If Sodium has a 1+ charge, and Phosphous has a 3- charge, how many Sodium are needed for every Phosphous?

In this isotope notation, 195 represents the atomic mass (or mass number) of the element, which in this case is platinum (Pt).

Isotope is a type of atom that has the same number of protons but a different number of neutrons. Isotopes are different forms of the same element and can be found naturally in the environment or be produced synthetically. Isotopes can be used for many different purposes, including research, medical treatments, and energy production.In research, isotopes are used to study the properties of different elements and to understand how different elements interact with each other. Isotopes can also be used to trace the origins of materials, as the ratio of different isotopes can vary depending on where they were formed.

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The statement that describes the isotopes of an atom is different chemical properties. Thus, option A is correct.

Atom is defined as anything that occupy space and have some mass is known as atom. Silver is a shiny metal that conducts electricity very well . It can be molded into thin sheets it means it can spread into a like a sheet and these type of properties is known as malleability.

Potassium is dull and brittle it means that it can't be change into sheet when you try to change in sheet it will break and these properties are called as brittlness and when it is has been dissolved into water, which it does quite easily.

Physical properties of matter include color, hardness, malleability, solubility, electrical conductivity, density, melting points and boling points. Potassium and silver are both gray and shiny metals . The experiment which conducts on these elements to determine are salt analysis.

Therefore,The statement that describes the isotopes of an atom is different chemical properties. Thus, option A is correct.

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The anode is usually the negative electrode. It is similar to when we say that an anion is an ion with a negative charge.

Nevertheless, in an electrolytic cell, it's the other way around, it means that this time, the anode will be the positive electrode.

Answer:

Carbon dioxide is produced whenever an acid reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory. Calcium carbonate and hydrochloric acid are usually used because they are cheap and easy to obtain. Carbon dioxide can be collected over water, as shown in the diagram.

Answer: the answer you are looking for does not exist

Explanation:

Answer:

2C4H10 + 13O2 -＞ 8CO2 + 10H2O

Explanation:

c = 8 8

h = 20 20

o = 26 26

Answer:

About 24 hours

Explanation:

Think of it as Earths spin

Answer:

H

Explanation:

try not to put your hands on him

Answer: Thus the volume of the balloon at this altitude is 419 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)

where,

\(P_1\) = initial pressure of gas = 751 mm Hg

\(P_2\) = final pressure of gas = 495 mm Hg

\(V_1\) = initial volume of gas = 340 L

\(V_2\) = final volume of gas = ?

\(T_1\) = initial temperature of gas = \(30^oC=273+30=303K\)

\(T_2\) = final temperature of gas = \(-27^oC=273-27=246K\)

Now put all the given values in the above equation, we get:

\(\frac{751\times 340}{303}=\frac{495\times V_2}{246}\)

\(V_2=419L\)

Thus the volume of the balloon at this altitude is 419 L

Answer: Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else. For example, a grasshopper living in the Everglades is a primary consumer

Answer:

primary consumer make up the second trophic level .they are also herbivores they eat primary consumer plants or alger and nothing else .for example a grasshopper living in the everglades is a primary consumer

Answer:

Temperature usually increases when water condenses. What behavior of water is most directly responsible for this phenomenon? The release of heat by the formation of hydrogen bonds. Hydrogen bonds stabilize and keep the of ice farther apart than the water molecules of liquid water.

The answer is the first one, CH3NH2.

Explanation:

To have a hydrogen bond you need a N, O or F atom in one molecule and a H attached to N, O or F

Answer:

Acid spills should be neutralized with sodium bicarbonate and then cleaned up with a paper towel or sponge.

Explanation:

The reaction is balanced because the number of atoms of each element or particle is equal on both sides of the equation.

Nuclear reaction is the process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.

The reaction products in a nuclear reaction may contain a different element or a different isotope of the same element.

According to this question, the following fission reaction of uranium is given below:

238/92 → 234/90Th + 4/2α

Based on the above reaction, the sum of the atomic mass and atomic number of the products is 238 and 92 respectively. This means that the equation is balanced.

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Answer:

c

Explanation:

Answer:

Answer: 882mmHg

Explanation:

In a closed-end manometer, the gas added is under a pressure that is measured against atmospheric pressure. The difference in pressure between both gases is equal to the difference in mercury levels. Thus, the pressure of the argon can be:

783 mmHg - 96.0mmHg = 687mmHg

783 mmHg - 96.0mmHg = 879mmHg

Based on the options, the possible answer (The nearest to the second value) is:

Answer:

0.00189

Explanation:

you divide the numbers

The Transcontinental Railroad was the main development that started a large movement of settlers to California. It was the first railway line to span the entire continent, connecting the east and west coasts of the United States.

The railroad greatly facilitated migration and allowed for widespread settlement of the West. It improved communication between the east and west coasts, sped up transportation, and made it possible for a more productive interchange of goods.

Also, the railroad made it possible for prospectors to reach California in search of the California Gold Rush. Also, the railroad made it possible for cattle ranchers to transport their herds of cattle to the California stockyards.

As a result, there was more beef available, which aided in the state's agriculture sector's expansion. Also, the railroad offered an effective way to ship mining and agricultural goods to the east coast.

Hence, the Transcontinental Railroad served as the main driving force behind the massive migration of settlers to California.

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Answer:0.226 gram

Explanation:you can get the answer in two steps calculate 3.40 . 10^22 atoms =

Answer:

4.2 × 10²² ÷ 6.022× 10²³

4.2 × 10²² equals 0.069 moles (approx)

weight of 1 mole of iron = 56g

therefore, 0.069 moles = 56 × 0.069 = 3.9 g

Sorry for lazy work.. :P

Answer:

d. 0.208 M NaOH

Explanation:

M[NaOH] = 23+16+1= 40g/mol

2.40L = 2.4dm3

M=m/Mv

M=20.0g/40g/mol×2.4dm3

M=20.0g ÷ 96

M= 0.208 M NaOH

The statement of the molarity of a solution is "0.208 M NaOH."

The amount of a chemical substance in a defined volume of the solution is measured in molarity (M). The moles of a solute per litre of a solution is known as molarity. The molar concentration of a solution is also known as molarity.

In order to determine the molarity, initially calculate the number of moles of sodium hydroxide by dividing the given mass by molar mass of NaOH.

Gram to mole conversion factor,

Moles of NaOH

\(= (20.0\;g) * \frac{(1\;mol\;NaOH)}{(39.998\;g)} \\= 0.50\;mol\)

Now, the molarity of the solution comes out to be,

\(Molarity = \frac{Moles\;of\;the\;solute}{Volume\;of\;the\;solution}\)

So,

\(= \frac{0.0500 \;mol}{2.40\;L} \\= 0.208\;\frac{mol}{L} = 0.208\;M\)

Hence the correct option is b.

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Answer:

Benzoic acid is a stronger acid than phenol because the benzoate ion is stabilised by two equivalent resonance structures in which the negative charge is present at the more electronegative oxygen atom. ... Thus, the benzoate ion is more stable than phenoxide ion. Hence, benzoic acid is a stronger acid than phenol.

Answer:

Mean: 350

Median: 300

Range: 650

Mode: 300

Explanation:

Mean: 800+300+150+300+200= 1750, 1750 divided by 5 = 350

You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS to find the mean.

Median: (150, 200, 300, 300, 800)

To find Median put the numbers in order from greatest to least then you choose the middle number.

Range: Range is the distance from the smallest number to the largest the way to solve this is (Highest number) - (lowest number). In your case its 800-150 which equals 650

Mode: The mode is the value that appears most frequently in a data set.

Brainliest?

Answer:

b!

Explanation:

Answer:

c - both rock types

Explanation:

when weathered and eroded they can become sediments!

The symbol  δ+ is found on a diagram of a water molecule on the oxygen atoms. The correct option is C.

A water molecule is made up of oxygen and two hydrogen molecules. Water is present in all states, liquid, gas, and solid. It is a universal solvent. The structure of a hydrogen molecule is attached.

The structure shows the unshared electrons on the oxygen atoms, which is shown by the sigma- sign. The hydrogen molecules are joined with oxygen molecules. the sigma+ sign is shown there.

Thus, the correct option is C. On the oxygen atoms.

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Answer:

A plastic ball

Explanation:

A plastic ball has less density than water because plastic has low density so