name and describe one carrier opportunity for someone interested in taxonomy​

The answer is B - The properties of atoms of the same element can be different. This is not a part of Dalton's atomic theory. According to Dalton's atomic theory, all matter is composed of indivisible atoms, compounds form when atoms combine in whole number ratios, and an atom can neither be created nor destroyed.
Your answer: B - The properties of atoms of the same element can be different.

This statement is not a part of Dalton's atomic theory, as according to his theory, atoms of the same element have the same properties.

to know more about properties intake pls visit:

https://brainly.com/question/14951376

#SPJ11

Answer:

1.A solvent is a liquid in which another substance is dissolved to form a solution. Examples of solvents include water, alcohol, and vinegar.

2.A solute is a substance that is dissolved in a solvent to form a solution. Examples of solutes include salt, sugar, and caffeine.

3.Several factors can influence the solubility of a solute in a solvent, including the nature of the solute and solvent, the temperature, and the pressure.

Explanation:

An ionic formula is effectively an empirical formula. Empirical formulae are the simplest ratio of elements in a compound. An ionic formula is the simplest ratio of ions in an ionic compound.

On the other hand, a molecular formula tells us the exact number of atoms within each molecule. This is why many molecular formulae can be simplified into an empirical formula.

NaCl does not mean one sodium ion and one chloride ion; it means for every sodium ion in the salt, there is also one chloride ion.

MgCl2 means that there are two chloride ions for every magnesium ion in the salt The true numbers would be huge, of course, so we write it as the simplest ratio (the same as an empirical formula).

A water molecule (H2O) is composed of two hydrogen atoms and one oxygen atom that are covalently bonded to each other.

In a covalent bond, atoms share electrons in order to achieve a more stable configuration.

In the case of water, each hydrogen atom shares one of its electrons with the oxygen atom, forming two covalent bonds. Meanwhile, the oxygen atom shares two of its electrons with the hydrogen atoms, forming two additional covalent bonds. In total, a water molecule has four shared pairs of electrons, with two pairs shared between the oxygen and each hydrogen atom.

These covalent bonds give water its unique properties, including its ability to form hydrogen bonds with other water molecules, which contribute to the cohesion, surface tension, and high boiling point of liquid water.

For such more questions on Water molecule

https://brainly.com/question/21426318

#SPJ4

According to the equation for the reaction, if the number of moles of reactants is halved, the number of moles of H₂O (l) produced in the reaction is halved as well.

A titration is a procedure in volumetric analysis in which a given volume of a solution of a known concentration is added to a given volume of a solution of an unknown concentration to determine the unknown concentration.

The moles of the substances that reacted as given in the equation of the reaction are used to determine the unknown concentration.

The equation of the given reaction is given below:

HCl + NaOH ---> NaCl + H₂O

1 mole of HCl reacts with 1 mole of NaOH to form 1 mole of water.

Hence, halving the moles of reactants would halve the mole of water formed.

Learn more about titration at: https://brainly.com/question/15170788

#SPJ1

Answer:

Moving the balls closer together. The distance decreases and force increases.

Answer:

A pH scale is used to measure acidity.

Answer:

How acidic or alkaline a substance is.

Explanation:

1 = Strong acid e.g. Stomach acid

7 = Neutral e.g. Water

14 = Strong alkaline e.g. Sodium hydroxide

In this lab, a hydrometer is used to measure the density of sugar solutions. If the same hydrometer was used to measure the density of alcohol solutions, you would likely observe different readings due to the differences in density between sugar and alcohol solutions.

Here's a step-by-step explanation:

1. A hydrometer works by floating in a liquid and measuring the liquid's density based on the level at which it floats. The higher it floats, the lower the liquid's density, and vice versa.
2. Sugar solutions generally have a higher density than water because sugar molecules are dissolved in the water, increasing the overall mass per unit volume.
3. Alcohol solutions, on the other hand, usually have a lower density than water. This is because alcohol molecules are less dense than water molecules, resulting in a lower overall mass per unit volume when mixed with water.
4. When using the same hydrometer to measure the density of alcohol solutions, it would likely float higher in the alcohol solution compared to the sugar solution, indicating the lower density of the alcohol solution.

In summary, if the same hydrometer was used to measure the density of alcohol solutions, it would provide different readings compared to measuring sugar solutions, reflecting the differences in density between the two types of solutions.

learn more about hydrometer at https://brainly.com/question/31627581

SPJ11

Both sand and potting soil are mixtures because they both contains more than one type of substances. Both are composed of minerals and different substrates.

Mixtures are substance formed by the combination of two or more components. The mixtures can be homogenous or heterogenous. Homogenous mixtures contains only one phase.

Heterogenous mixtures are of components with different phases. Sand is an example of heterogenous mixture. The major component of sand is silicon dioxide. it also contains grains of other minerals.

Potting soil is a mix of soil and minerals used for plantation. It also known as potting compost since it contains wood products, vermiculates, clay etc. Therefore, potting soil is a mixture.

Find more on mixtures:

https://brainly.com/question/24898889

#SPJ2

Explanation:

remember the equation percentage yield = actual/theoretical yield

so 6.26/18.81 X 100 gives u 33.28017012 so to 3 SF ot would be 33.3%

hope this helps:)

The statement, that describes the percent yield is 33.280 g.

The percent yield is the ratio of actual yield to theoretical yield. It is computed by dividing the experimental yield by the theoretical yield and multiplying the result by 100 percent. If the actual and theoretical yields are equal, the percent yield is one hundred percent.

To express the efficiency of a reaction, use the following formula: percent yield

= (actual yield/theoretical yield) x 100

= (6.26 g/ 18.81 g) x 100

= 33.280 g

Hence the correct answer is 33.280 g.

Learn more about percent yield here

https://brainly.in/question/5487028

#SPJ2

Answer:

0.074

Explanation:

The number of mole present in the aluminum foil, given that the foil has a thickness of 1.0 mm is 0.7 mole

We'll begin by obtaining the mass of the aluminum foil. Details below:

Density = mass / volume

Cross multiply

Mass = Density × Volume

Mass of aluminum = 2.702 × 7

Mass of aluminum = 18.914 g

Finally, we shall determine the number of mole present. Details below:

Mole = mass / molar mass

Number of mole of aluminum = 18.914 / 27

Number of mole of aluminum = 0.7 mole

Thus, the number of mole is 0.7 mole

Learn more about mole:

https://brainly.com/question/13314627

#SPJ1

Answer:

9.90

Explanation:

Given [H+] = 1.25 x 10^-10 M, we can calculate the pH using the formula:

pH = -log10([H+])

pH = -log10(1.25 x 10^-10)

Using logarithmic properties:

pH = -log10(1.25) - log10(10^-10)

Since log10(10^-10) is equal to -10:

pH = -log10(1.25) - (-10)

pH = -log10(1.25) + 10

Now, evaluating the logarithm using a calculator:

pH = -0.0969 + 10

pH = 9.9031

Therefore, the pH of the solution with [H+] = 1.25 x 10^-10 M is approximately 9.9031. Rounding it to two decimal places, the pH is approximately 9.90.

Answer: Pollution is removed from the atmosphere (or "sequestered") when it is absorbed by plants as part of the biological carbon cycle.

Hopes This helped:)

Dendrites is the part of the neuron that receives input in the form of chemical stimuli.

Axons provide synaptic signals to dendrites, and the sum of these signals determines whether the neuron will fire an action potential.

Appendages called dendrites are made to receive signals from neighboring cells. They generate projections that are triggered by other neurons and transmit the electrical charge to the cell body, giving them the appearance of a tree-like structure.

Several other neurons send signals to dendrites, which then transmit those signals to the cell body. A neuron will release an action potential, an electrical impulse that stimulates neighboring neurons, if it has been sufficiently activated. These neurons are arranged in vast networks that interact to produce ideas and actions.

To know about neuron

https://brainly.com/question/24217914

#SPJ4

Answer:

True

Explanation:

When H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases (option C)

A French scientist (Chatelier) postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states that If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

According to Chatelier's principle a decrease in concentration of the products will favor the forward (right) reaction.

From the above principle, we can conclude that when H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases.

Thus, the correct answer to the question is option C

Learn more about chemical equilibrium:

https://brainly.com/question/4289021

#SPJ1

Answer:

Magnesium, strontium, and barium are a few of the elements

Explanation:

In a generic phase diagram, it is possible for the liquid to be the most stable phase at:

Temperatures less than the temperature of the triple point.

Pressures less than the pressure of the triple point.

The triple point on a phase diagram represents the conditions (temperature and pressure) at which all three phases (solid, liquid, and gas) can coexist in equilibrium. At temperatures below the temperature of the triple point and pressures below the pressure of the triple point, the liquid phase is the most stable phase and can exist on its own without undergoing a phase change.

On the other hand, temperatures greater than the critical temperature and pressures greater than the critical pressure are in the supercritical region, where the distinction between the liquid and gas phases is no longer meaningful, and the substance exists as a supercritical fluid. In this region, the liquid is not a stable phase and would evaporate or boil if present.

Learn more about pressure here:

https://brainly.com/question/29341536

#SPJ4

The balanced chemical equation is Ba(OH)2(aq) + 2HNO3(aq) → Ba(NO3)2(aq) + 2H2O(l). This means that when barium hydroxide reacts with nitric acid, it produces barium nitrate and water.

To balance the given unbalanced reaction, we need to ensure that the same number of atoms of each element appear on both the reactant and product sides. In this case, we have one barium (Ba) atom, two hydroxide (OH) ions, one nitric acid (HNO3) molecule, and one oxygen (O) molecule on the reactant side. On the product side, we have one barium (Ba) atom, two nitrate (NO3) ions, and two water (H2O) molecules. To balance the equation, we need to add one more nitrate (NO3) ion to the product side. Therefore, the correct set of products is Ba(NO3)2(aq) + 2H2O(l).

To know more about chemical equation visit:

brainly.com/question/28792948

#SPJ11

Heat needed : 159.33 kJ

The heat to change the phase can be formulated :  

Q = mLf (melting/freezing)  

Q = mLv (vaporization/condensation)  

Lf=latent heat of fusion  

Lv=latent heat of vaporization  

The heat needed to raise the temperature

Q = m . c . Δt

The specific heat of ice is 2.09J/g°C; the specific heat of water is 4.182 J/g°C; the heat of fusion is 333.0 J/g.

1. heat to raise temperature from -35 °C to 0 °C  

\(\tt Q=312\times 2.09\times (0-(-35)=22,822.8~J\)

2. phase change(ice to water)

\(\tt Q=312\times 333=103,896~J\)

3. heat to raise temperature from 0 °C to 25 °C  

\(\tt Q=312\times 4.18\times (25-0)=32,604~J\)

Total heat needed :

22,828.8 + 103,896+32,604=159,328.8 J=159.33 kJ

When we have an acid-base reaction, the acid will be that substance that donates protons, in the form of H+ ions. The base will be the one that accepts the H+ ions. Now, the base that accepts the protons becomes a potential proton donor, thus becoming a conjugate acid. This is the case with H3O+.

H2O accepts H+ ions, so it is a base and when it becomes H3O+ it becomes a potential H+ proton donor, that is, a conjugate acid.

so, the answer will be B. Conjugate acid

The balanced equations for the combustion are:

Combustion of B2H6 : B2H6(g) + 3O2(g) → B2O3(s) + 3H2O(g) Combustion of Si4O10 : Si4O10(g) + 13O2(g) → SiO2(s) + 10H2O(g)

A fuel (the reductant) and an oxidant, typically atmospheric oxygen, undergo a high-temperature exothermic redox chemical reaction that results in oxidized, frequently gaseous products and a mixture known as smoke. Since a flame only appears when substances undergoing combustion evaporate, combustion does not always result in fire, but when it does, a flame is a distinctive sign of the event.

Fuel combustion reactions release usable thermal energy as they occur (heat). Most of the cars we drive are powered by combustion reactions, and a large portion of our electricity is produced by them as well.

Learn more about Combustion here: https://brainly.com/question/15117038

#SPJ4

Answer:

Valence Electrons

Explanation:

Answer:

Valence

Explanation:

The outermost shell are the valence electrons

The energy transferred is given as the product of power and time. The 1.4 kW kettle with boiled water produces 378 kJ of energy.

Energy is the quantitative property that determines the work done by the body in the form of heat and light.

The image showing the kettles with time and power is attached below.

Given,

Power of the kettle = 1.4 kW

Time taken = 4.5 minutes

If power = energy ÷ time

Then, energy = power × time

= 1.4 × 0.075

= 0.105 KWh

Therefore, 0.105 kWh or 378KJ is the energy transferred.

Learn more about energy here:

https://brainly.com/question/16948772

#SPJ1