The energy transformations are similar because they both involve transformations that

begin with chemical energy.
begin with electrical energy.
result in radiant energy.
result in mechanical energy.

Answer:(c)

Explanation:

Explanation:

Answer:

[tex]C_{36}[/tex][tex]H_{32}[/tex][tex]Cl_{4}[/tex][tex]N_{6}[/tex][tex]O_{4}[/tex]

An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.

Answer:

I think so too

Explanation:

Answer:

6

Explanation:

Answer:

c

Explanation:

Answer:

chlorophyll

Explanation:

Answer:

Calcium is a Group 2 metal. Fluorine is a Group 17 gas. Towards the right of the Periodic table, ELEMENTS tend to get smaller as the increased nuclear charge exerts a greater attractive force on the valence electrons. The small fluorine atom tends to attract electrons, and is energetically most stable when it forms the  F −  ion.  On the other hand, calcium is a large Group 2 metal. It has 2 valence electrons, which are in the valence (the outermost) shell, and nuclear charge is somewhat diminished for these electrons. Calcium tends to be oxidized (to lose electrons) to form  C  a  2 +  ions.  So if calcium and fluorine want to make music together (or at least form a chemical bond), then a formula of  (C  a  F  2)  is entirely reasonable (why? because this combination is electrically neutral!). And in fact in nature the mineral fluorite ( C  a F 2 ) is very widespread.

Mass of LiOH= 23.95 grams ≈ 24 g

Given

1 mole of lithium hydroxide (LiOH)

Required

Mass of LiOH

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

n = mass : molar mass

Input the value :

mass = n x molar mass

mass = 1 mole x 23,95 g/mol

mass = 23.95 grams ≈ 24 g

The mass of 1 mole LiOH has been 24 g. Thus, option D is correct.

The mass of a compound present in a mole of sample has been equivalent to the molar mass of the compound. The molar mass of the compound has been the sum of the constituent in a formula unit.

The molar mass of lithium hydroxide (mwt) has been given as:

[tex]mwt=m_L_i\;+\;m_O\;+\;m_H[/tex]

Where, the mass of Li is [tex]m_L_i=6.941\;\rm g[/tex]

The mass of oxygen is [tex]m_O=16\;\rm g[/tex]

The mass of hydrogen is [tex]m_H=1\;\rm g[/tex]

Substituting the values for molar mass (mwt) of LiOH:

[tex]mwt=6.941\;+\;16\;+\;1\;\text g\\mwt=23.941\;\text g\\mwt=24\;\text g[/tex]

The molar mass of LiOH has been 24 g.

The molar mass has been equivalent to the mass of 1 mole of sample. Thus, the mass of 1 mole LiOH has been 24 g. Thus, option D is correct.

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Answer:

dense and humid

Explanation:

Answer:

Part A) By seeing if your hands are clean and dont have germs

Part B) Dip your hands in mud and then wash your hands to see results

Explanation:

Answer:

2.00moles

Explanation:

mol=mass/mr

88.02/ [12+2(16)] = 2.00

CuSO4 is Copper Sulphate.

Answer:

the water has greater salinity

Explanation:

The term "Salinity" refers to the amount of salt present in water. Recall that the amount of solute increases when the volume of solution decreases. This is because the amount of substance present in a solution depends on the volume of the solution.

Hence, as water evaporates, the volume of the solution decreases and the salinity (amount of salt present) increases.

Answer:

the water has greater salinity

Explanation:

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find the one out of place

Answer:

i thing by filtering

Explanation:

Volume of each solution : 60 ml 20% and 40 ml 45%

Given

20% and 45% acid

100 ml of 30% acid

Required

Volume of each solution

Solution

Molarity from 2 solutions :

Vm Mm = V₁. M₁ + V₂. M₂  

m = mixed solution

V = volume

M = molarity

V₁ = x ml

V₂ = (100 - x) ml

Input the value :

100 . 0.3 = x . 0.2 + (100-x) . 0.45

30 = 0.2x+45-0.45x

0.25x=15

x= 60 ml

V₁ = 60 ml

V₂ = 100 - 60 = 40 ml

For the preparation of the 30% 100 ml acid solution, 40 ml 45% solution has been mixed with 60 ml 20% acid solution.

To prepare the solution with the concentrated solution:

MV = M1V1 + M2V2

The M has been the concentration of the resulted solution, and V has been the volume of the resulting solution.

M1 and M2 and V1 and V2 have been the concentration and volume of the given solution.

0.30 × 100 ml = 0.20 × x + 0.45 × (100 - x)

30 = 0.20x + 45 - 0.45x

0.45x - 0.20x = 45 - 30

0.25x = 15

x = 60 ml

The volume of 20% solution has been x = 60 ml

The volume of 45% solution has been 100 - x = 40 ml.

For the preparation of the 30% 100 ml acid solution, 40ml 45% solution has been mixed with 60ml 20% acid solution.

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Answer: 220 g

Explanation:

To find the answer to this problem, all you need to do is multiply the number of moles by the molar mass of the molecule.

In this problem, you multiply 44 (the molar mass of CO2) by 5 (the grams of CO2 given) to get 220.

Answer:

220 g

Explanation:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CO2, or 44.0095 grams.

Explanation:

B. HCIO these is the answer

The option that is a conjugate acid of ClO would be (B), HCIO..

A conjugate acid is formed when a base gains a proton. In this case, the base is ClO, which has a negative charge. When ClO gains a proton, it becomes HCIO, which has a positive charge.

The other options are not conjugate acids of ClO because they do not have a positive charge. CL is the neutral form of chlorine, and it cannot gain a proton to become a conjugate acid. Clot is not a chemical compound, and it does not exist.

In conclusion, option B is correct.

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Answer:

Explanation:

CH₃OH    +    CO    =    CH₃COOH .

32 g           28 g               60 g

CH₃OH = 15 g ;  CO = 10 g

32 g of CH₃OH  reacts with 28 g of CO

15 g of CH₃OH reacts with 28 x 15 / 32 g of CO

= 13.125 g of CO .

CO given = 10 g , so CO is the limiting reagent .

28 g of CO reacts with CH₃OH  to produce 60 g of CH₃COOH

10 g of CO reacts with CH₃OH  to produce 60 x 10 / 28  g of CH₃COOH

CH₃COOH produced = 600 / 28 g = 21.42 g .

Answer: CO

Explanation:

Answer:

es la letra a)

Explanation:

síganme en insta

Answer:

I think the third one

A ball kicked straight up slows down as it moves upward because the force given to the ball by the kick completely runs out. Thus, the correct option is C.

Gravitational force of the planet earth acts on every object which has some mass. When an object is thrown upwards the gravitational force of the earth acts against the velocity of the object such as ball and pulls the object downwards, i.e., towards itself on the ground. Thus, the object returns back towards the surface of earth.

The direction of a ball's motion while thrown upward is changing as it rises into the air when thrown. The speed of the ball decreases because the force of gravity pulls it towards the ground and makes the distance it covers decrease.

Therefore, the correct option is C.

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Answer:

The way you can determine which is the unknown metal is measuring for denstity, compare the results and that should give you the unknown metal you are trying to find.

Density is the unit volume occupied by a given mass of a material

Specific heat capacity is the required heat that raises a given mass of substance temperature by one degree

Reasons:

The possible values in the table of values in the table for the question are;

[tex]\begin{array}{|l|c|c|}\mathbf{Metal}&\mathbf{Atomic \ Mass \ Unit}&\mathbf{Sprecific \ Heat \ Capacity}\\Zinc&65.4&0.38\\Titanum&47.9&0.52\\Tin&118.7&0.22\\Copper&63.5&0.38\\Barium&137.3&0.19\\Aluminum&27.0&0.90\end{array}\right][/tex]

Given that the experimental value for the specific heat capacity of your unknown is 0.37 J/(g·°C), to determine positively which metals in Table 3 is your unknown, we have;

The given difference between the two metals can be used to determine the unknown metal as follows;

Atomic mass unit of copper = 63.5 amu

Atomic mass unit of zinc = 65.4 amu

The given mass of the unknown metal rod is 86.5 g

The density of zinc is 7.133 g/cm³

The density of copper is 8.96 g/cm³

The volume of water displaced by the 86.5 g of the metal is therefore;

For zinc:

[tex]Volume = \dfrac{86.5}{7.133} \approx 12.127[/tex]

The volume of water displaced if the unknown metal is a zinc rod is 12.127 cm³

For copper, we have:

[tex]Volume = \dfrac{86.5}{8.96} \approx 9.654[/tex]

A metal sample of zinc displaces (12.127 - 9.654 = 2.743) 2.743 cm³ more water than copper, in the calorimeter

Therefore;

The volume of water displaced in the calorimeter will be 12.127 cm³ if the metal is zinc while 9.654 cm³ will be displaced if the metal is copper

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Answer:

Explanation:

The ingredients are warm ocean water, weak upper level winds, and low pressure. The warm ocean water supplies the moisture for the hurricane. The weak upper levels winds allow the developing hurricane to not tear apart, and the low pressure allows thunderstorms to develop.

Answer:

The new volume of the gas is 9.086 liters.

Explanation:

Let suppose that nitrogen has a behavior of ideal gas, the equation of state for ideal gases is:

[tex]P\cdot V = n \cdot R_{u}\cdot T[/tex] (1)

Where:

[tex]P[/tex] - Pressure, measured in atmospheres.

[tex]V[/tex] - Volumen, measured in liters.

[tex]n[/tex] - Molar amount, measured in moles.

[tex]T[/tex] - Temperature, measured in Kelvin.

[tex]R_{u}[/tex] - Ideal gas constant, measured in atmosphere-liters per mole-Kelvin.

If pressure and molar amount of the gas remain constant, then we construct the following relationship:

[tex]\frac{T_{1}}{V_{1}} = \frac{T_{2}}{V_{2}}[/tex] (2)

If we know that [tex]T_{1} = 290.15\,K[/tex], [tex]P_{1} = 8.5\,L[/tex] and [tex]T_{2} = 310.15\,K[/tex], then the new volume of the gas is:

[tex]V_{2} = \left(\frac{T_{2}}{T_{1}}\right)\cdot V_{1}[/tex]

[tex]V_{2} = \left(\frac{310.15\,K}{290.15\,K} \right)\cdot (8.5\,L)[/tex]

[tex]V_{2} = 9.086\,L[/tex]

The new volume of the gas is 9.086 liters.

Answer:

Sodium

Calcium

Magnesium

Aluminium

Zinc

Iron

Copper

Explanation:

Answer:

Should be a 15 imo

Explanation:

N is one, 4H = 4, S 2 because of the 2 and O 8 because of the 4 and the 2 before the S.