Large cities often have a visible haze hanging in the air high above them. What most likely causes this haze? a. many women's aerosol hairsprays

Answers

Answer 1

Answer: Haze is caused by particulate matter from incomplete combustion of car, truck, bus, burning of gasoline and diesel. This could also be caused by the buning of wood, coal, and heating oils from industry, electical generation plants that do not collect some of the pollutants at the smoke stack or exhaust points.

Related Questions

Which part of the body contains enzymes that break down protein? A. Skin B. Brain C. Stomach D. Teeth
A(n) ____________ is a substance in which all the exact combinations of elements are always the same.a.synthetic element b.compound c.mixtures d.solution
Given the formula representing a compound: what is a chemical name of this compound? 2-pentene 2-pentyne 3-pentene 3-pentyne
What is the mass of an aluminum cylinder that has a volume of 1.50m3
What was concluded about the structure of the atom as the result of the gold foil experiment?(1) A positively charged nucleus is surrounded by positively charged particles. (2) A positively charged nucleus is surrounded by mostly empty space. (3) A negatively charged nucleus is surrounded by positively charged particles. (4) A negatively charged nucleus is surrounded by mostly empty space.

Which of the following is not equal to 0.536 kilometers? 53.6 hectometers (hm) 536 meters (m) 536,000 millimeters (mm) 53,600 centimeters (cm)

Answers

Answer:

53.6 hectometers

Explanation:

In this case, we have to write out of given options which is not equivalent to 0.536 kilometers.

1 kilometers = 1000 m

So, 0.536 kilometers = 536 meters

1 kilometers = 1000000 millimeters

So, 0.536 kilometers = 536000 millimeters

1 kilometers = 100000 centimeters

0.536 kilometers = 53600 centimeters

And 1 kilometers = 10 hectometers

So, 0.536 kilometers = 5.36 hectometers

Hence, the correct option is (a) " 53.6 hectometers "

I believe it would be 53.6 hectometers, but I'm not 100% sure

What is the frequency of an event?Group of answer choices

Probability

Degree

Expected occurrence

Identification

Answers

Answer:

Probability

Explanation:

Final answer:

The frequency of an event is a measure of how often the event occurs within a given time period.

Explanation:

The frequency of an eventrefers to how often the event occurs within a given time period. It is a measure of the rate at which the event happens. Frequency can be calculated by dividing the number of times the event occurs by the total time period. Probability, on the other hand, is a measure of the likelihood of an event happening.

For example, if a student attends class 4 days a week, the frequency of attending class is 4/7 or 0.57. Probability, on the other hand, refers to the likelihood of an event occurring. It is a measure of the chances of the event happening. Probability is expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means the event will definitely happen.

Learn more about Frequency of an event here:

brainly.com/question/32260616

#SPJ6

50 POINTS Match each item with the correct statement below:

1.) The fact that matter can be neither created nor destroyed in a chemical change.
2.) Substance that changes to a gas easily at room temperature.
3.) Any chemical reaction that absorbs energy.
4.) Can be observed only when there is a change in composition of a substance.
5.) Any chemical reaction that gives off energy.
6.) The amount of matter contained in a unit of volume.
7.) The type of change in which the identity of substances does not change.
8.) The change of one or more substances into other substances.
9.) Can be observed without any change in the identity of the substance.
10.) Another term for chemical change.

chemical property
physical change
physical property
chemical change
density
law of conservation of mass
chemical reaction
volatile
endothermic
exothermic
energy

Answers

Answer:

1) law of conservation of mass

2) volatile

3) endothermic

4) chemical property

5) exothermic

6) density

7) physical change

8) chemical change

9) physical property

10) chemical reaction

What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 MNaOH? Ka = 1.8×10−4 for formic acid.

Answers

Explanation:

Below is an attachment containing the solution

Answer:

pH= 0.369

Explanation:

The formic acid reacts with NaOH as

HCOOH + NaOH= HCOONa + H2O

Apply CaVa/ CbVb = Na/Nb

Ca×25/(29.8×0.3587) = 1/1

Ca= (29.8×0.3587)/25= 0.428M

pH = - log(H+)

Since only 0ne H+ is in the stoichiometric equation, it means H+ = 0.428M

pH = -log(0.428) =0.369

A student adds a tablespoon of sugar to a glass containing tea and ice cubes. The mixture is then stirred until all the sugar dissolves. Which observation is a clue that the student's final mixture is heterogeneous
A. Some ice cubes are floating in the tea
B. The sugar crystals are no longer visible in the tea
C. The mixture looks the same throughout
D. Some water droplets form on the outside of the glass
The subject is science

Answers

Answer:

The correct option is;

A. Some ice cubes are floating in the tea

Explanation:

A heterogenous mixture is one that is made up of more than one clearly identifiable phase of matter (such as solid and liquid, liquid and gas, gas and solid, or solid, liquid and gas combined) and therefore having non-uniform composition, which varies from one section to another within the mixture.

Ice cubes which are solids being observable on the surface of the mixture provides clue that the student has made an heterogenous mixture.

Which is a characteristic of mixtures? They are chemically bonded together. They can be classified as pure substances. They have fixed ratios between their components. They can be separated by physical processes.

Answers

the answer is d i just took the quiz

The statement "They can be separated by physical processes" is a characteristic of mixtures (option D)

What are mixtures?

Mixtures are physical combinations of two or more substances. The components of a mixture are not chemically bonded together, and they can be separated by physical processes such as filtration, distillation, and evaporation.

Pure substances, on the other hand, are made up of only one type of atom or molecule. They cannot be separated by physical processes.

Therefore, the correct answer is They can be separated by physical processes (option D)

Learn about mixtures here brainly.com/question/2331419

#SPJ6

Other Questions

Please help! Multiple choice question! Which of the following gradients allow oxygen to leave the blood and enter body tissues and carbon dioxide to leave body tissues and enter the blood? A. High concentration of oxygen in the blood; high concentration of carbon dioxide in the body tissues B. Low concentration of oxygen in the blood; high concentration of carbon dioxide in the body tissues C. High concentration of oxygen in the blood; low concentration of carbon dioxide in the body tissues D. Low concentration of oxygen in the blood; low concentration of carbon dioxide in the body tissues

A balloon filled with helium rises when youlet it go. A balloon filled with carbon dioxidesinks. Explain the difference.

If the system 2CO(g)+O2(g) 2CO2(g) has come to equilibrium and then more CO(g) is added,

In which of these situations is convection most likely the main form of heat transfer?Warm air from a heater on the first floor of a house moves to the upper floors. The sides of a metal pan become hot when the pan is placed on a stove burner. A person gets a sunburn from lying on the beach too long. An ice cube melts when a person holds it in his hand.