CHEMISTRY HIGH SCHOOL

What is the dog's momentum

Answers

Answer 1
Answer: momentum for a dog is food pursuit all natural dog food kines-is premium dog food..  
Answer 2
Answer:

Answer:

112 kg•m/s east

Explanation:

AYE PECKS

Related Questions

The model below represents a nuclear reaction. Atom 1 is present before the reaction and Atom 2 and Atom 3 are produced after the reaction.Atom 1 = Atom 2 + Atom 3 + energy The model most likely represents a reaction which Select one: a. takes place when atoms combine b. takes place when atoms become inactive c. does not produce energy in the sun d. does not produce energy in nuclear power plants
How do three states of matter arise?
What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl?
If the following elements were to combine with each other, choose which demonstrate the Law of Multiple Proportion. Select all that apply. Z:X = 7:1 A:Z = 2.5:1 A:Z = 2.2:1 Y:X = 11:1
in a molecule of methane, carbon (having four valence electrons) binds to four hydrogen atoms. how many lone pairs of electrons will be represented in the lewis structure of methane? a. four b. two c. one d. zero

15) Circle one and tell whya. CH3COOH is a n) (acid, base, salt)b. NH4Cl is a(n) (acid, base, salt)c. KOH is a(n) (acid, base, salt)d. H3PO4 is a(n) (acid, base, salt)e. CaBr2 is a(n) (acid, base, salt)

Answers

The answers to the given questions are:

a. CH3COOH = acid
b. NH4Cl = salt
c. KOH = base
d. H3PO4 = acid
e. CaBr2 = salt

Reasons:

a. This compound is also known as acetic acid, the acid found in vinegar. It can be observed that the compound has a hydrogen ion which makes the compound acidic.

b. Ammonium chloride is a salt because it is the product of an acid (hydrochloric acid, HCl) and base (ammonium hydroxide, NH4OH)

c. Potassium hydroxide is a base because of the presence of OH ion

d. Phosphoric acid is a base because it has 3 hydrogen ions that contributes to its acidity

Answer:

C) CH3COOH Is the answer you are looking for

Explanation:

This one makes the most sense and the other ones don't fit in with the acids they aren't Acidic those are either bases or neutrals! :)

Hope this helps! :)

What kind of glass is the following Si, O, Na, B, Al no plastic, no visible change, will shatters to high impact? 1. Pyrex Glass 2. Laminated soda-lime glass, 3. Ordinary Soda-Lime Glass, 4. Heat-tempered soda-lime glass?

Answers

The kind of glass that is Si, O, Na, B, Al no plastic, no visible change, that will shatter to high impact is 1. Pyrex glass. 

Answer:

1.

Explanation:

Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature. Keep the reactants in separate containers.

Answers

Answer:


According to collision theory, to preventing a dangerous reaction from occurring, the best is to keep reactants in separate containers (last statement).


Justification:


Collison theory states that the the reactant substances (atoms, ions or molecules) must first collide to react and form the products.

Additionally, to form the products, the collisions must meet two requirements:

  • the reactant substances must collide with the correct orientation, and
  • the reactant substances must collide with energy enough to form the activated complex (transition state).

Hence, the collision theory permits youpreventing a dangerous reaction from occurring, by using the elemental knowledge that the substances must first collide in order to they react, and so the most effective way is to keep the reactants in separate contaners, preventing the reactants from coming into direct contact.

Answer: Option (d) is the correct answer.

Explanation:

According to collision theory, the particles should colloid frequently and they should be placed in proper orientation.

Whereas sometimes even at low temperature, reactant particles have enough energy. As a result, they tend to colloid or react with each other. Hence, it leads to a chemical reaction which might be dangerous.

Therefore, it is suitable to keep the reactant particles in separate containers so that a chemical reaction cannot take place.

So, we can conclude that the statement keep the reactants in separate containers best applies collision theory to preventing a dangerous reaction from occurring.

Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas form aqueous glucose and oxygen gas. Calculate the molecules of water needed to produce ___ of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

Answers

Photosynthesis is the process in which green plants and some other organisms that makes use of the energy from the sun, converts carbon dioxide and water into glucose (a sugar) and oxygen.

Equation

6 CO2 + 6 H2O → C6H12O6 + 6 O2

The number of moles of oxygen that can be obtained from 25g of water is

= 25g/ 6( (2*1)+(16) )= 25/108

= 0.23mol

Therefore 0.23moles of water yields 0.23 moles of oxygen

How to know that something is a basic oxide or acedic oxides?
plz help ​

Answers

Explanation:

General Rules. In general, the electropositive character of the oxide's central atom will determne whether the oxide will be acidic or basic. The more electropositive the central atom the more basic the oxide. The more electronegative the central atom, the more acidic the oxide.

Which best represents the reaction of calcium and zinc carbonate (znco3) to form calcium carbonate (caco3) and zinc?

Answers

The reaction of calcium and zinc carbonate yields calcium carbonate and zinc. To balance, we should remember that the number of atoms of each element in the reactants and products side should be equal. The balanced chemical reaction is written as follows:

Ca + ZnCO3 = CaCO3 + Zn

Answer : The balanced chemical reaction will be,

Ca+ZnCO_3\rightarrow CaCO_3+Zn

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

If the amount of atoms of each type on the left and right sides of a reaction differs then to balance the equation by adding coefficient in the front of the elements or molecule or compound in the chemical equation.

The coefficient tell us about that how many molecules or atoms present in the chemical equation.

As per question, when calcium react with zinc carbonate then it react to give calcium carbonate and zinc as a product.

The balanced chemical reaction will be,

Ca+ZnCO_3\rightarrow CaCO_3+Zn

This reaction is a single replacementreaction in which the most reactive elements displaces the least reactive element from its solution.
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List inconsistency of Dalton's atomic theory
How does the human eye see objects?A. Light absorbed by objects, enters the eyes, and is refracted by the optic nerve in the retina. B. Light reflects off objects, enters the eyes, and is detected by the optic nerve in the retina. C. Light refracts off objects, enters the eyes, and is captured as a photograph by the lenses. D. Light reflects off objects, enters the eyes, and is detected by light-sensitive cells in the retina.
Ricardo wants to determine the length of a strip of zinc metal. What is the SI unit for length? foot inch liter meter