How does the periodic table make it easier for the scientist to work with and study elements

Answer:

silver (III) phosphate

Explanation:

Answer:

saltation

Explanation:

Answer:

349.503 g

https://www.convertunits.com/from/moles+Copper/to/grams

here is a link, you can convert moles of copper to grams here

The answer is 5.50 moles of Cu (Copper) has 349.503 grams mass .

A mole is defined as 6.02214076 × 10²³ atoms, molecules, ions, or other chemical units.

and the molar mass of a substance is defined as the mass of 1 mole of that substance, expressed in grams per mole.

It is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

1 mole of Cu has 63.546 grams of Cu

So 5.50 moles will have 5.50 * 63.546 grams

=349.503 grams

Therefore 5.50 moles of Cu (Copper) has 349.503 grams mass .

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Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific and it makes the claim as factual, and fictional as well as an exaggeration.

Advertising must be truthful and must not deceive consumers. If important details are omitted or the assertion implies something untrue, it may be misleading. For instance, if substantial and hidden fees are payable upon lease signing, a leasing advertisement for an automobile that advertises "$0 Down" may be deceptive.

Additionally, statements must be supported, particularly when they relate to performance, safety, or health. Depending on the product, the claims, and what experts deem necessary, the type of evidence may vary. Following is the list of sources to show the inference of the product advertised,

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Answer:

Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed

Explanation: I looked It Up on Google

Body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus. An animal or plant from a previous geologic era that has been retained in the Earth's crust as a fossil.

An animal or plant from a previous geologic era that has been retained in the Earth's crust as a fossil, remnant, imprint, or trace. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the planet.

Only a tiny percentage of extinct species have been retained as fossils, and often only those with a sturdy skeleton are capable of doing so. Body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus.

Therefore, body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus.

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Answer:

That would be more

Explanation:

The velocity of the prototype should be (Fr x √(g x (1:30L))).

Prototype is a preliminary version of a product or system that is used to test features, functionality, and design before a final version is released. It is a way to quickly and cheaply test ideas, evaluate feedback, and provide proof-of-concept for a product or system.

The Froude number for the model and prototype is given by the equation, Fr = V/√(gL), where V is the velocity, g is the acceleration due to gravity, and L is the length of the prototype. For the model, V is 1:30 times the velocity of the prototype.
Therefore, the velocity of the prototype, Vp, can be calculated as:
Vp = (Vm x 30)/1

= (Fr x √(gL)) x 30/1

= (Fr x √(g x (1:30L)))
Where Vm is the velocity of the model and L is the length of the prototype.
Therefore, the velocity of the prototype should be (Fr x √(g x (1:30L))).

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Answer:

the answer should be square, because by it's area formula (l²)we can tell that all it's sides are equal.but for a circle it just has a circumference and not sides.a rectangle on the other hand has only two sides equal.

but I also think the answer could be cube because all it's faces are equal.

I hope this helps

By using filtration, the sand and fine salt can be effectively separated based on their difference in particle size, providing a clean separation of the two components.

Filtration is a separation technique that takes advantage of the difference in particle size between sand and salt. It involves passing the mixture through a porous material, such as filter paper or a filter funnel, which allows the liquid (saltwater) and small salt particles to pass through while retaining the larger sand particles.

Here's how the filtration process can be carried out:

1. Set up a filter apparatus with a funnel and filter paper or a filter flask.

2. Place the mixture of sand and salt in a beaker or a flask.

3. Slowly pour the mixture into the filter paper or funnel, allowing the liquid (saltwater) to pass through while retaining the sand on the filter paper.

4. Once the liquid has passed through completely, the sand will be left behind on the filter paper or in the filter flask.

5. Carefully remove the sand from the filter paper or filter flask, and the saltwater solution can be collected separately.

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The percent by mass of the fluorine in the compound is 46.472%.

We know that the percent by mass has to do with the ratio of the total mass of the atom that is part of the compound and the total molar mass of the compound multiplied by one hundred.

The question in this case has demanded that we ought to obtain the mass percent of fluorine from the compound that we can be able to identify from the formula of the compound that is shown here as xenon hexa fluoride.

Mass of the compound can be obtained from; 131 + 6(19)

= 245 g/mol

The total mass of the fluorine atom in the compound is 114 g

Thus we have the use of;  114 /245 * 100/1

= 46.472%

The percent  by mass is now gotten for the fluorine atom as 46.472%.

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Answer:

7

Explanation:

Answer: 1 & 3

Explanation:

Answer:

highest concentration

C. 10M hcl

The final volume of the ladybug's prison is approximately 0.4 liters.

To determine the final volume of the ladybug's prison, we can use Boyle's Law, which states that the pressure and volume of a gas are inversely proportional at constant temperature. The equation for Boyle's Law is:

P1 * V1 = P2 * V2

Where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume, respectively.

In this scenario, the initial volume (V1) is given as 0.5 L, and the initial pressure (P1) is 1 atm. The final pressure (P2) is 1.25 atm. We need to find the final volume (V2).

Plugging the given values into the equation, we have:

1 atm * 0.5 L = 1.25 atm * V2

Simplifying the equation, we find:

0.5 L = 1.25 atm * V2

Dividing both sides of the equation by 1.25 atm, we get:

0.5 L / 1.25 atm = V2

V2 ≈ 0.4 L

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Answer:

the answer is B if one mol contains of NH4NO3 contains 6.02X 10^23

Answer:

You could calculate the answer given the formula

M = mol/L

you can get mol using g/MolarMass

=> 42g/22.99g/mol = 1.82688125mol

1.25M = 1.82688125mol/V

=> apply simple algebra
V = 1.4615 L
=> Notice that the answer requires the unit to be ml
V = 1.4615L * 1000ml/L = 1461.5ml

=> Notice that the given grams have 2 sig figs

V = 1500 ml

Answer:

Volume = 3.4 L

Explanation:

In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:

CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)

Now, let's calculate the number of moles in 15.2 g CaCO₃:

mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)

                 = \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)

                 = 0.1518 moles

From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.

Hence, from the formula for the number of moles of a gas, we can calculate the volume of  CO₂:

mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)

⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)

⇒ Volume = 0.1518 × 22.4

                 = 3.4 L

Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.

Answer:

A. Reactants change into products

Answer:

3.04 atoms

Explanation:

because of the switzer theory

Answer:

8Ag2S--->16Ag+S8

Explanation:

thats your answer hope it helps

Answer: 6.23

Explanation:

1) solve for pH  

pH=-log (H3O+) = - log 1.7 X 10^-8 =7.77

2) now do 14-pH  = 14 -7.77=6.23

Answer:

  -172.6 °C

Explanation:

You want to know the Celsius equivalent of the temperature 100.6 K.

The relation is ...

  C = K - 273.15

  C = 100.6 -273.15 = -172.55

The temperature is -172.55 °C, about -172.6 °C.

__

Additional comment

We have rounded to tenths, because that is precision of the temperature given. If you use 273 as the conversion constant, you will get -172.4.

The given chemical equation, 2N₂ + 3H₂ <==>2NH3, is an example of a reversible reaction.option A.

The double arrows between the reactants and products indicate that the reaction can proceed in both directions, forming both products and reactants.The reversible reaction, also known as a chemical equilibrium reaction, refers to a chemical reaction that can occur in both forward and reverse directions. It occurs when reactants are converted into products, and the products are also converted back into the original reactants.A reversible reaction can be identified by the symbol “<==>” or “⇌” that appears between the reactants and products in the chemical equation. It denotes that the reaction is in a state of chemical equilibrium. When the reactants and products have achieved equilibrium, the rate of the forward and reverse reactions is equal, and there is no further net change in the amounts of the reactants and products.A combustion reaction is a type of exothermic reaction in which a substance reacts with an oxidizing agent to produce heat and light. A one-way reaction is a type of reaction that occurs in only one direction and cannot be reversed without significant changes to the reaction conditions, such as changing the temperature or pressure.A reversible reaction, unlike a one-way reaction, can occur in both directions and reach equilibrium when the forward and reverse reaction rates are equal.option A.

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Answer:

The answer would be oxygen.

Cu + O2 --->  CuO2 -The first reaction is a combustion reaction

2 HCl + Mg → H2 + MgCl2- The second reaction is a Single replacement reaction

A combustion reaction is a type of chemical reaction that occurs between a fuel and an oxidizer in the presence of heat or light, resulting in the release of energy in the form of heat and light.

In other words, it is a reaction in which a substance reacts with oxygen to produce heat and light.

Combustion reactions are important in many aspects of daily life, including the burning of fossil fuels for energy production, the combustion of wood or other materials for heating or cooking, and the combustion of fuels in internal combustion engines.

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Recall the ideal gas law,

P V = n R T

Find the amount of CO₂ in the sample, n :

P = 686 mm Hg ≈ 91,459 Pa

V = 6.34 L

R = 8.3145 J/(mol•°K)

T = 73 °C = 346.2 °K

→   n = P V / (R T ) ≈ 0.20147 mol

Now find the volume V of the sample when the temperature T is 35 °C = 308.2 °K :

V = n R T / P ≈ 5.6349 L ≈ 5.63 L

Answer:

H3O^+ < HClO2 < H3PO4< HCOOH < H2PO4^-<CIO2^-<H2O< HCOO^-

Explanation:

The pH of a solution refers to the negative logarithm of it's hydrogen ion concentration. Generally, the hydrogen ion concentration of an acid is always greater than that of its conjugate base. Hence, the conjugate acid always has a lower pH than the conjugate base.

This can be seen in the species, H3O^+ and H2O, HClO2 and ClO2^- etc.

Answer: 2 moles

Hydrogen has an atomic mass of 1.008 g/mol and oxygen has an atomic mass of 15.9993 g/mol. According to the formula there are 2 moles of hydrogen and 2 moles of oxygen in each hydrogen peroxide molecule.