CHEMISTRY HIGH SCHOOL

Your teacher placed a drop of food coloring in a cup of water. the color slowly mixed into the water without being stirred. what does this tell you about water molecules?

Answers

Answer 1
Answer:

Answer:

water molicules have space between them thus letting the food colour spread without stiring the water.

Related Questions

In a coffee-cup calorimeter, 100.0 ml of 1.0 m naoh and 100.0 ml of 1.0 m hcl are mixed. both solutions were originally at 24.68c. after the reaction, the final temperature is 31.38c. assuming that all the solutions have a density of 1.0 g/cm3 and a specific heat capacity of 4.18 j/8c ? g, calculate the enthalpy change for the neutralization of hcl by naoh
Elements can be described by their properties. Some of these properties are physical properties and some are chemical properties Observe the list provided. Which one of these contains ONLY Cchemical properties A) C,E,F B) B,C,E C) B, E, FD) C,D,E​
Ight I just here’s my first one
Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42−. Separate the ions with a comma only—spaces are not allowed.
Which of these subatomic particles adds the most mass to an atom?a. proton b. photon c. electron d. It depends on what the element is. An atom with two protons, three neutrons and two electrons would have a mass of about how many atomic mass units? a. 2 b. 3 c. 5 d. 7

A substance has a mass of 10 grams and a volume of 5mL. What is its density?

Answers

Answer:

The answer is

2.0 g/mL

Explanation:

The density of a substance can be found by using the formula

density = (mass)/(volume)

From the question

mass = 10 g

volume = 5 mL

The density of the substance is

density = (10)/(5)

We have the final answer as

2.0 g/mL

Hope this helps you

Write a short note on the causes and effects of global warming and acid rain.

Answers

Answer:

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

Acid rain affects nearly everything. Plants, soil, trees, buildings and even statues can be transformed by the precipitation.

Which of the following is NOT a produce of the neutralization reaction between hydrochloric acid and sodium carbonate?A. Sodium chloride
B. Carbon dioxide
C. Water
D. Sodium hydroxide

Answers

Answer: D. Sodium hydroxide

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

Neutralization reaction is a type of double displacement reaction where an acid reacts with base to produce salt and water.

HCl+Na_2CO_3\rightarrow NaCl+H_2O+CO_2

Thus on reacting hydrochloric acid and sodium carbonate we get sodium chloride, water and carbon dioxide as products.
Hope this helps, have a nice day ahead!

23 Which term identifies the half-reaction that occurs at the anode of an operating electro­chemical cell?(1) oxidation (3) neutralization
(2) reduction (4) transmutation

Answers

Answer: The correct answer is Option 1.

Explanation:

Electrochemical cell is defined as the device that is used for the conversion of the chemical energy produced in a redox reaction into the electrical energy. In this cell, oxidation reaction occurs at anode and reduction reaction occurs at cathode.

For the given options:

Option 1: Oxidation reaction

Oxidation reaction is defined as the chemical reaction where a substance looses its electrons. The oxidation state of this substance gets increased and the substance gets oxidized.

X\rightarrow X^(n+)+ne^-

Option 2: Reduction reaction

Reduction reaction is defined as the chemical reaction where a substance gains electrons. The oxidation state of this substance gets reduced and the substance gets reduced.

X^(n+)+ne^-\rightarrow X

Option 3: Neutralization reaction

Neutralization reaction is defined as the chemical reaction where an acid reacts with a base to produce a salt and water molecule.

HX+BOH\rightarrow BX+H_2O

Option 4: Transmutation

This is defined as the process in which a nucleus is converted to another nucleus.

From the above information, at anode, oxidation reaction occurs. Thus, the correct answer is option 1.

What do atoms form when they bond chemically?a. atom
b. mixture
c. solution
d. molecules

Answers

They form molecules which can be in solution form if diluted in water, but some do form solutions on exposure to the atmosphere i.e they are deliquescent like pellets of sodium hydroxide

A diatomic gas has the molar mass of 38.00g/mol. What is the possible formula?

Answers

The answer would be F₂. This is because you have 2 fluorine atoms. so you divide the 38g/mol by 2 atoms which gets you 19 g/mol per atom. Now all you have to do is find the atom with the molar mass of 19g/mol which is fluorine.

 I hope this helps :)
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Put these events in order.= Your phone contacts a base station in a cell.= Once connected, a duplex system allows you to talk to the other person at the same time.= You dial a number on your cell phone.The MTSO then connects you to the other device.= A base station contacts the Mobile Telephone Switching Office (MTSO).
Which statement describes a major drawback of the Bohr model that caused scientists to replace it?a) It worked only for helium and larger atoms. b) It did not identify the distance between an electron and the nucleus. c) It contradicted the Heisenberg uncertainty principle. d) It stated that spectral lines of atoms are similar.
How many moles of silver chloride are produced from 15.0 mol of silver nitrate?
The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/g°C. How many grams of propane must be burned to raise the temperature of a 10.0 kg block of copper from 25.0°C to 65.0°C, assuming none of the heat is lost to the surroundings?