How were all living things classified

The answer is C.

This can be concluded by looking at the other answers and eliminating them one-by-one.

Managing (Or conserving) a natural resource means to sustain it and use it as efficiently as possible.

With this in mind, we can look and eliminate certain answers.

A is incorrect because driving a car uses gas, a natural resource. By using as much gas as possible, the resource would be wasted instead of conserved.

B is incorrect because water is a natural resource. Once again, by using this, it's wasted where it could be conserved.

C is correct because planting trees would conserve the resource; by consistently planting trees where they're cut, the chances of running out of wood decrease.

D is incorrect because both the water and the creatures that live inside it are natural resources. By dumping toxic waste, these resources are wasted where it could be conserved.

Hope this helped you! :)

Answer:

C

Explanation:

this is pretty self explanatory

Answer:

1034.88J

Explanation:

Given that:

mass (m) = 11.2 g, initial temperature = 0°C, final temperature = 22°C, the specific heat capacity of water (C) = 4.2 J/g°C

Temperature difference (ΔT) = final temperature - initial temperature = 22 - 0 = 22°C

The quantity of heat (Q) required to melt the ice can be calculated from the equation:

Q = mCΔT

Q = 11.2 g × 4.2 J/g°C × 22°C

Q = 1034.88J

Answer:

Toaster

Explanation:

When you put a frozen food *aka waffles* in a toaster, it heats up, melting the ice and coming out crispy and crunchy.

~Jack Pullman

p.s. Mark for Brainiest!

Answer:

The one that isnt a fact is that all balls are made of leather.

Good luck! Hope this helped!

:)

Explanation:

The net force on the rope is equal to zero as both forces are in equal magnitude but in opposite directions.

The net force on an object can be defined as the vector sum of all forces acting on a particle or object. The net force can be described as a single force representing same the effect of the actual forces on the motion of a particle. Net force offers the same value of acceleration as all those actual forces together.

The net force has a similar effect on the rotational motion as all actual forces taken together so it becomes the resultant force. It.

In the given problem, the applied force by Jared and James is in the opposite direction of the force applied by Mr. Collins.

Given, the force applied by James and Jared in the left direction= 300N

The force applied by Mr. Collins in the right direction = -300N

The net force on the rope = 300N + (-300N) = 0

Learn more about the net force, here:

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Answer:

Green food coloring diffusing through cookie dough.

Explanation:

Entropy is a physical quantity for an equilibrium thermodynamic system that measures the degree of organization of the system, or that is the ratio of an increase in internal energy to an increase in temperature of the system.

When the green dye diffuses through the cookie dough there is an increase in entropy, that is, there is an increase in system disorder at the molecular level, where a change in cookie dough occurs.

Answer:

B. green food coloring diffusing through cookie dough

Explanation:

Answer:

Static electricity caused the it to be pulled toward each other like magnets. Also, positives and negatives attract.

Explanation:

Answer:

This was due to static electricity or electrostatic induction.

Explanation:

Electrostatic induction, is a redistribution of charges in an object caused by the electric field of a nearby charge. For example, if a positively charged piece of cloth is brought near negatively charged sock, the mobile negatively-charged electrons in the sock will be attracted by the external charge, and move to the side of the metal facing it, creating a negative charge on the surface. When the electrons move out of an area they leave a positive charge due to the metal atoms' nuclei, so the side of the metal object facing away from the charge acquires a positive charge. These induced charges disappear when the external charge is removed.

Static electricity is usually caused when certain materials are rubbed against each other, like wool on plastic or the soles of shoes on carpet. The process causes electrons to be pulled from the surface of one material and relocated on the surface of the other material.

The number of carbon atoms present in a 2.5 carat diamond is approximately 2.5 x 10^22, determined by first converting the weight of the diamond to grams, then to moles utilizing the molecular weight of carbon, and finally to atoms using Avogadro’s number.

To determine the number of carbon atoms present in a 2.5 carat diamond, we need essential information about carbon and the diamond. The molecular weight of carbon (C) is 12.01 g/mol. We also know that a carat is 200 milligrams (mg) or 0.2 grams (g).

So, a 2.5-carat diamond weighs 0.2 g * 2.5 = 0.5g. We convert the mass of the diamond into moles using the molecular weight of carbon: 0.5 g / 12.01 g/mol = 0.0416 moles.

Then, knowing that one mole of any substance contains Avogadro's number of entities (approximately 6.022 * 10^23), we multiply the number of moles by Avogadro’s number: 0.0416 moles * 6.022 * 10^23 atoms/mole = 2.5 * 10^22 carbon atoms.

So, a 2.5 carat diamond contains about 2.5 * 10^22 carbon atoms.

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Answer:

1.Legs

2.Arms and hands

3.Armor

4.Skeletal

5.Carpenters

6.Brain

7.Skin

8.Blood

Explanation:

You can google dem and it will show you all the answers

Answer:

legs

arms and hands

skeletal system

carpenter

brain

skin

blood

Explanation:

Answer:

the object causes the light to change direction & the light bends enough to seperate the colors

also, tell me if i'm wrong

Answer: 5.9%

Explanation: e2020

Answer:

c) 5.9%

Explanation:

got it correct on edg

Answer:

The both must be balanced and every input must be accounted for at the output.

Explanation:

In taking inventory at the store, one must make sure that the total inventory is always balanced at the end of the inventory log (all stocks taking out must be accounted for in the end) so also is the chemical reaction in which the total reactants species atoms must equal the total product specie atoms.

The pH of the solution with a hydronium ion concentration of 1.3x10⁻³ M is calculated to be approximately 2.886, indicating that the solution is acidic.

The pH of a solution is calculated using the formula pH = -log[H3O+], where [H3O+] is the hydronium ion concentration in moles per liter (M). Given a hydronium ion concentration of 1.3x10^-3 M, we calculate the pH as follows:

Write the concentration of hydronium ions as 1.3x10⁻³ M.

Apply the pH formula: pH = -log(1.3x10⁻³).

Calculate the logarithm: pH = -(-2.886) = 2.886.

Therefore, the pH of the solution is approximately 2.886, which indicates that the solution is acidic.

Answer:

The metal probably increases reaction rate by either holding reactant molecules in the correct orientation to react or by weakening or breaking bonds in reactant molecules to make them more reactive.

This is an example of heterogeneous catalysis.

It is heterogeneous catalysis because the catalyst is a solid and the reactants are gases. In heterogeneous catalysis, the catalyst is in a different phase than the reactants

Explanation:

got it right :)

Answer:

The metal probably increases reaction rate by either holding reactant molecules in the correct orientation to react or by weakening or breaking bonds in reactant molecules to make them more reactive.This is an example of heterogeneous catalysis. It is heterogeneous catalysis because the catalyst is a solid and the reactants are gases. In heterogeneous catalysis, the catalyst is in a different phase than the reactants.

Explanation:

Answer:

Thus, as both an amphoteric compound and the most common liquid on Earth, it follows that water is both the most common acid as well as the most common base on planet Earth

The most common acid in the world is sulfuric acid (H2SO4), and the most common base is sodium hydroxide (NaOH).

Acids and bases are common substances found in many everyday items. The most common acid in the world is sulfuric acid (H2SO4). It is used in various industrial processes and has a wide range of applications.

The most common base in the world is sodium hydroxide (NaOH). It is commonly known as caustic soda and is used in many household products such as detergents and drain cleaners.

Answer:

7.50

Explanation:

pH=-log(H3O+)

- Hope that helps! Please let me know if you need further explanation.

Answer: 36.8 L

hope this helps

Answer:

The confounder

Explanation:

A confounder is a quality or variable that affects the results of the study but is not included in the study itself

Answer:

4 & 5

Explanation:

Answer:

4

5

Explanation:

got it right on edg 2021

Answer:

0.78 mol O2

Explanation:

2SO2 + O2  -> 2 SO3

64 g SO2  -> 1 mol SO2

100 g SO2 -> x

x= (100 g SO2 * 1 mol SO2)/64 g SO2     x=1.56 mol SO2

1 mol O2 -> 2 mol SO2

         x    -> 1.56 mol SO2

x= (1.56 mol SO2 * 1 mol O2)/2 mol SO2          x=0.78 mol O2

Answer:

0.7804

Explanation:

Answer:

3.09 × 10-27  kg

Explanation:

I also had this question on edge and got it correct

Answer:

the answer is C

Explanation:

just took this on eng2020

Answer:194.1411 g/mol

Explanation:

Answer:

E) 3.0x10⁻¹²

Explanation:

Ksp of Cu(OH)₂ is defined as:

Cu(OH)₂(s) ⇄ Cu²⁺(aq) + 2 OH⁻(aq)

Ksp = [Cu²⁺] [OH⁻]²

When pH is 10.1,  [OH⁻] is:

pOH = 14 - pH

pOH = 3.9

pOH = -log [OH⁻]

[OH⁻] = 1.26x10⁻⁴M

Replacing in ksp formula:

4.8x10⁻²⁰= [Cu²⁺] [1.26x10⁻⁴]²

3.0x10⁻¹² = [Cu²⁺]

That means the maximum amount of Cu²⁺ that can be in solution is 3.0x10⁻¹²M, thus, molar solubility of Cu(OH)₂ is

E) 3.0x10⁻¹²

Answer:

Left and right: two forces

Total: four forces

Explanation:

If it's just the forces that they are using it would be two the force of each person's hand on the other. However there is also gravity pulling down on their hand but they use another force to pull it up which you can call the normal force.

if this helped please hit the thanks button <3

Answer:

Left and right= two

So the total is four forces.

When KOH and Cu(NO3)2 are mixed in aqueous solution, no precipitation occurs as all ions remain solvated, hence the complete ionic equation shows no net change and is written as NR (no reaction).

When KOH (potassium hydroxide) and Cu(NO3)2 (copper(II) nitrate) are mixed in aqueous solution, a double displacement reaction occurs. KOH is a strong base and fully dissociates into K+ and OH− ions in water. Cu(NO3)2 is a soluble salt and dissociates into Cu2+ and NO3− ions.

However, no precipitate is formed in this reaction since all the ions remain in solution. Therefore, the complete ionic equation is:

K+(aq) + OH−(aq) + Cu2+(aq) + 2NO3−(aq) → K+(aq) + 2NO3−(aq) + Cu2+(aq) + OH−(aq)

After canceling the spectator ions, we are left with NR (no reaction) since there is no net change in the species present in the solution.

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Answer:

lonic

Explanation:

MgF2 ( Magnesium fluoride ) is ionic.

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⊕ΘΞΠΤ⊕      

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Final answer:

Magnesium fluoride (MgF₂) is an ionic compound formed by the transfer of electrons from metallic magnesium to nonmetallic fluoride, resulting in Mg2+ cations and F- anions held together by ionic bonds.

Explanation:

Magnesium fluoride (MgF₂) is an ionic compound. This is because it is formed from magnesium, a metal with a low electronegativity, and fluoride, a nonmetal with a high electronegativity. The electronegativity difference between magnesium and fluoride leads to the transfer of electrons from magnesium to fluoride, creating Mg2+ cations and F- anions. These ions are held together by strong electrostatic forces, known as ionic bonds, which result in the formation of an ionic solid. Ionic compounds have certain characteristics such as high melting points due to the strong ionic bonds in their lattice structure.

Examples of other ionic compounds include KCl, NaCl, and MgCl₂, all of which are made up of a metal and a nonmetal, just like magnesium fluoride. The type of bonding in a compound like MgF₂ also leads to properties such as poor conductivity in the solid state but the ability to conduct electricity when molten. This is because the ions are fixed in place in the solid lattice but can move freely when in the liquid state.

Answer:

Increases, since higher the charge concentration higher the electrical force of attraction and repulsion