Below are models of two types of cells. Which of the following structures 2 points
are common to both cell types?
A. mitochondria and vacuoles
B. mitochondria and cell wall
C. vacuoles and chloroplasts
D. cell wall and chloroplasts

Answer: decay

Explanation:

Answer:

A-Have high melting and boiling points

B- Are hard

D- Are good conductors of electricity when dissolved in water

Explanation:

The characteristics of ionic compounds are: have high melting and boiling points ,are hard , good conductors of electricity when dissolved in water.

Explanation:

Properties of ionic compounds

So, from this, we can conclude that from the given characteristics the characteristics of ionic compounds are: have high melting and boiling points ,are hard , good conductors of electricity when dissolved in water.

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Answer:

all of the above

Explanation:

Answer: All of the above

Explanation:

Answer:

B. 16, 18, 18

Explanation:

Particle;

              ³⁴₁₆S²⁻

The number of particles we seek is the protons, neutrons and electrons.

    ³⁴₁₆S²⁻ is an ion that has gained two electrons from its stable state.

34 is the mass number  = number of protons + neutrons

16 is the atomic number  = number of protons

Number of protons  = 16;

 Number of neutrons  = mass number - atomic number

                                     = 34 - 16

                                     = 18

Number of electrons; In a neutral atom, the number of protons and electrons are the same.

 This atom has gained two more electrons

         16  + 2 = 18

Answer;

         16, 18 , 18

Answer:

The temperature of the water affects the amount of dissolving but it also affects the rate of diffusion.

Explanation:

Answer:

Yes, temperature can impact the ability of water to dissolve things, the solubility increases with temperature.

Explanation:

The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

Answer:

reproduction

Explanation:

its on study island

Answer:

Ⓑ Both plants and animals release energy from glucose/sugar in cellular respiration.

Both plants and animals release energy from glucose/sugar in cellular respiration is a statement about cellular respiration in plants and animals is true. Option B is correct.

Name given cellular respiration is a process in which cells convert oxygen into carbon dioxide for respiration which is important for survival.

In cellular respiration, the metabolism of breaking down complex oxygen into energy like ATP or sugar, or glucose can occur and releases some amount of energy too.

Therefore, Option B is correct.  Both plants and animals release energy from glucose/sugar in cellular respiration is a statement about cellular respiration in plants and animals is true.

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Answer:

6 oxygen atoms

Explanation:

For example – glucose (C6H12O6), a common sugar molecule, is made up of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

Answer:

to study sub terranian earth movements

Explanation:

8H earth science

Answer:

B-to determine the location of an epicenter

Explanation:

Seismologists study earthquakes by going out and looking at the damage caused by the earthquakes and by using seismographs. A seismograph is an instrument that records the shaking of the earth's surface caused by seismic waves and determine the location of an epicenter

-Source: Geo.mtu.edu

The answer is C

Lewis structures have a central atom and a terminal atom

The central atom is an atom that is bound to 2 or more other atoms, while a terminal atom is bound to 1 other atom

In describing Lewis's structure the steps that can be taken are:

1. Count the number of valence electrons from atoms in a molecule

2. Give each bond with a pair of electrons

3. The remaining electrons are given to the terminal atom so that an octet is reached

4. The remaining electrons that still exist in the central atom

5. If the central atom is not yet octet, free electrons are drawn to the central atom to form double bonds

Nitrogen -N : valence electron : 5 , need 3 electron for stable⇒central atom

Chlorine-Cl : valence electron : 7, need 1 electron for stable⇒terminal atom

So that N will bind 3 Cl atoms to get stability (using electrons together with covalent bonds), so that there is 1 lone pair in N atoms and 3 lone pairs from each Cl atom (a total of 10 lone pairs of electrons)

Answer:

Spring tides have higher high tides and lower low tides whereas neap tides have lower high tides and higher low tides.

Explanation:

Answer:

Spring tides have higher high tides and lower low tides whereas neap tides have lower high tides and higher low tides. Hence, the range (difference in water level between high and low tide) is much larger in a spring tide than in a low tide.

Answer:

Properties of seismic waves

Explanation:

Most of the inferences about the characteristics of earth's mantle and core are based on the properties of seismic waves.

Answer:

Reactions take place too slowly at body temperature and must be speeded up.

Explanation:

Reactions take place too slowly at body temperature and must be speeded up.

An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process. Enzymes are required for living things to function because they speed up chemical reactions. Enzymes are protein catalysts.

Reactions take place too slowly at body temperature and must be speeded up.

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Answer:

Half life = 1.83 sec

Explanation:

Given data:

Total amount of Ar-35 = 1.80 g

Amount left after 5.49 sec = 0.225 g

Half life of Ar-35 = ?

Solution:

At time zero = 1.80 g

At first half life = 1.80 g/2 = 0.9 g

At 2nd half life = 0.9 g/2 = 0.45 g

At 3rd half life = 0.45 g/2 = 0.225 g

Half life:

Half life = Time elapsed / number of half lives

Half life = 5.49 sec / 3

Half life = 1.83 sec

Answer:

Molecular formula, C8H16O4; empirical formula, C2H4O

Explanation:

When there is just one atom of an element in a molecule, no subscript is used in the chemical formula.

Answer:

C. transition elements

Explanation:

Transition elements are groups of metallic elements that have partially filled d orbitals. They occupy the d-block of the periodic table (Group 3-12). Examples of elements that fall under this category are Nickel (Ni), Cobalt (Co), Copper (Cu), Zinc (Zn) etc. Transition metals have outstanding properties that distinguishes them from other elements.

One of these properties is their ability to form colored compounds due to their unfilled d electron shells. They form ions that are usually colored in solid compounds and in solution.

The elements that have been colored in the solid and solution have been transition elements.Thus, option C is correct.

The periodic table has been consisted of metals, non-metals, and metalloids. The presence of valence electrons of the elements has been responsible for the chemical properties of the elements.

The transition elements have been the metals that have been consisted of electrons in the d orbitals. The presence of electrons results in the atom to excited to higher energy and have radiations in the visible region.

Thus, the aqueous and solid transition elements have been colored. Thus, option C is correct.

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Answer:

Sep by step to determine the mass of 25 mL of orange juice

Explanation:

Measure mass of container , then add 25 mL of OJ and subtract the difference

Answer:

We attach when we are convinced that we are incapable of healing ourselves or giving ourselves what we really want and need.

Explanation:

Hope you get right

The concentration inside the cell is greater than outside describes a cell after diffusion. Therefore, the correct option is option A among all the given options.

Diffusion is regarded a passive mode of cellular transport in biology since it does not require additional energy to occur. It is the primary mode of transport for vital chemicals (such as amino acids) between cells. It is necessary for the production of energy via respiration and photosynthesis.

Some chemicals, referred to as "simple diffusion," are not controlled by the cell's own proteins. membrane. It is found in substances with low molecular weight, such as water, gasses and fat-soluble compounds. The concentration inside the cell is greater than outside  describes a cell after diffusion.

Therefore, the correct option is option A.

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Answer:

Zirconium has 40 protons and 51 neutrons

A clear explanation of misconception of sugar is energy and energy is sugar is below.

Sugars are the disaccharide carbohydrate, it means they are formed by the combination of two monosaccharides.

One of the component of the sugar is glucose and we know that glucose is the source of energy in our body. So, sugars are naturally present in many food substance which in turn breaks down in the glucose and their composite constituent and releases energy. But we can never compare sugar as the main source of energy or equivalent to energy.

Hence, Energy means sugar is the misconception.

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Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

volume = final volume of water - initial volume of water

volume = 36.5 - 31.4 = 5.1 mL

But

1 mL = 1 cm³

5.1 mL = 5.1 cm³

From the question we have

[tex]density = \frac{75}{5.1} \\ = 14.705882..[/tex]

We have the final answer as

Hope this helps you

Answer:

Al and Hcl

Explanation:

Reactants are the elements, compounds etc before the arrow

Answer:

There are 14.2 moles of carbon in 170.3 grams of carbon

Explanation:

The mass of one mole of carbon is known as the molar mass of carbon. the unit of molar mass is grams/mole, g/mol.

The molar mass of carbon is 12 grams. This means that for every 12 grams of carbon, one has one mole of carbon.

To determine the number of moles of carbon present in 170.3 grams of carbon, the given mass of carbon, that is 170.3 grams is divided by 12.

The formula to use is: number of moles = mass of substance/molar mass of substance

Number of moles of carbon = 170.3 g / 12 g/mol = 14.2 moles

Therefore, there are 14.2 moles of carbon in 170.3 grams of carbon

Answer:

Answer:

The potential energy of the two vehicles increased because they were moved against the magnatic forces. The potential energy of the pink car increased more then the potential energy of the purple car because the pink car was closer to the center magnet.

Explanation: I had this same exact question on a quiz and this was my response and I got a 100%

The effects of the movement of the cars closer to the center of the magnet are ;

A) The potential energy of the Two vehicles will be increased

B) The potential energy of one car ( pink car) will change more than purple car due to the distance between the pink car and the center magnet.

Potential energy is the energy contained in a body at rest, The increase in potential energy occur when an object continues to be at rest ( i.e. opposes movement ).

When the cars are moved closer to the center magnet the cars will oppose the motion because their movement is against the magnetic forces that exist between the center magnet and the cars ( i.e. like pole repel while unlike poles attract ).  so as Lucia moves the cars closer their potential energies will continually increase ( i.e. the closer the car the higher its potential energy ).

Therefore the pink car been closer to the center magnet will experience a higher change in its potential energy than the purple car.

Hence we can conclude that The effects of the movement of the cars closer to the center of the magnet are ;  The potential energy of the Two vehicles will be increased, The potential energy of one car ( pink car) will change more than purple car due to the distance between the pink car and the center magnet.

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Answer: 8.830418848725065

Explanation:

8.830418848725065