what type of clouds are shaped like a column cloud.

We can see that an atom with 14 protons, 14 neutrons, and 16 electrons is unstable, and has a -2 charge.

So the correct option is the third one.

An atom with 14 protons, 14 neutrons, and 16 electrons is not stable. The number of protons in an atom, also known as its atomic number, determines its element and its chemical properties. In this case, the atom has 14 protons, which corresponds to the element silicon (Si) on the periodic table.

For an atom to be stable, it should have a balanced number of protons and electrons. Electrons are negatively charged particles that orbit the nucleus of an atom in energy levels or electron shells. The number of electrons in a stable atom should be equal to the number of protons, resulting in a neutral charge overall.

In this case, the atom has 14 protons and 16 electrons, which means it has two more electrons than protons, resulting in a net charge of -2. This is an example of an ion.

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1. There are 4 nitrogen molecules present in 2N2.

2. To balance N2 to O2 to N2O, start by balancing the nitrogen atoms. There are two nitrogen atoms on the left side, so add two nitrogen atoms to the right side to balance them out. Then balance the oxygen atoms. There are four oxygen atoms on the left side, so add four oxygen atoms to the right side to balance them out.

The balanced equation will look like this: N2 + O2 → 2N2O.

3. To balance this equation O2 + N2 → NO2, start by balancing the nitrogen atoms. There are two nitrogen atoms on the left side and one nitrogen atom on the right side, so add one nitrogen atom to the left side to balance them out. Then balance the oxygen atoms. There are two oxygen atoms on the left side and two oxygen atoms on the right side, so no changes need to be made. The balanced equation will look like this: O2 + N2 → NO2.

4. N2 and O2 make nitrogen dioxide (NO2). The balanced equation for this reaction is as follows: O2 + N2 → 2NO2.

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To determine the empirical formula of the metal bromide formed, we need to first calculate the amount of chromium reacted and the amount of bromine reacted. The amount of chromium reacted can be calculated using its molar mass, which is 52 g/mol: 19.66 g chromium x (1 mol chromium / 52 g chromium) = 0.378 mol chromium.

Since there is excess bromine, all of the chromium would react with bromine to form the metal bromide. Therefore, the amount of bromine reacted can be calculated using the mass of the metal bromide formed:

110.3 g metal bromide x (1 mol metal bromide / molar mass of metal bromide) = amount of bromine reacted

We don't know the molar mass of the metal bromide yet, but we can use the law of conservation of mass to determine it. The mass of the metal bromide formed must equal the sum of the masses of the chromium and bromine that reacted.

110.3 g metal bromide = 19.66 g chromium + mass of bromine reacted mass of bromine reacted = 90.64 g

Now we can calculate the amount of bromine reacted:

90.64 g bromine x (1 mol bromine / 79.904 g bromine) = 1.133 mol bromine

To determine the empirical formula, we need to find the ratio of the moles of each element in the metal bromide.

Chromium: 0.378 mol
Bromine: 1.133 mol

To get a whole number ratio, we can divide both of these values by the smaller value (0.378 mol):

Chromium: 0.378 mol ÷ 0.378 mol = 1
Bromine: 1.133 mol ÷ 0.378 mol = 3

Therefore, the empirical formula of the metal bromide is CrBr3.

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Answer:

\(\boxed{Heptene}\)

Explanation:

Double Bond => An Alkene molecule

So, the suffix will be "-ene"

7 Carbons => So, we'll use the prefix "Hept-"

Combining the suffix and prefix, we get:

=> Heptene

Answer:

\(\boxed{\mathrm{Heptene}}\)

Explanation:

Alkenes have double bonds. The molecule has one double bond.

Suffix ⇒ ene

The molecule has 7 carbon atoms and 14 hydrogen atoms.

Prefix ⇒ Hept (7 carbons)

The molecule is Heptene.

\(\mathrm{C_7H_{14}}\)

Answer:

2NaOH + H₂SO4 -> Na2SO4 + 2H2O

Explanation:

NaOH + H₂SO4 -> Na2SO4 +H2O

2NaOH + H₂SO4 -> Na2SO4 + 2H2O

Answer:

2NaOH + H₂SO4 -> Na2SO4 + 2H2O

Explanation:

2*H+2H=2*2H

2*Na=Na2

2*O+O4=O4+2*O

s=s

Answer:

Nucleus.

Explanation:

The sponge is a multicellular organism that consists of pores that allows water to move through the body. Sponges belong to the kingdom Animalia and phylum Porifera. Sponges can reproduce by budding. Sponges are placed in kingdom Animalia because they are unable to make their own food, made of more than one cell, and absence of cell wall.

Answer:

B

Explanation:

The mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur .

The molecular formula of Aluminum Sulfate is \(Al_2(SO_4)_3.\) In one molecule of aluminum sulfate, there are 3 sulfur atoms. To calculate the mass of aluminum sulfate, follow the steps below:

Step 1: Calculate the molar mass of aluminum sulfate using the periodic table.Al = 27.0 g/molS = 32.1 g/molO = 16.0 g/mol

(2 × Al) + (3 × S) + (12 × O) = molar mass of \(Al_2(SO_4)_3.\) = 342.2 g/mol

Step 2: Find the number of moles of sulfur in the given number of atoms of sulfur.2\(2.837*10^{26\) atoms of sulfur × 1 mol S/\(6.022 * 10^{23\)atoms S = 0.0470 mol S

Step 3: Use the molar ratio of sulfur to aluminum sulfate to calculate the number of moles of aluminum sulfate.1 mol \(Al_2(SO_4)_3.\) / 3 mol S = 0.333 mol\(Al_2(SO_4)_3.\) per mol S0.0470 mol S × 0.333 mol \(Al_2(SO_4)_3.\)/mol S = 0.0157 mol \(Al_2(SO_4)_3.\)

Step 4: Calculate the mass of aluminum sulfate.0.0157 mol \(Al_2(SO_4)_3.\) × 342.2 g/mol\(Al_2(SO_4)_3.\)= 5.373 g\(Al_2(SO_4)_3.\)

Therefore, the mass of Aluminum Sulfate is 5.373 grams if you have \(2.837*10^{26\) atoms of Sulfur.

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Answer:

yes

Explanation:

its an endothermic chemical reaction

Answer:

It is a chemical reaction because you cannot get back the original ingredients. if you can get the original ingredients back, it would be a physical change.

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Answer:

I think it was 1.7 or 1.9

Explanation:

Answer: NO

Explanation:

Answer:

yes

Explanation:

Answer:

\(51y6. \times { \times }^{2} \)

The final temperature of the solution is 30 degrees.

We know that we can be able to obtain the heat that has been evolved or absorbed by the system by the use of the formula that says; q = mcdT

m = mass of the object

c = heat capacity

dT = temperature change

We would then have;

Number of moles of KBr = 50.5 g/119 g/mol

= 0.42 moles

Then;

19.9 * 10^3 *  0.42 moles = 400 * 4.184 * (T - 25)

8358 = 1673.6T - 41840

T = 8358 + 41840/1673.6

T = 30 degrees

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Based on the given bright-line spectra and the observed wavelengths in the mixture's spectrum, the elements G and J are the ones present in the mixture.

From the given bright-line spectra and the spectrum of the mixture, we can determine the elements present in the mixture by comparing the specific wavelengths observed. Examining the bright-line spectra, we can identify that G has a distinct wavelength at 650 nm, J at 600 nm, L at 550 nm, and M at 500 nm.

Looking at the spectrum of the mixture, we can observe two prominent wavelengths, 650 nm and 600 nm. These correspond to the wavelengths of G and J, respectively. Since the spectrum of the mixture does not exhibit the wavelengths specific to L (550 nm) or M (500 nm), we can conclude that only G and J are present in the mixture.

Therefore, based on the given bright-line spectra and the observed wavelengths in the mixture's spectrum, the elements G and J are the ones present in the mixture.

This analysis relies on the principle that each element has characteristic wavelengths at which they emit light. By comparing the observed wavelengths in the mixture's spectrum with those of the individual elements, we can determine the elements present in the mixture.

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Based on the heat change or heat absorbed by the ethanol, the temperature change is 8.6 °C.

Phase transition refers to the process where a substance changes from one phase or physical state to another when heat is added or removed from it

No change in temperature occurs in a phase transition.

The heat absorbed by the ethanol is calculated thus:

Hence, temperature change = heat change / moles * molar heat capacity

moles of ethanol = 310 * 0.789 / 46

moles of ethanol = 5.317 moles

Heat change = 5.00 kJ or 5000 J

temperature change = 5000 / (5.317 *  109.5)

temperature change = 8.6 °C

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Answer:

there are approximately 52 moles in 15 grams of lithium.

Answer:

Answer is A,  increasing the distance between the positively charged object and the negatively charged object

Explanation:

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Answer:

A

Explanation:

The redox reactions are balanced are in order atoms, O and H, then charge. Therefore, option (A) is correct.

Redox reactions can be described as oxidation-reduction chemical reactions in which the reactants undergo a change in their oxidation states. All the redox reactions are further broken down into two half-cell reactions: a reduction process and an oxidation process.

The oxidation and reduction take place simultaneously in a redox reaction. The substance getting reduced in a redox reaction is known as the oxidizing agent, while a substance getting oxidized in a redox reaction is known as the reducing agent.

To balance the redox reaction, the redox reaction is divided into two half-cell reactions. Then to balance the mass, the atoms are balanced. Then to balance the charge the electrons are transferred. Then both half-cell reactions are added to get the overall reaction.

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The planet that would have a diameter of approximately 12 cm is Saturn.

A scale model is a model which is used to represent another object using a given scale.

Scale models can be used to make small object bigger or larger objects smaller.

Considering the scale model of the planets where  1 centimeter (cm) is equal to 10,000 kilometers (km);

1 centimeter = 10,000 kilometers

12 centimeter = 1.2 × 10⁵ kilometers

The planet with a diameter of approximately 1.2 × 10⁵ kilometers is Saturn.

In conclusion, scale models are used to model objects.

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Answer:

water will boil at 100 celcius or 212 farenheit

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Answer:

At 100° C or 373.15K

Explanation:

Explanation:

Avogadro's number represents the number of units in one mole of any substance. Avogadro's number is equal to 6.022 * 10^23.

That means that 1 mol of hydrogen peroxide molecules will contain 6.022 *10^23 molecules.

Answer: a) 6.02 * 10^23

Answer:

That is an organ because it is a kidney I reconigize it

Explanation:

The mass in grams of 4.60 x 10^23 atoms is approximately 9.17 g.

To find the mass in grams of 4.60 x 10^23 atoms, we need to consider the molar mass and Avogadro's number. Avogadro's number (6.022 x 10^23) represents the number of atoms or molecules in one mole of a substance.

First, we need to determine the molar mass of the substance in question. Let's assume we are dealing with a specific element, such as carbon (C), which has a molar mass of approximately 12.01 g/mol.

To calculate the mass in grams, we can use the following formula:

Mass (in grams) = (Number of atoms / Avogadro's number) x Molar mass

Substituting the given values:

Mass (in grams) = (4.60 x 10^23 atoms / 6.022 x 10^23) x 12.01 g/mol

Calculating the expression:

Mass (in grams) = (0.763 mol) x 12.01 g/mol

Mass (in grams) = 9.17 g

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Answer:

Zinc as a supplement helps your immune system and metabolism function

A11) A, x z y

A12) A, Bronze

Explanation:

For dissolving dry mortar on floor tiles, you can use concrete and mortar dissolver. You can find this product at your local hardware store or online12.

For removing KMnO stains, you can use vinegar. Mix vinegar with water and spray or pour it on the tile surface. Let the vinegar water set in for a few minutes, then sponge the entire area to get it as clean as possible. Next, use a razor blade or scraper to peel up the mortar. Be careful not to gouge or scratch the tiles3.

KMnO is potassium permanganate. it makes water drinkable if it's polluted

For drying acid anhydrides, you can use calcium chloride. Calcium chloride is a hygroscopic substance that absorbs moisture from the air and can be used as a desiccant.

desiccants keeps things dry so they last longer like food & clothes

bingAI

Answer:2

Explanation:

He

Answer:

a chemical reaction occurs

Explanation:

The temperature change of a substance when it absorbs or loses energy can be calculated using the specific heat capacity of the substance. The specific heat capacity of water is approximately 4.18 J/(g°C), which means that it takes 4.18 joules of energy to raise the temperature of 1 gram of water by 1 degree Celsius.

To calculate the temperature change of the water sample when 50 joules of energy is added, we need to use the following equation:

q = m * c * ΔT

where q is the amount of energy absorbed by the water, m is the mass of the water sample, c is the specific heat capacity of water, and ΔT is the resulting temperature change.

Rearranging the equation to solve for ΔT, we get:

ΔT = q / (m * c)

Plugging in the values, we get:

ΔT = 50 J / (m * 4.18 J/(g°C))

We need to know the mass of the water sample to calculate the temperature change. Let's assume a mass of 10 grams:

ΔT = 50 J / (10 g * 4.18 J/(g°C))

ΔT = 1.2°C

Therefore, if 50 joules of energy is added to a 10-gram sample of water, the resulting temperature change will be approximately 1.2 degrees Celsius.