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Answer:

Structural formula

Explanation:

Structural formulas are usually represented as such.

Answer:

Trees can be planted, grown up and harvested for wood and other things. it can be maintained by properly watering them when they are young trees or during a drought.

Explanation:

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A reaction that produces 14.2 grams of a product and the theoretical yield of that product is 17.1 grams is true for the following statements :

The percent yield of the product is 83.0%

The actual yield of the product is 14.2 grams.

Percent yield is the percent ratio of actual yield to the theoretical yield.

Mathematically,

percent yield = actual yield / theoretical yield x 100%

actual yield = 14.2 grams

theoretical yield = 17.1 grams

percentage yield = 14.2 / 17.1 × 100%

percentage yield = 83.0409356725 %

percentage yield = 83.0 %

Therefore,

The percent yield of the product is 83.0%

The actual yield of the product is 14.2 grams.

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This problem is providing us with both the concentration and moles of a solute and asks for the volume in liters. At the end, the answer turns out to be 0.5 L according to the following.

In chemistry, units of concentration are used to represent the relative amounts of both solute and solvent in different units. In this case, we refer to molarity due to the relationship between the moles of solute and the volume of solution as follows:

[tex]M=\frac{n}{V}[/tex]

Thus, having both the concentration and moles, 10 M and 5 moles respectively, one can obtain the following volume after solving for it:

[tex]V=\frac{n}{M} =\frac{5mol}{0.5 mol/L}\\\\V=0.5 L[/tex]

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Answer:

LTR

Explanation:

Answer:

The Abbreviation of liter is< ltr

Explanation:

Answer:B

Explanation:

Answer:

A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years.

It forms covalent compounds with sodium.

Answer:

knowing that something is a matter help you identify whether a substance is either solid, liquid or gas

Explanation:

knowing that a certain substance falls under the three groups is important. solid has a fixed volume, shape and mass, but cannot be compressed and cannot flow, liquid has a fixed volume but no fixed shape, cannot be compressed but can glow, gas has no fixed shape, no fixed volume, can be compressed and can flow

Answer:

1(li_2_10)

li_1-10.

1_10:9

Answer:

a jagged black line along the right side of the table separates the metals from the nonmetals. The metals are to the left of the line, the nonmetals are to the right of the line, and the elements immediately next to the line are the metalloids.

Explanation:

The electronic configuration helps to determine if the element is a metal or non-metal.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

Edward Jenner

Explanation:

In 1796, he tested a vaccine on a boy with cowpox and he became immune to smallpox.

Answer:

Explanation:

number 2 = A mixture that cannot be easily distinguished between the different parts. Distillation is one of the only ways to remove the parts from each other. For example, in a fruit salad you can easily pick things out, but in jello you cannot take the sugar out.

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number 1. = The density of the bone structure and weight are essentially determined in order to determine the person's bone structure. The bone density measurement involves the size of the wrist. Determining the body frame allows an individual to estimate the best weight.  

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[tex] \frac{5 \times {10}^{4} }{2.5 \times {10}^{2} } = 2 \times {10}^{2} \\ [/tex]

So the correct answer is (( a )) .

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Answer:

Atomic number is 30

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom it is also called nucleon number,

while the number of protons are number of electrons is the atomic number of an atom.

For example

if an element have 12 neutron and nucleon number is 42 it means the number of protons will be = nucleon number - number of neutrons

42 - 12 = 30

Thus atomic number is 30.

Answer:

30.

Explanation:

The nucleon or mass number is the total of protons and neutrons in the  nucleus.

Atomic number = nucleon number - number of neutrons in the nucleus

= 42 - 12

= 30.

Answer:

Releases Energy; burning a candle, producing electric current, and respiration in cells.

Absorbs Energy; activating a cold pack, baking bread, and photosynthesis.

Explanation:

Burning a candle releases heat energy into the surrounding area. The respiration process in cells does not produce any energy, so it must release it. Activating a cold pack absorbs energy in order to activate. Baking bread absorbs heat when baking, it releases it when cooling. Photosynthesis absorbs energy at the beginning of the process before releasing/using it.

This is 100% Correct, I checked this by taking the test and attached the image.

The reaction which displays an example of an arrhenius base is

NaOH(s) → Na⁺(aq) + OH⁻(aq).

According to the Arrhenius theory, those substance which gives H⁺ ion to the aqueous solution is acid and which gives OH⁻ ion to the aqueous solution is known as base.

All given chemical reactions will display an arrhenius acid, but only one reaction display as a arrhenius base as they gives OH⁻ ion to the aqueous solution and that reaction will be:
NaOH(s) → Na⁺(aq) + OH⁻(aq)

Hence option (1) is correct.

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Answer:

A: NaOH(s) ---> Na+(aq) + OH–(aq)

Explanation:

Answer:

the energy produced as part of the reaction and balancing the equation accounts for the energy produced

Answer:

The Answer is A!

Explanation:

Took the test and got a 90%

Latitude influences temperature by determining the duration of daylight.

This is defined as the measurement on a globe or map of location north or south of the Equator.

It helps to determine the duration of daylight which is usually warmer hence influencing the temperature thereby making option A the most appropriate choice.

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The net ionic equation for the reaction between  KC₆H₇O₂ and HCl is:

C₆H₇O₂⁻(aq) + H⁺(aq) ⇒ HC₆H₇O₂(aq)

The net ionic equation is a chemical equation for a reaction that lists only those species participating in the reaction.

KC₆H₇O₂(aq) + HCl(aq) ⇒ HC₆H₇O₂(aq) + KCl(aq)

HC₆H₇O₂ is a weak acid so we will write it in the molecular form.

K⁺(aq) + C₆H₇O₂⁻(aq) + H⁺(aq) + Cl⁻(aq) ⇒ HC₆H₇O₂(aq) + K⁺(aq) + Cl⁻(aq)

We will not include spectator ions.

C₆H₇O₂⁻(aq) + H⁺(aq) ⇒ HC₆H₇O₂(aq)

The net ionic equation for the reaction between  KC₆H₇O₂ and HCl is:

C₆H₇O₂⁻(aq) + H⁺(aq) ⇒ HC₆H₇O₂(aq)

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potential energy

kinetic energy

kinetic energy

idk last sorry =(

Answer:B

Explanation:There you go

Answer:

Frequency of wave is given 1.25 × 10²⁰ Hz

We have been asked to determine the wavelength of that wave ( in metres) .

We Know the speed of light in air/vacuum is

c = 3 × 10⁸ m/s

❍[tex]\\{\underline{\boxed{\green{\bf{f = \dfrac{c}{ \lambda} }}}}}[/tex]

Put the value we obtain

[tex]\sf \implies \: 1.25 \times {10}^{20} = \dfrac{3 \times {10}^{8} }{ \lambda} \\ \\ \sf \implies \lambda \: = \dfrac{3 \times {10}^{8} }{1.25 \times {10}^{20} } \\ \\ \sf \implies \lambda = \dfrac{3}{1.25 \times {10}^{12} } \\ \\ \sf\implies \lambda = 2.4 \times {10}^{ - 12} m [/tex]

So, the wavelength of the wave is 2.4 × 10⁻¹² m

It would be Gamma Ray .

Answer:

The fist option is correct

Explanation:

2 molecules of water have relatively large intermolecular force than a single molecule

Answer:

The total number of atoms must be the same on both sides in order for it to be a balanced chemical equation.

Explanation: