# What is meant by the word acid

Answer: an acid typically has a ph. of under 7 and neutralises alkali
Answer: noun1.a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind."rainwater is a very weak acid"2.CHEMISTRYa molecule or other entity that can donate a proton or accept an electron pair in reactions.adjective1.containing acid or having the properties of an acid; in particular, having a pH of less than 7."poor, acid soils"2.sharp-tasting or sour  that from google .

## Related Questions

the energy of a photon is 1,000 calories what is the wavelength of the radiation? ( 1 calorie equals 4.184 joules )

Explanation:

One food Calorie is equal to 1 kilocalorie, that is, 1000 calories. A SI unit of energy is the joule (symbol J), where 1 cal = 4.184 J. The heat produced by chemical reactions is often expressed in kilocalories, as well as in kilojoules (kJ), where 1 kcal = 4.184 kJ.

First, we convert the energy of the photon to Joules. Then, we use the equation for energy of a photon, E=hc/λ, rearranged to solve for λ (wavelength). Substituting the known values into this equation, we can calculate the wavelength of the photon.

### Explanation:

The energy of a photon is given in calories, but in physics, it's usually measured in Joules, so we first need to convert our energy to the appropriate unit. Thus, the energy of the photon is 4184 Joules (1,000 calories x 4.184 Joules/calorie).

The energy of a photon is also related to its wavelength through the equation E=hc/λ, where h is Planck's constant (6.63 x 10^-34 J.s) and c is the speed of light (3.00 x 10^8 m/s). By rearranging the equation, we find λ=hc/E. Substituting the given numbers for Planck's constant, the speed of light, and the energy of the photon, we find that λ = (6.63 x 10^-34 J.s)(3.00 x 10^8 m/s) / 4184 J.

Calculating these values, we will arrive at the wavelength of the radiation emitted by this photon.

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Which processes result in the release of carbon? Select three options.Animals break down food molecules to obtain energy.
The remains of producers are broken down by decomposers.
The remains of consumers are broken down by soil decomposers.
Producers take in carbon dioxide.
Producers make sugars and starches.

The three processes that releasecarbon are as follows:

• Animals break down food molecules to obtain energy.
• The remains of producers are broken down by decomposers.
• The remains of consumers are broken down by soil decomposers.

• Carbon moves back and forth from living organisms to the atmosphere in a process summarized by CARBON CYCLE. In the carbon cycle, carbon is either absorbed or released in series of processes.

WAYS THROUGH WHICH CARBON IS RELEASED:

• Animals break down food molecules to obtain energy in a process called CELLULAR RESPIRATION. Carbon is released into the atmosphere in form of carbon dioxide (CO2).

The remains of producers (plants) are broken down by decomposers (fungi, bacteria etc). Carbon is returned back to the soil this way.

The remains of consumers, when they die, are broken down by soil decomposers (fungi, bacteria).

Animals break down food molecules to obtain energy.

The remains of producers are broken down by decomposers.

The remains of consumers are broken down by soil decomposers.

Explanation:

JUST TOOK THE TEST

What is the study of how matter and energy interact? A. Biology B. Chemistry C. Planetary science D. Physics

D. Physics

Explanation:

First, let's define all the answer choices.

Biology: Biology is the study of life and living things. Biology deals with the function, growth, origin and more of organisms.

Chemistry: Chemistry is the study of matter, elements, atoms, compounds, molecules and more. Chemistry is also concerned with chemical reactions.

Planetary science: Planetary science is basically the study of planets. This is the study of planets, moons and planetary systems.

Physics: Physics is the study of matter, energy, and their interactions. This helps us to explain and understand things that happen in the universe.

The best choice is D. Physics. Physics is the study of how matter and energy interact.

The D. Physics is the study of how matter and energy interact. It helps us understand how things work and why they behave the way they do.

### Explanation:

Physics is a natural science that explores the fundamental principles governing the universe. It studies the behavior of matter, energy, space, and time through the formulation of physical laws and mathematical equations. Physics covers diverse topics, including mechanics, electromagnetism, thermodynamics, relativity, quantum mechanics, and astrophysics, explaining phenomena from the subatomic to cosmic scales.

Thus, it is the study of how matter and energy interact. It is concerned with describing the interactions of energy, matter, space, and time to uncover the fundamental mechanisms that underlie every phenomenon. In simple terms, physics helps us understand how things work and why they behave the way they do.

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What variable can you change in an experiment?

independent variable

Explanation:

independent value =)

Explanation:

Which statement best describes the collisions of gas particles according to the kinetic-molecular theory? A. When particles pass close enough to one another, their attractions pull them together, and then they bounce apart with no gain or loss of energy.

B. As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with no gain or loss of energy.

C. When particles pass close enough to one another, their attractions pull them together, and then they bounce apart with a loss of energy.

D. As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with a loss of energy.

Answer: option B. As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with no gain or loss of energy.

Explanation:

The kinetic-molecular theory explains the the properties and behavior of the gases in terms of the energy, size, and motion of the particles that form the gases.

According to this model, the gas particles are in constant random motion. The particles travel in straight line until they collide either with other particles or with the walls of the vessel. Such collisions are elastic, meaning that energy is not either gain or loss. Therefore, this theory does not consider either attractions or repulsions between the particles. The particles bounce apart and the total kinetic energy is conserved.