who can answer question 7​

Answer:

Most similar   -----  Lithium

Least similar   ----  Nitrogen

Explanation:

Cesium is an element on the periodic with the atomic number 133. It lies in group 1 (i.e., the alkali metals) and period 6 on the periodic table. The oxidation state of group 1 metals is +1. Cesium forms an oxide with oxygen as  [tex]Cs_2O[/tex].

The most similar compound to this chemical compound is Lithium because Lithium happens to be in the same group one metal with Cesium and forms the compound [tex]Li_2O[/tex] with the oxygen

The least similar compound nitrogen due to fact that it is an oxide that is covalent in nature and lies between-group 3 -17  to form an [tex]NO_2[/tex] with oxygen.

Answer:

bioremediation

Explanation:

Answer:

0.5m

Explanation:

Answer:

Tell your instructor immediately

Answer:

liquid

Explanation:

In the given context, the sample as collected by Carmen is clear  and the sample has a sour smell. It is also mentioned that the sample is thick sample and when the sample is poured on a surface it begins to flow.

Such a sample would be a liquid sample because anything that flows is a liquid. The liquid sample has a high viscosity since it is thick.

Answer:liquid

Explanation:

Because it flows

i cant understand your question define briefly

Answer:

the answer is level 2 to level 4

Explanation:

Answer:

[tex]d=1.6\ g/cm^3[/tex]

Explanation:

Given that,

The dimension of a square chunk of plastic is 5 cm × 5 cm × 5 cm

Mass, m = 200 g

We need to find its density

Density = mass/volume

It will form a cube. It volume = side³

So,

[tex]d=\dfrac{200\ g}{5^3\ cm^3}\\\\d=1.6\ g/cm^3[/tex]

Hence density is [tex]1.6\ g/cm^3[/tex]

Answer:

protons in the nucleus

The acceleration of the car is equal to 3.33 m/s² with a velocity of 72 Km/hr.

Acceleration can be demonstrated as the rate of change of velocity over time. The acceleration can be explained as vector quantity due to both magnitude and direction. Acceleration is defined as the 2nd derivative of the position of the object w.r.t. time.

According to Newton's 2nd law of motion, the force exerted is equal to the mass times of acceleration of an object.

a = F/m

or, a = dv/dt

Given, the final velocity of the car, v = 72 Km/hr

v = 72 × 1000/3600 m/s

v = 20 m/s

The time is taken by car to travel, t = 20 s

The acceleration of the car, a = (20 - 0)/(6 - 0)

a =  3.33 m/s²

Therefore, the acceleration of the car is 3.33 m/s².

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Answer:

To predict what triggers cell-to-cell communication

Explanation:

Methodologies used for studying cell-to-cell communication includes

1) The reductionist method in which cellular response are measured based on testing specific cellular signals by the introduction of different chemicals, so as to find the source that triggers the response

2) By the application of known chemical reagents enable or block specific areas of an organism's receptors and with the aid of an electrode measure the cellular response based on generated currents of ions or by collecting and analyzing fluid samples from the affected area.

Answer:

b

Explanation:

just took test

Answer: True

Explanation:

Answer:

idkkkkkkkklkllkkkkkkkkkkkkkk

Answer: The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)

Answer:

FALSE

Explanation:

The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)

Answer:

The sun

Explanation:

All living things get energy from different sources (a cow gets it from grass, dog gets it from meat), but eventually, most energy on Earth comes from the Sun. Plants use it to perform photosynthesis, other organisms eat plants, and so on!

Answer:

Gold

Explanation:

water = H2O(3 atoms)

Sugar = C12H22O11 (45 atoms)

Salt = NaCl ( 2 atoms)

Gold = Au ( 1 atom)

A substance that is composed of only one type of atom is gold. Thus, the correct option for this question is D.

An atom may be defined as the smallest unit of any matter that has the ability to form a chemical element. An atom may also be characterized as a particle of matter that uniquely illustrates a chemical element.

Water is composed of two atoms which are hydrogen and oxygen. Its chemical formula is [tex]H_20.[/tex] Sugar is a complex compound that consists of atoms of Carbon, hydrogen, and oxygen. Its chemical formula is [tex]C_6H_1_2O_6.[/tex] Salt typically consists of atoms of sodium and chlorine. Its chemical formula is NaCl.

Therefore, gold is a substance that is composed of only one type of atom. Thus, the correct option for this question is D.

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Answer:

For example: O2- indicates an ion of oxygen having two extra electrons. I.e., since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2).

Carbon has a total of six electrons and there are a total of ten electrons in the oxygen ion.

What we can easily find in common with carbon and oxygen atom is the fact that the both of them have two shells. We can also refer to these shells as energy levels.

In both atoms, the first shell contains only two electrons. For carbon, the second shell contains four electrons while the second shell of oxygen ion contains eight electrons.

Hence, Oxygen ion has two electrons in the first shell and eight electrons in the second shell(total of ten electrons) while carbon has two electrons in the first shell and four electrons in the second shell (a total of six electrons).

The electronic configuration of carbon is: 1s2, 2s2, 2p2

The electronic configuration of oxygen ion  is: 1s2, 2s2, 2p6

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Answer:

All can be charactoristics of a living thing

Explanation:

Answer:

Grow

Need energy

respond to stimuli

are made of cells

Explanation:

correct on edge 2022 :)

Answer:

true

Explanation:

Answer:

Here...

Explanation:

The feral hogs are most likely to compete with Herbivore and Carnivor for food sources. Option C is correct.

It is a type of food habit or nature in which an animal only eats plant or plants derived products.

For example Deer, Cows, etc.

It is a type of food habit or nature in which an animal only eats other animal or animal-derived food.

For example- Lion, tiger, etc.

Since,  feral hogs are omnivores who can eat both small animals and plants,

Therefore, the feral hogs are most likely to compete with Herbivore and Carnivor for food sources.

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Answer:

In the eukaryotic cell, the cytosol is surrounded by the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. The cytosol is thus a liquid matrix around the organelles.

Answer:

C

Explanation:

answer on khan

Answer:

Magnesium dichloride

Explanation:

Answer:

Conceptual

Explanation:

Answer:

Conceptual

letter B

Answer: 500

Explanation: there's 0.001L in every mL. Divide the mL

by 1000 or multiply the liter by 1000.

Answer:

An alkali metal present in period 2 have larger first ionization energy.

Explanation:

Ionization energy:

The amount of energy required to remove the electron from the atom is called ionization energy.

Trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.

Trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.  Thus alkali metal present in period 2 have larger ionization energy because of more nuclear attraction as compared to the alkali metal present in period 4.

Answer: 64

Explanation:

you just multiple the 3 numbers to get the answer (i’m in chemistry and just did this question lol)

Answer:

D

Explanation:

Answer:

Explanation:

At low temperatures or high pressures, real gases deviate significantly from ideal gas behavior.

The kinetic theory assumes that gas particles occupy a negligible fraction of the total volume of the gas. It also assumes that the force of attraction between gas molecules is zero.

I hoped I helped you! :)

Answer:

volume it's SI unit is cubic centimeters or cubic meters

density grams per cubic centimeters