The period that an element is in on the periodic table can tell you how many _____ the element’s atom have.

A. Energy level(electron shells)
B. valence electrons
C. protons
D. isotopes
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Compounds are then formed when two or more than two elements combined together.

The compounds are formed when elements are joined and held together by strong forces called chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons. Compounds forms as a result of chemical reaction. Compounds are substances composed of two or more elements chemically combined that can be separated into simpler substances only by chemical means.

So we can conclude that: Compounds are then formed when two or more than two elements combined together.

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The balanced nuclear equation for the beta decay of 234/90Th can be represented as follows: ^234/90Th --> ^234/91Pa + e^0/-1β

In this equation, the nucleus of thorium-234 (234/90Th) undergoes beta decay. During beta decay, a neutron within the nucleus is converted into a proton, resulting in the emission of an electron (beta particle). As a result, the thorium-234 nucleus is transformed into protactinium-234 (234/91Pa) by gaining one proton.

The beta particle emitted during the decay process is represented as e^0/-1β, where the superscript 0 denotes that the electron has no charge (neutral), and the subscript -1 indicates that the electron carries a negative charge of -1.

It is important to note that in a nuclear equation, the total atomic mass and atomic number on both sides of the equation must be equal to maintain a balanced equation and conserve mass and charge.

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Answer:

3

Explanation:

the three elements involved in this compound are Li, S, O.

lithium, sulfur, and oxygen. Which create the ionic compound, "Lithium Sulfate."

7 atoms total, since there are two lithium, four oxygen, and one sulfate atom. this is a white inorganic salt.

There are three different types of elements in LiSO₄ which are lithium (Li), sulfur (S), and oxygen (O).

An element is a pure substance made of only one kind of atom which all have the same number of protons in their nuclei.

The chemical element was first presented by Robert Boyle who defined it as "incapable of decomposition”. Boyle’s this definition lies admirably close to present-day theory.

When different kinds of elements undergo particular chemical reactions then atoms are rearranged into new compounds connected together by chemical bonds.

All other naturally occurring elements occur on the Earth as compounds or mixtures. Air is a mixture of the elements nitrogen (N₂), oxygen (O), and argon (Ar), though it does contain carbon dioxide and water.

Given compound, lithium sulfate is formed of LiSO₄ has elements lithium, sulfur, and oxygen.

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Answer:

CHO

Explanation:

Carbon = 41%,  Hydrogen = 4.58%, oxygen = 54.6%

Step 1:

Divide through by their respective relative atomic masses

41/ 12,         4.58/1,         54.6/16

3.41              4.58            3.41

Step 2:

Divide by the lowest ratio:

3.41/3.41,      4.58/3.41,     3.41/3.41

1,                    1,                  1

Hence the empirical formula is CHO

Answer:

The empirical formula of X is C3H4O3.

Explanation:

The statement that is not part of Dalton's atomic theory is that atoms are composed of protons, neutrons, and electrons. Option C.

The statement that is not part of Dalton's atomic theory is that atoms are composed of protons, neutrons, and electrons.

This statement is not part of Dalton's atomic theory because the existence of subatomic particles such as protons, neutrons, and electrons was not discovered until much later, after Dalton's time.

Dalton believed that atoms were indivisible and indestructible particles, and did not have knowledge of the internal structure of atoms. The discovery of subatomic particles and the development of atomic models to explain their behavior came after Dalton's atomic theory was formulated.

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Answer:

where are the statements?

Explanation:

Explanation:

Bose-Einstein condensate (BEC) is a state of matter obtained when a gas of extremely rarefied bosonic atoms is cooled to temperatures close to absolute zero. When the temperature of the gas reaches a critical value, the atoms condense, giving rise to a single macroscopic superatom, in which all atoms have identical properties.

Answer: C. Bose-Einstein condensate

Removing of products, increasing the temperature and decreasing the pressure all of these will alter the equilibrium concentration. The correct option to this question is D.

The Le Chatelier principle is as follows: A movement in the equilibrium's location counteracts the effect of a change in one of the variables that characterize a system at equilibrium.

Equilibrium-affecting variables and the Le Chatelier principle

Alterations in concentration

Alterations in pressure.

Temperatures fluctuate.

The system's balance is thrown off when one of these elements changes, and it then readjusts itself until it achieves equilibrium again. The sections that follow discuss some of the most significant factors that affect equilibria.

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Complete question:

Which of the following changes in reaction conditions will alter the composition of an equilibrium mixture of gases for a reaction having unequal moles of gaseous products and gaseous reactants?

A) removing of products

B) increasing the temperature

C) decreasing the pressure

D) All of these will alter the equilibrium concentrations.

Answer:

5H2 + 4NO = 2N2 +4H2O + H2

Explanation:

Reactants:

Five molecules that contains two hydrogen = 5H2

Four molecules that contains one nitrogen and one oxygen = 4NO

Products:

Two molecules that contains two nitrogen = 2N2

Four molecules that contains one oxygen and two hydrogen = H2O

One molecules that contains two hydrogen = 1H2 or H2

The balanced chemical equation for the reaction will be: 5 H₂ + 4 NO → 2 N₂ + 4 H₂O + H₂, and there is no limiting reactant in this reaction.

To write the balanced chemical equation for the reaction, let's first identify the reactants and products based on the information provided:

Reactants:

5 molecules contain 2 white spheres (Hydrogen): 5 H₂

4 molecules contain 1 red (Oxygen) and 1 blue (Nitrogen) sphere: 4 NO

Products:

2 molecules contain 2 blue spheres (Nitrogen): 2 N₂

4 molecules contain 1 red (Oxygen) and 2 white (Hydrogen) spheres: 4 H₂O

1 molecule contains 2 white spheres (Hydrogen): 1 H₂

Now, let's write the balanced chemical equation by ensuring that the number of atoms of each element is the same on both sides of the equation:

Reactants: 5 H₂ + 4 NO

Products: 2 N₂ + 4 H₂O + 1 H₂

The balanced chemical equation for the reaction is:

5 H₂ + 4 NO → 2 N₂ + 4 H₂O + H₂

Now, let's determine the limiting reactant:

From the balanced equation, we can see that the stoichiometric ratio between H₂ and NO is 5:4. This means that for every 5 molecules of H₂, we need 4 molecules of NO for the reaction to proceed completely.

Since we have 5 molecules of H₂ and 4 molecules of NO, both reactants are present in the exact stoichiometric ratio required for the reaction. Therefore, neither H₂ nor NO is in excess, and both will be fully consumed during the reaction. As a result, there is no limiting reactant in this reaction.

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--The given question is incomplete, the complete question is

"Oxygen is represented by a red sphere. Nitrogen is represented by a blue sphere. Hydrogen is represented by a white sphere. In the reactants there are five molecules that contain two white spheres and four molecules that contains one red and one blue sphere. In the products there are two molecules that contain two blue spheres, four molecules that contain one red and two white spheres, and one molecule that contains two white spheres. What is the chemical formula for the limiting reactant in the reaction shown? chemical formula: Write the balanced chemical equation for the reaction, using lowest whole-number coefficients."--

Among the alkaline earth metals, beryllium (Be) has the fewest number of occupied electron shells.

The alkaline earth metals are a group of chemical elements in the periodic table that include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Among the alkaline earth metals, beryllium (Be) has the fewest number of occupied electron shells. Beryllium has an electron configuration of 1s2 2s2, meaning it has only two occupied electron shells: the first shell, which can hold up to two electrons, and the second shell, which can hold up to eight electrons. In contrast, the other alkaline earth metals have at least three occupied electron shells. For example, magnesium has an electron configuration of 1s2 2s2 2p6 3s2, meaning it has three occupied electron shells.

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Precision relates to the consistency and reproducibility of measurements, while accuracy reflects how close measurements are to the true value.

Precision and accuracy are two important concepts in the context of errors in measurements. While they both pertain to the quality of data, they refer to different aspects.

Precision refers to the degree of consistency or reproducibility in a series of measurements. It reflects the scatter or spread of data points around the average value. If the measurements have low scatter and are tightly clustered, they are considered precise. On the other hand, if the measurements have a high scatter and are widely dispersed, they are considered imprecise.

Accuracy, on the other hand, refers to the closeness of measurements to the true or target value. It represents how well the measured values align with the actual value. Accuracy is achieved when measurements have a small systematic or constant error, which is the difference between the average measured value and the true value.

Errors in measurements can be classified into two types: random errors and systematic errors.

Random errors are associated with the inherent limitations of measurement instruments or fluctuations in the measurement process. They lead to imprecise data and affect the precision of measurements. Random errors can be reduced by repeating measurements and calculating the average to minimize the effect of individual errors.

Systematic errors, on the other hand, are caused by consistent biases or inaccuracies in the measurement process. They affect the accuracy of measurements and lead to a deviation from the true value. Systematic errors can arise from factors such as instrumental calibration issues, environmental conditions, or experimental techniques. These errors need to be identified and minimized to improve the accuracy of measurements.

In summary, precision refers to the degree of consistency or reproducibility of measurements, while accuracy refers to the closeness of measurements to the true value. Random errors affect precision, while systematic errors affect accuracy. To ensure high-quality measurements, both precision and accuracy need to be considered and appropriate techniques should be employed to minimize errors.

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Jared can use the entire 100 ft rope to complete the kite shape by placing the remaining stake at the center

To use the entire 100 ft rope to complete the , Jared can follow these steps:

1)Place the first stake at the center of the intended kite shape.

2)Measure a distance of 30 ft from the center stake in one direction and place a second stake at that point.

3)Measure a distance of 30 ft from the center stake in the opposite direction and place a third stake at that point.

4)Measure a distance of 20 ft from the center stake in the remaining two directions perpendicular to the first measurements, and place the fourth and fifth stakes at those points.

Finally, connect the stakes with the rope to form the complete kite shape.

The kite shape has two pairs of equal-length adjacent sides. In this case, the sides measured at 30 ft create one pair, while the sides measured at 20 ft create the other pair. This configuration allows Jared to use all of the 100 ft rope.

To visualize the shape:

By following this arrangement, Jared will use the entire length of the 100 ft rope to create the kite shape for the food vendors.

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Answer:

Coeficient: 70219691

Exponent: 0

Explanation:

3.687×10⁵ = 0.3687×10⁶

Then:

2.589 × 10⁶ ÷ 3.687 × 10⁵ = 2.589 × 10⁶ ÷ 0.3687 × 10⁶

= (2.589/0.3687) × (10⁶ / 10⁶)

= 7.0219691 × 1

= 7.0219691 × 10⁰

Note:

10⁰ = 1

The north pole of one magnet is near the South pole of the other magnet.

The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole. If you line up two magnets so that the south pole of one faces the north pole of the other, the magnets will pull toward each other.

Based on the kinetic theory of gases, scientists could infer from Robert Boyle’s Law that an inverse relationship exists between the pressure of gases and their volume if the temperature is kept constant because the decrease in the volume of the vessel containing the gases will result in less room for movement of the gases and hence, the frequency of collisions increases and subsequently the pressure of the gases will increase.

According to the kinetic theory of gases, a gas is made up of numerous submicroscopic particles (atoms or molecules), all of which are moving randomly and continuously. The container's walls and the quickly moving particles frequently collide in this situation resulting in the gas pressure.

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Answer:

umm i am not sure i really understand the question but uranium has the highest number of Protons. It has a total of 92 protons. And if that doesn't work than the Atomic number should tell the number of protons are in the element

Explanation:

Answer:

I think its, balanced chemical equations

Explanation:

Answer:

na

Explanation:

Answer:

b

Explanation:

Answer:

5H²O= 23

ZnCl²=135

have a great day

C. As part of a base pair; at the 3' end in one polynucleotide strand describes its location.

Which functional group is found at the 3 ends of a polynucleotide?

The functional group that is at the end of the 3' end of the DNA is a hydroxyl group. The numbers on the carbon atoms in the pentose sugar of the nucleotides corresponding to the 3' end and the 5' end in DNA. At the 3' end, there is a hydroxyl group, made of an oxygen and hydrogen atom.

What is a nitrogenous base in DNA?

Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base. The nitrogenous bases in DNA are adenine (A), guanine (G), thymine (T), and cytosine (C). The nitrogenous bases in RNA are the same, with one exception: adenine (A), guanine (G), uracil (U), and cytosine (C).

Why is adenine called a base?

Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. The purine nitrogenous bases are characterized by their single amino group (−NH 2), at the C6 carbon in adenine and C2 in guanine.

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The partial pressure of hydrogen gas in the collected gas is 746 torr.

To determine the partial pressure of hydrogen gas in the collected gas, we need to consider the difference between the total pressure of the collected gas and the vapor pressure of water at the given temperature. The partial pressure of hydrogen gas is the pressure exerted by hydrogen alone.

Given information:

Total pressure of the collected gas (Ptotal) = 767 torr

Vapor pressure of water (Pwater) = 21.0 torr

The partial pressure of hydrogen gas (Phydrogen) can be calculated using Dalton's law of partial pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each individual gas.

Phydrogen = Ptotal - Pwater

Plugging in the given values:

Phydrogen = 767 torr - 21.0 torr

Phydrogen = 746 torr

Therefore, the partial pressure of hydrogen gas in the collected gas is 746 torr.

It's important to note that in this calculation, we assume that the water vapor does not react with or dissolve in the hydrogen gas and that the gases behave ideally. Additionally, it's assumed that the collected gas is dry, meaning all the water vapor has been removed or does not significantly contribute to the total pressure.

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Answer:

i need help with that too

Explanation: