What structures perform similar functions in plant and animal cells?

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Answer:

B) Lithium ions have 1 positive charge, and phosphorus ions have 3 negative charges.

Explanation:

Lithium phosphide is an ionic compound in which lithium ions have 1 positive charge, and phosphorus ions have 3 negative charges. Therefore, option A is correct.

An ionic compound is a type of chemical compound that is composed of ions held together by electrostatic forces of attraction. These compounds are typically formed through the transfer of electrons between atoms, resulting in the formation of positively charged cations and negatively charged anions.

Ionic compounds often form crystal lattice structures due to the strong electrostatic forces between the ions. They tend to have high melting and boiling points.

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Answer:

The ability to conduct electricity

Answer:

Good conductors of heat and electricity

Answer:

well 6.3 times 10 is 63 and 6.7 times 10 is 67

Explanation:

Answer:

10

[tex] \frac{2.0.10(410)}{8.0.10( - 240)} = \frac{10(650)}{40} [/tex]

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

A time machine is a device which can transport an object or person back in time or in to the future.

Ali Razeghi is the person who invented the time machine.

Answer:

The longest-running show in Broadway history officially opened on January 26, 1988 and is still playing at the Majestic The Andrew Lloyd Webber musical won 7 1988 Tony Awards including Best Musical.

Explanation:

Brainliest plz?

Answer:

A

Explanation:

Water freezing and thawing involves no chemical change.  It has a chemical formula of H2O whether it is ice or water.

Answer:

[tex]\Delta p=-2.60bar\\ \\\Delta p=-0.260MPa[/tex]

Explanation:

Hello,

In this case, by using the Bernoulli equation:

[tex]p_1+\frac{1}{2}\rho v^2_1+\rho gh_1= p_2+\frac{1}{2}\rho v^2_2+\rho gh_2+\rho h_L[/tex]

Whereas [tex]h_L[/tex] accounts for the heat loss, so we can compute the change of pressure by:

[tex]p_1 +\frac{1}{2}\rho v^2_1+\rho gh_1= p_2+\frac{1}{2}\rho v^2_2+\rho gh_2+\rho h_L\\\\p_2-p_1=\frac{1}{2}\rho v^2_1+\rho gh_1-\frac{1}{2}\rho v^2_2-\rho gh_2-\rho h_L\\\\\Delta p=\rho *[\frac{1}{2}(v_1^2-v_2^2)+g(h_1-h_2)-h_L ][/tex]

Thus, we must first compute the velocity inside the 5-cm section by using the continuity equation:

[tex]v_2=v_1\frac{A_1}{A_2}=v_1*(\frac{\pi d_1^2/4}{\pi d_2^2/4} ) \\\\v_2=1.2m/s*\frac{8cm}{5cm}=1.92m/s[/tex]

It means that the change in pressure in Pa turns out (density is 1500 kg/m³ given the specific gravity of the fluid):

[tex]\Delta p=1500\frac{kg}{m^3} *[\frac{1}{2}((1.2\frac{m}{s})^2-(1.92\frac{m}{s})^2)+9.8m/s^2(0m-15.0m)-25\frac{m^2}{s^2} ]\\\\\Delta p=1500\frac{kg}{m^3}*(-1.1232\frac{m^2}{s^2} -147\frac{m^2}{s^2} -25\frac{m^2}{s^2} )\\\\\Delta p=-259684.8Pa[/tex]

Therefore, the change in pressure in bar and MPa turns out:

[tex]\Delta p=-259684.8Pa*\frac{1bar}{1x10^5Pa}=-2.60bar\\ \\\Delta p=-259684.8Pa*\frac{1MPa}{1x10^6Pa}=-0.260MPa[/tex]

Such negative sign means that the pressure at the 5-cm section is lower than the pressure at the 8-cm section.

Best regards.

Answer:

Barium (Ba)

Explanation:

Answer:

Ba, or Barium

Explanation:

Alkaline Earth Metals are in the 2nd group of the Periodic Table.

Be

Mg

Ca

Sr

Ba

Ra

These are the Alkaline Earth metals. They start on Period 2:

Period 2 - Be

Period 3- Mg

Period 4 - Ca

Period 5 - Sr

Period 6 - Ba

Period 7 - Ra

Answer:

yes

Explanation:

The outermost shell of sodium contain only one electron . Due to incomplete octet (8electron in outermost shell ) sodium atom is unstable. Now the outermost shell of of Na+ contain 8 electron . due to completion of octate , Na+ is more stable

Answer:

D = 2 g/cm³

Explanation:

Density = mass over volume

D = m/v

Step 1: Define

m = 4 grams

v = 2 cm³

Step 2: Substitute and Evaluate

D = 4 g/2 cm³

D = 2 g/cm³

Answer:

false

Explanation:

Answer:

Option C is correct = fluorine

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

This diagram show that there are 9 electrons and 9 protons are present. We know that the number of protons or electrons are atomic number of that element. From periodic table we know that atomic number of fluorine is 9 thus the given atom present fluorine atom.

Answer:

Solid : The intermolecular space is very less

Liquid : The intermolecular space is fairly more than in solids

Solid : It has a fixed shape

Liquid : It has a fixed volume but shape changes according to where it is placed

Solid : eg : Books

Liquid : eg : water

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Answer:

Liquids have the following characteristics:

No definite shape (takes the shape of its container).

Has definite volume.

Particles are free to move over each other, but are still attracted to each other

Explanation:

ye

Answer:

A will float on top of B.

Explanation:

B is more dense. example A is oil and B is water.

Answer:

Option A is correct.

Explanation:

Given data:

Mass of ammonia = 1.6 g

Volume of water = 147 mL

Concentration in ppm = ?

Solution:

As we know that,

1 g/mL = 1000000 ppm

1.6 g/147 mL = 0.011 g/mL

Now we will convert the 0.011 g/mL into ppm.

0.011 × 1000000 = 11000 ppm

In scientific notation:

1.1×10⁴ ppm

Thus, option A is correct.

Answer:

-1

Explanation:

Electrons have a negative charge, so when you add an electron to an element their charge goes down by 1.

Answer:

Mixture is the answer.

Answer:

It will take Marvelous 160 miles per hour east to travel 21 miles.

Explanation:

Because 21 times 6= 160 and make sure to add the per hour east because thats the velocity.

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.......

Answer:

Activation of the ring towards substitution: NH2, OCOCH3

Withdrawal of electrons through resonance. COOH, SO3H

Explanation:

During electrophilic substitution, certain substituents may activate or deactivate the benzene ring.

Substitients that activate or deactivate the benzene ring may do so via resonance or inductive effect.

Groups such as -NH2 and OCOCH3 activate the ring via resonance while groups such as -SO3H and -COOH deactivate the ring via resonance.

Answer:

the answer is ionic

Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom. ... The atom that loses the electrons becomes a positively charged ion (cation), while the one that gains them becomes a negatively charged ion (anion). A brief treatment of ionic bonds follows

Answer:

PLANT CELLS- have cholorplasts, always have cell walls

Animal cellss- never have. Acell wall

Bacteria cells - are projaryotic sometimes have cell walls. Have nucleiod

Explanation:

The photosynthetic pigment chlorophyll is found in the chloroplast, an organelle that uses sunlight to produce energy and release oxygen from water. Organelles found in plant cells called chloroplasts use the photosynthetic process to change light energy into relatively stable chemical energy.

Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.

An animal cell is a type of cell that is only found in animal tissues, as the name suggests. It is distinguished by having cell organelles that are encapsulated inside the cell membrane but without a cell wall.

PLANT CELLS- have chloroplasts, always have cell walls

Animal cells- never have. Acell wall

Bacteria cells - are prokaryotic and sometimes have cell walls. Have nucleoid

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