how many protons are in each of the following

Answer:

Option C. 5.8×10¯¹⁷ J

Explanation:

The following data were obtained from the question:

Frequency (f) = 8.8×10¹⁶ s¯¹

Thus, we can obtain the energy of the light by using the following formula:

E = hf

Where E is the energy.

h is the Planck's constant.

f is the frequency.

Frequency (f) = 8.8×10¹⁶ s¯¹

Planck's constant = 6.63×10¯³⁴ Js

Energy (E) =..?

E = hf

E = 6.63×10¯³⁴ × 8.8×10¹⁶

E = 5.8×10¯¹⁷ J

Therefore, the energy of the light is 5.8×10¯¹⁷ J.

Answer:

solid matter is composed of tightly packed particles. A solid when we retain its shape the particles are not free to move around. liquid matter is made of more Loosely packed particles. It will take the shape of its container. Particles can move about within a liquid, but they are packed densely enough that volume is maintained. gaseous matter is composed of particles packed so loosely that it is neither a defined shape nor a Define volume. A gas can be compressed

Answer: sugar

Explanation:

Answer:

7 orbitals

Explanation:

An f sublevel has 7 orbitals

According to the Aufbau principle, the number of orbitals in a sublevel are determined, thus there are 7 orbitals in a f sublevel.

The aufbau principle , also called the aufbau rule, states that in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, then they fill subshells of higher energy.

Passing from one element to another of the next higher atomic number, one proton and one electron are added each time to the neutral atom. The maximum number of electrons in any shell is 2n², where n is the principal quantum number. The maximum number of electrons in a subshell is equal to 2(2l + 1), where the azimuthal quantum number l is equal to 0, 1, 2, and 3 for s, p, d, and f subshells, so that the maximum numbers of electrons are 2, 6, 10, and 14 respectively.

Thus,  there are 7 orbitals in a f sublevel.

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Explanation:

(1) 1 m = 100 cm

1.45 m = 100 × 1.45 cm = 145 cm

(2) 1 kg = 1000 g

325 g = 0.325 kg

(3) 1 L = 1000 mL

0.0024 L= 2.4 mL

(4) 1 km = 1000 m

[tex]1.55\times 10^4\ m=1.55\times 10^4\times 0.001=15.5\ km[/tex]

(5) 1 mm = 0.001 m

[tex]4.75\times 10^{-2}\ m=4.75\times 10^{-2}\times 1000\ mm\\\\=47.5\ mm[/tex]

(6) 1 kg = 100000 cg

0.459 kg = 45900 cg

(7) 1 dm = 10⁻⁴ dm

5,995 dm = 5,995 × 10⁻⁴ km

(8) 1 g = 1000 mg

450 g = 450000 mg

(9) 1 dm = 100 m

0.003 dm = 0.3 mm

(10) 1 mL = 0.001 l

4.567 × 10⁴ mL = 45.67 L

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

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Answer:

The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer .

The average global temperature of the Earth has increased by almost two degrees in the last century.

Explanation:

Science and pseudoscience differs in terms of scientific methods involved in any study. Science deals with the practices and beliefs that undergo a method of scientific study. Pseudoscience is the term associated with the ideas and beliefs that tend to be scientific in nature but they fail in their execution of following the scientific methods.  

From the given options, two of them are the examples of science and not pseudoscience.

Answer:

7. 5

8. 4 or 5

9. 3 or 4

10. 4

11. 1 or 2 or 3 or 4

12. 6

Explanation:

7. 5

8. 4 (excluding the 0) or 5 (including the 0)

9. 3 (excluding the 0 at the back) or 4 (including the 0 at the back)

10. 4

11. 1 or 2 or 3 or 4 (according to the number or 0s included)

12. 13.04 × 104 = 1356.16

ans: 6

Answer:

1.C

2.E

3.B

4.A

5.D

Explanation:

C- Pure element - one type of atom present

E- Mixture of two elements - two types of uncombined atoms present

B- Pure compound - only one type of compound present

A - Mixture of two compounds - two types of compounds present

D- Mixture of a compound and an element

The images represent;

In image C, there is only one kind of uncombined representation, this corresponds to a pure element

Image E has two uncombined representations which corresponds to a mixture of two elements

Image B consists of only one type of combined representation. This corresponds to a pure compound.

Image A shows two kinds of combined representations. This corresponds to a mixture of two compounds.

Image D consists of some combined representations and some uncombined representations. This corresponds to a mixture of a compound and an element.

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Answer:

The evidence that is most likely to support the idea that dinosaurs and their ancestors could have coexisted for millions of years is bones of three different species were found in the same rock layer (option D).

Explanation:

Fossils have been the strongest evidence of the existence of extinct species in the remote past. The discovery of some species and their possible ancestors in the same layer of rocks confirms the possibility of the coexistence of evolutionary forms of the same species, for a great period of time.

Once the fossils have been found, paleontologists use molecular genetic techniques to identify the fossils and their relationship with others found in the same place.

The approach suggests that it is not necessary for a species to become extinct in order for its evolutionary descendant to appear, considering coexistence for thousands or even millions of years.

The other options do not provide solid evidence to support this approach.

A. Fewer fossils were found of amphibians than of dinosaurs, which does not specify an evolutionary relationship.

B. More fossils found were of larger organisms than of dinosaurs,  which is not true, because species descended from dinosaurs tend to be smaller.

C. Herbivore bones were found in each rock layer, not related to the approach.

Answer:

the answer is C

Explanation:

Answer:

17.76 cm x 9.21 cm x 4.45 cm = 727.9 cc. Calculate the weight of the gold bar using the density of gold, which is: 19.3 g/cc. Use the density ...

elements are arranged by the atomic number of the element

Answer:

atomic number=proton=electron= 13

neutrons= 14

Nitrate compounds is the answer

Answer:

Smelting reduction employs two units: in the first, iron ore is heated and reduced by gases exiting from the second unit, which is a smelter-gasifier supplied with coal and oxygen. The partially reduced ore is then smelted in the second unit, and liquid iron is produced.

Answer:

The amount of each element that begins photosynthesis equals the amount of each element that is produced

Explanation:

Photosynthetic reaction is the combination of water and carbon dioxide with the aid of light energy to form glucose and oxygen. The amount of reactants are equal to the amount of product in this reaction. Hence, option C is correct.

Photosynthesis is a biochemical process by which water and carbon dioxide combines to form energy and oxygen with the aid of light energy. The green pigment chlorophyll a photoactive substance absorbs sufficient heat energy for this process.

According to mass conservation law, mass can neither be created nor be destroyed. Thus,  in a chemical reaction, the total mass of the reactants will be equal to the total mass of products.

The photosynthetic reaction is written as follows:

[tex]\rm 6CO_{2} + 6H_{2}O \rightarrow C_{6}H_{2}O_{2} + 6O_{2}[/tex]

It is clear from this balanced reaction that, all the elements in each side are equal in  number and thus no mass is lost or gained and thus, obeys mass conservation law. Hence, option C is correct.

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Answer: It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture. A Orange juice contains particles of solid (pulp) as well as liquid; it is not chemically pure.

Answer:

Magma is formed by both wet and dry melting processes. By melting different parts of the layers of the earth, basaltic, rhyolitic and andesitic magma will be formed. Wet and Dry Melting In order for magma to form, wet or dry melting of rocks or minerals must occur.

Explanation:

I got it from google!

Answer:

it may cause temperature increases in or pressure decreases on mantle rock, when water is added to rock. decreasing pressure and adding fluids

Explanation:

Answer:

D. Two, colorless liquids are added together, and a colorless liquid and a green solid remain.

Explanation:

Two, colourless liquids are added together, and a colourless liquid and a green solid remain. Hence, option D is correct.

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

In the scenarios mentioned in the question, all are considered under chemical reactions.

● In the first reaction when gas is turned into a liquid and energy is released few molecules get transformed into other compounds and hence chemical change takes place.

● In the second case when two white solids are mixed in a colourless liquid the two white solids get dissolved in the colourless liquid forming a new solution which is a chemical change.

● In the third case two colourless liquids are added together and a colourless liquid and a green solid are the products of IT in this case also a chemical reaction takes place resulting in the formation of a green colour Residue.

Two, colourless liquids are added together, and a colourless liquid and a green solid remain. Hence, option D is correct.

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Answer:

no

Explanation:

physical is human touch for example. while social is taking and hanging out or just talking on the phone.

Answer:

Light Exposure and Water Movement. Along with food, algae require the right amount of light to thrive. ... Filamentous algae will typically grow around the shoreline of a pond or lake because this is where the shallower water is.L

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Answer:

algae will typically grow around the shoreline of a pond or lake because this is where the shallower water is.

Explanation:

the genes are located within the chromosomes. the chromosomes are inside the nucleus .the nucleus is inside the cell, therefore the correct diagram in B

Answer:

Inside it's usually warm so when you open a door to outside which is cold a cold front and a warm front will be exposed to each other cold will win usually since cold goes below the warm front.

Explanation:

Answer:

Would it be 7.69 seconds?

Explanation: