Father, I come to you worn and weary from the hard times I have walked through recently. I come to you seeking your shelter where I know I can find security and rest in your shadow. Father, you are mighty. I know my circumstances are no match for Your great power. Father I place a healing of these people that they feel a conviction in there heart that they would turn from there wicked way and turn to you father. IN JESUS NAME AMEN

Answer:

2.34 g

Explanation:

The equation of the reaction is;

HCl(aq) + NaOH(aq) ------> NaCl(aq) + H2O(l)

Number of moles of HCl= 1.5g/36.5g/mol = 0.04 moles

Number of moles of NaOH= 2.48g/40g/mol= 0.062 moles

Since the reaction is 1:1, HCl is the limiting reactant.

Mass if NaCl produced= 0.04 × 58.5 = 2.34 g

In this letter, express gratitude to your uncle, a university professor, for his invitation and congratulate him on his achievements.

Here are the steps to be followed:

By following these steps, you can write a thoughtful and appreciative letter to your uncle, expressing your gratitude for his invitation and congratulating him on his achievements.

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Answer:

propene

Explanation:

According to the rules,the name of hydrocarbon:root word+suffix=prop+ene=propene

Chemistry => Thermochemistry => Enthalpy

We have a material that is heated until it goes from a solid state to a liquid state, that is, it melts.

To calculate the total energy we will take into account two stages:

1. Corresponds to the energy needed to raise the temperature from 20°C to 660°C.

2. The energy needed to melt aluminum at a constant melting temperature (660°C).

We will need the following data that we can find in the literature:

Specific heat of aluminum = 0.896J/g°C

enthalpy of fusion aluminum = 0.322J/g

For stage 1. the energy required will be calculated with the following equation:

Where,

Q is the energy required to raise the temperature

m is the mass of the aluminum soda can, 14g

Cp is the specific heat of aluminum, 0.896J/g°C

T2 is the final temperature, 660°C

T1 is the initial temperature, 20°C

We replace the known data:

For stage 2 the energy required will be calculated with the following equation:

Where

Qm is the energy required to melt the aluminum soda can

m is the mass, 14g

deltaHm is the enthalpy of fusion aluminum,0.322J/g

The energy required will be:

So, the total energy will be the sum of both energies. So, we will have:

Answer: It would take 8.0 kJ to melt 1 aluminum soda can

Fewer electron shells exist for boron. Smaller radius results from fewer electron shells.

The total distance from an atom's nucleus to its outermost electron orbital is typically defined as the atomic radius. It can be described more simply as something akin to the radius of a circle, with the nucleus acting as the circle's centre and the outermost orbital of the electron as the circle's perimeter. Trends that help explain how atomic radii change start to appear as you start moving across or down the periodic table. The radius of atoms increases as you move down a particular group in the periodic table of elements because an atom grows larger as the number of electronic shells increases. In general, when you move from the left to the right of a particular period, an atom's size will decrease.

Let's start by looking up aluminium and boron on our reference table's periodic table. The numbers 13 and 5 correspond to aluminium (Al) and boron (B).

While boron is in the second period and has two electron shells, aluminium is in the third period (row) and has three. Borium thus has fewer electron shells. Smaller radius results from fewer electron shells.

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ANSWER

They have similar numbers of valence electrons

EXPLANATION

Periodic law states that chemical properties of an element in their periodic function of their atomic number.

The elements on the same group have the same number of valence electrons which make them have the same similar chemical properties

Therefore, the correct answer is option B

Answer:

1 and 2 are identical

Explanation:

Draw zigzag project

Answer:

Explanation:

Anode loses the electrons and is oxidized. while the cathod electrons and is reduced.

Hope it helps!!!

Answer:

In a voltaic cell, the Anode Loses electrons and is oxidized, while the Cathode Gains electrons and is reduced.

Explanation:

The strongest reducing agent which is the Anode is oxidized, the Anode is negative so it loses electrons.

The strongest oxidizing agent is the Cathode, which is positive so it gains.

Also for further confirmation, I got it right on the test.

The yield of aluminium obtained from 1 m^3 of bauxite is 419810 g

A percent yield of a substance measures the amount of the substance actually obtained as a percentage ratio of expected yield.

Percent yield = actual yield / expected yield × 100%

From the data given:

40 % of the bauxite is converted to aluminium oxide.

Volume of bauxite = 1 m^3

40 % of 1 m^3 = 0.4 m^3

volume of aluminium oxide = 0.4 m^3

density of aluminium oxide = 3965 kg/m^3

mass of aluminium oxide = 0.4 × 3965 kg

mass of aluminium oxide = 1586 kg

Formula of aluminium oxide is Al203

molar mass of aluminium oxide = 102 g

Percentage mass of aluminium in aluminium oxide = 54/102 × 100

Percentage mass of aluminium in aluminium oxide = 52.94 %

Expected mass of aluminium from aluminium oxide = 52.94 × 1586

Expected mass of aluminium = 839.62 kg

Actual yield = 40 % × 839.62

Actual yield of aluminium = 419.81 kg

mass of aluminium in grams = 419810 g

Therefore, mass of aluminium obtained from 1 m^3 of bauxite is 419810 g

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HNO2 is a bronsted-lowry acid that does not behave as a strong acid when it is dissolved on water.

According to the Bronsted-Lowry idea, nitrous acid is a type of acid. When dissolved in an aqueous solution, it releases H+ ions. And an acid is a chemical that releases H+ ions in water solutions or donates the proton to other substances. Because it causes the release of H+ ions in a water solution, it is an acid. Since it only partially dissociates in water, generating hydronium ions and its conjugate base, it is categorized as a weak acid. The powerful acids are hydrochloric acid, perchloric acid, chloric acid, nitric acid, sulfuric acid, hydrobromic acid, and hydroiodic acid.

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The empirical formula of polyethylene can be determined by converting the given percentages of carbon (C) and hydrogen (H) into grams. To find the grams of each element, we assume a 100.0 g sample of polyethylene.

For carbon:

Mass of carbon = 86.0% × 100.0 g = 86.0 g

For hydrogen:

Mass of hydrogen = 14.0% × 100.0 g = 14.0 g

Therefore, in a 100.0 g sample of polyethylene, there are 86.0 grams of carbon and 14.0 grams of hydrogen.

The empirical formula of a compound represents the simplest whole-number ratio of atoms present in the compound. To determine the empirical formula, we need to find the ratio of carbon to hydrogen in terms of moles.

First, we convert the masses of carbon and hydrogen into moles using their respective molar masses. The molar mass of carbon is approximately 12.01 g/mol, and the molar mass of hydrogen is approximately 1.008 g/mol.

Number of moles of carbon = 86.0 g / 12.01 g/mol ≈ 7.162 mol

Number of moles of hydrogen = 14.0 g / 1.008 g/mol ≈ 13.89 mol

Next, we divide the number of moles of each element by the smallest number of moles to get a simplified ratio.

Carbon: Hydrogen ≈ 7.162 mol : 13.89 mol ≈ 1 : 1.939

Since we want to express the ratio in whole numbers, we multiply both sides by 2 to get a whole number ratio.

Carbon: Hydrogen ≈ 2 : 3.878

Rounding to the nearest whole number, we find that the empirical formula of polyethylene is CH₂.

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Answer:

ocean

Explanation:

Answer:

The main natural carbon sinks are plants, the ocean soul plants grab carbon dioxide from the atmosphere to use in photosynthesis; some of this carbon Is transferred to soil as plants die and decompose

When answering questions on the Brainly platform, it is important to always be factually accurate, professional, and friendly. It is also important to be concise and avoid providing extraneous amounts of detail. Typos or irrelevant parts of the question should be ignored.

In this experiment, the student will examine how atoms absorb and emit photons which are particles of light. If an atom emits a photon, this leads to a negative change in the atom's energy. The sign for this change in energy is negative, making this process exothermic.

Exothermic processes release energy into the environment, usually in the form of heat or light. When an atom emits a photon, it is releasing energy in the form of light. This means that the energy of the atom is decreasing, and the process is exothermic.

In contrast, endothermic processes absorb energy from the environment. These processes require energy to occur, and their sign for change in energy is positive. In the context of this experiment, if an atom were to absorb a photon, its energy would increase, and the process would be endothermic.

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The Br are in 25 g CaBr2 will be approximately 203.87 g of Br.

The molar mass of an element's atoms is calculated by multiplying the element's comparative atomic mass by the molar mass constant.

In the given scenario, we need to find the grams of Br in CaBr2.

We know that,

molar mass of Br = 79.904 g/mol

molar mass of CaBr2 = 199.886 g/mol

CaBr2 = 2 Br + Ca

So, by the given data,

199.886 g = 2 x 79.904 g

255 g = X ( i.e., mass of Br )

X = 255 x 2 x 79.904 / 199.886

X = 203.87 g of Br

Thus, the amount of Br is 203.87gm.

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Answer:

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

From the question

velocity of caterpillar = 0.011 m/s

time = 120 s

So we have

distance = 0.011 × 120

We have the final answer as

Hope this helps you

Answer:

2 hours and 4 mins

The name of the compound is 2-methyl-3-ethylheptanoic acid.

Looking at the structure, the longest carbon chain is 7. Meaning that the compound is a heptanoic acid.

There are 2 branches. The first one has a single carbon (methyl) while the second one has 2 carbons (ethyl).

The methyl is located on the second carbon (2-methyl) while the ethyl is located on the third carbon (3-ethyl) on the main chain.

Thus, the name of the compound would be 2-methyl-3-ethylheptanoic acid.

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Answer:its c 3-ehtyl

Explanation:

Answer:

4

Explanation:

D=M/V

D=20.0/5

D=4

The Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

The Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

Thermal energy refers to the movement of particles and therefore both concepts are interrelated.

In conclusion, the Kinetic Molecular Theory is a  scientific model that states atoms in a compound are found in a constant state of motion (movement).

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Answer:

yo its jess bregoli

your answer is given below

(◠‿◕)

An atomic mass unit is defined as a mass equal to one twelfth the mass of an atom of carbon-12. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu. An atom of sulfur-32 has a mass of 31.972 amu.

A distillation column is a process unit in which a feed mixture is separated by multiple partial vaporizations.

It should be noted that distillation simply means a process that has to do with the conversion of liquid into vapor.

In this case, distillation column is a process unit in which a feed mixture is separated by multiple partial vaporizations.

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Answer:

1.593 moles

Explanation:

Therefore, 1.593 moles are equal to 89.23 g of calcium oxide.

Answer:

9.64 × 10²³ molecules

Explanation:

Given data:

Mass of calcium oxide = 89.23 g

Number of molecules = ?

Solution:

First of all we will calculate the number of moles of calcium oxide.

Number of moles = mass/molar mass

Number of moles = 89.23 g/ 56.1 g/mol

Number of moles = 1.6 mol

Number of molecules;

1 mole contain 6.022 × 10²³ molecules

1.6 mol × 6.022 × 10²³ molecules / 1mol

9.64 × 10²³ molecules

The number 6.022 × 10²³ is called Avogadro number.

Answer:

\(m_{Fe}=23.0gFe\)

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

\(FeO+Mg\rightarrow Fe+MgO\)

Thus, for the given masses of reactants we should compute the limiting reactant for which we first compute the available moles of iron (II) oxide:

\(n_{FeO}=40.0gFeO*\frac{1molFeO}{72gFeO} =0.556molFeO\)

Next, we compute the consumed moles of iron (II) oxide by the 10.0 g of magnesium, considering their 1:1 molar ratio in the chemical reaction:

\(n_{FeO}^{consumed}=10.0Mg*\frac{1molMg}{24.3gMg}*\frac{1molFeO}{1molMg}=0.412molFeO\)

Therefore, we can notice there is less consumed iron (II) oxide than available for which it is in excess whereas magnesium is the limiting reactant. In such a way, the produced mass of iron turns out:

\(m_{Fe}=0.412molFeO*\frac{1molFe}{1molFeO}*\frac{56gFe}{1molFe}\\ \\m_{Fe}=23.0gFe\)

Regards.

The reaction can be said to be at equilibrium when the reaction rates of making products and using reactants are equal.

When the rates of the forward and reverse reactions are equal and the concentrations of the reactants and products don't change over time, a chemical reaction is said to be in equilibrium.

When the system reaches equilibrium, it is in a state of balance, which means that the concentrations of the reactants and products have not changed significantly.

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Answer:

a. <1.0

b. 1.30

c. 3.00

d. 11.00

e. 12.70

At 2861 degree Celsius the iron begins to boil. At 1,538 °C the substance begins to melt.

The melting point is the point at which the liquid and solid forms of a solid can exist in equilibrium. It can also be defined as the point at which a solid changes into a liquid under normal atmospheric pressure.

The equilibrium point at which water vapor, liquid water, and solid ice can exist in equilibrium is the only point at which the pressure and temperature of water vapor are the same. The equilibrium point of water vapor is the point at which the partial vapor pressure is the same as that of liquid water at the exact temperature of 273.1600 K.

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The following statement which is NOT true about the lens is:

The lens is a piece of glass which  is used for the dispersal or refraction of light and is used to focus light onto the retina of the eye.

As a result of this, the lens is responsible for refracting of light, focusing of light and it is transparent. However, it does not send light to the optic nerve.

Therefore, the correct answer is option A

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Answer:

1.00x10^-9

Explanation:

(Option C.) Selenium is an element with an atomic number of 34 and an effective nuclear charge of +12, which is higher than the effective nuclear charge of zinc, which is +10. It is located in the fourth period of the periodic table and is situated in the p-block of elements. Selenium has many uses and is essential for human health.

Zinc is an element that has an atomic number of 30, and an effective nuclear charge of +10. It is located in the fourth period of the periodic table, and is situated in the d-block of elements. However, selenium, with an atomic number of 34 and an effective nuclear charge of +12, has a higher effective nuclear charge than zinc. Selenium is located in the fourth period of the periodic table and is also situated in the p-block of elements. It is an essential trace element for humans and many other organisms, and its compounds are used in many industrial applications.

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