:

2moles * (2eq/mol) = 4eq / 1L = 4N

El porcentaje peso volumen es el peso de carbonato en gramos dividido en el volumen en mL por 100:

%p/V:

Masa K2CO3 -Masa molar: 138.205g/mol-

2moles * (138.205g/mol) = 276g K2CO3

Volumen:

1L * (1000mL/1L) = 1000mL

%p/V:

276g K2CO3 / 1000mL * 100

%p/V = 27.6%

what makes a compound a pure substance ​

Answers

Answer:

Compounds contain more than one type of material. Yet both compounds and elements are considered pure substances. 

Pure compounds are created when elements combine permanently, forming one substance

Extra:

So, a mixture can be separated into its original components, while a pure compound cannot.

Which statement about Niels Bohr’s atomic model is true?

Answers

Answer:

Each orbit has a specific energy level.

Would you mind marking it the brainliest:).

At the carnival, a baby was given a helium balloon whose
pressure equaled the atmospheric pressure at the carnival
which was 102.7 kPa. However, the baby wasn't paying
attention and the balloon floated away into the troposphere
where the atmospheric pressure is 97.8 kPa. What is the
positive difference between the pressure in the balloon and
the pressure of the troposphere in atm?
atm

Answers

Answer: 0.048 kPa

Explanation: no clue i just looked it up you’re welcome y’all:)

Can you please help me with this?

What happens with the evaporation of raindrops in the atmosphere?

Answers

Answer:

they become water vapor and after that, they become a type of precipitation

The evaporation of a drop of water in an air stream is determined by the rate of transfer of heat and water vapour between the drop surface and the ambient air. If these transfer processes are governed by molecular diffusion the appropriate equations take a well known form. I hope this can help

How many molecules are in 0.0230 grams of C3H6?

Answers

I think so the answer is 0.0005465813239340357

Si de una caja de gelatina de 30g, se obtiene 5 porciones. Cuantas cajas y cuantos gramos se requieren para preparar 100 porciones.? respuestas concretas por fis

Answers

Answer:

20 cajas - 600 gramos

Explanation:

Veamos los datos informados:

1 caja → 5 porciones

1 caja → 30 g

Si queremos preparar 100 porciones, indudablemente necesitamos:

100 porciones . 1 caja / 5porciones = 20 cajas

Finalmente ya sabemos que una caja tiene 30 g

Entonces, si tenemos 20 cajas . 30 g / 1 caja = 600 g

En conclusión:

Necesitamos una masa total de 600 gramos  en 20 cajas

Complete the missing information in the reactions. Then, label each reaction as Alpha
(a) or Beta (B) decay.
14
0
N
9
Type: :
n:
p:
n:
p:
n:
P:
238
U
10. 92
234
Th
90
+
Type: :
n:
n:
p:
n:
p:
I
p:
0
32
11 15
P
Type: :
n:
n:
n:
p:
P:
P:
4
244
Pu
12 94
He
Type:
n:
n:
n:
p
p:
p:

Answers

Answer:

rtyuioroiytryu

Explanation:

How is an alkoxide ion formed??

Answers

An alkoxide is an organic functional group formed when a hydrogen atom is removed from a hydroxyl group of alcohol when reacted with a metal. It is the conjugate base of alcoho.
The answer above is completely correct :)

If you sprain your ankle and place a cold pack on it, how does the motion of molecules in your ankle change?​

Answers

Answer:

that heat energy speeds up the motion of the particles and the temperature of the reaction

Explanation:

HOPE IT HELPS

When we place an ice pack on a sprained ankle, the blood flow is reduced which prevents  further swelling, ice reduces the blood flow which is necessary  when  the ankle is injured.

What happens  after placing an ice pack?

The flow of blood and the lymph vessel is limited or decreased after applying an ice pack, this is an immediate  first aid to be given to the injured person

After 2-3 days of the injury, a hot  pack should  be applied to increase the blood flow and the lymph flow for an activity.

Hence, the molecule flow is reduced after applying an ice pack to the sprained ankle

learn more about molecules

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