Find three acids and three bases used in your home.1) what are theses acids and bases used for?
2)look up the chemical name and chemical formula of each acid and base

Answers

Answer 1
Answer: Acids

Acetic acid in vinegar, used in cooking - CH₃COOH
Citric acid in lemons and oranges - C
₆H₈O
Carbonic Acid in soft drinks - H₂CO

Bases

Sodium Hypochlorite is found in bleach - NaClO
Sodium Hydroxide found in drain cleaners - NaOH
Sodium bicarbonate, also known as baking soda which is used in cooking - NaHCO


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Torque can be calculated by multiplying the force (N) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound SI unit for the torque is N⋅m. If the force (at 90∘ to the lever arm) applied is 15 N and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

Answers

If a lever has a constant force applied at 90∘ to the lever arm at a fixed distance from the pivot point (point of rotation), the torque on the lever is given by  Torque = force (at 90∘ to lever arm) × distance to pivot pointForce should be perpendicular to the lever arm
Therefore; you would do 15N X 2.0 m = 30 Nm or 30Joules

Final answer:

The torque on the lever, with a 15 N force applied perpendicular at 2.0 m from the pivot point, is 30 N·m.

Explanation:

The torque on a lever is calculated by the formula T = rF sin θ, where T is torque, r is the distance from the pivot point to the point where the force is applied (lever arm), F is the force applied, and θ is the angle between the lever arm and the direction of the force. In this case, the force is applied at 90° to the lever arm, so the sin θ part of the formula is equal to 1. Therefore, the torque can be calculated by multiplying the force by the lever arm distance. With a force of 15 N applied perpendicular to the lever arm at a distance of 2.0 m from the pivot point, the torque on the lever would be 30 N·m (15 N x 2.0 m).

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A substance is tested in a lab. It is found to maintain a unique shape and is a good conductor of electricity. If it is made up of electrons, protons, and neutrons, what state of matter is this substance most likely to be?

Answers

Answer : Solid

Explanation :

When the substance was tested in the lab it was seen that it maintains a unique shape, which is the differentiating property of solids. Also, they are very good conductors of electricity. Solid contains electrons, protons and neutrons this is a common thing which is found in every state of matter. This all details confirms that it will be solid.

if its made up of electrons, protons, and neurons, the state of matter in this substance is most likely to be : Solid

we know that the substance
- a good conductor (and most of good conductors are metals and almost all the metals are solid)
- Could maintain a unique shape (gas technically does not have a shape and liquid's shape will be determined by the medium surrounding it)

Pls help ASAP I am literally so tired I hate this so much

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a still lake . Is your answer

How many mol of hydrogen in 2.6 mol of caffein

Answers

The chemical formula of caffeine is C8H10N4O2. Caffeine is only a common name but using IUPAC, it is given the nomenclature 1,3,7-Trimethylpurine-2,6-dione. 1 mole caffeine has 10 moles of hydrogen (as shown in the chemical formula) hence, 2.6 moles caffeine has 26 moles of hydrogen. 

How is 0.00025 written in scientific notation

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2.5 × 10⁴ is the scientific notation for 0.00025. this is done by moving decimal to the first non zero number.

When a number is too big or too tiny to be readily stated in decimal form, or if doing so would involve writing down an exceptionally lengthy string of digits, it can be expressed using scientific notation. It is also known as standard form within the UK and scientific form, standard index form, and standard form. Scientists, mathematicians, or engineers frequently utilise this base ten notation because it may make some mathematical operations simpler. 2.5 × 10⁴ is the scientific notation for 0.00025. this is done by moving decimal to the first non zero number.

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Answer:

2.5 * 10^4

Explanation:

When wood is burned, energy is released in the forms of heat and light. Describe the reaction, and explain why this change does not violate the law of conservation of energy. Use the terms combustion, exothermic, and chemical energy.

Answers

Burning wood would be a sort of combustion (spontaneous), which is a biochemical process that occurs involving chemical energies.

  • It's indeed exothermic, which means it generates heat because it happens. Whenever the hardwood is burnt, charcoal decomposes and then becomes responsible for the formation and creates a new particle.
  • Because the carbons aren't generated but just redistributed or shuffled, this doesn't contradict the principle or the concept of conserving energy.

Thus the above approach is appropriate.

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Burning wood is a form of spontaneous combustion, a type of chemical reaction occurring with chemical energy. It is exothermic, meaning it releases heat when it occurs.When wood is burned, carbon breaks down (which creates the crackling sound you hear) and creates a new material. Since the carbons are not being created and only rearranged, this does not violate the law of conservation of energy.