What is the reason you can smell food cooking even when you're not in
the kitchen?
A.
the particles spread from high concentration to low concentration
B.
the particles spread from low concentration to high concentration
C. the particles come together from high concentration to low concentration
D. the particles come together from low concentration to high concentration.

Answers

Answer 1

Answer:

the answer should be A


Related Questions

What is a part's structure related to?

Answers

huh i need you to be more specific

Iron-containing minerals in rocks may combine with water and air to create rust. This is an example of

A. chemical weathering
B. mechanical weathering
C. abrasion
D. exfoliation

Answers

Answer:

A

Explanation:

chemical reaction are those type of reaction that are irreversible and a new substance is being formed therefore when the iron combine with water and air it leads to rusting.

a compound consists of 81.8% C and 18.2% H by mass. What is its empirical formula?​

Answers

Answer:

Empirical formula of 81.8 carbon and 18.2 hydrogen

Steps

Find the empirical formula of a compound that has 81.8% of Carbon (C), 18.2% of Hydrogen (H).Divide by fractional component of each mole value: C=1.5354936431103, H=4.0709872862205Round to closest whole numbers: C=2, H=4 Combine to get the empirical formula: C2H4

What is the mass of 2409793.03 particles of N2?

Answers

ANSWER



ANSWER

EVIDENCE

when 45mL of 0.25mol/L sulfuric acid is mixed w/ 25mL of 0.58mol/L Calcium hydroxide, the solution has a?

Answers

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong. Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

a sample of an unknown metal has a mass of 21.6g and volume of an 8.00cm3 calculate the density of the unknown metal

Answers

Answer:

2.70 g/cm³

Explanation:

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

[tex]density = \frac{mass}{volume} \\[/tex]

From the question we have

[tex]density = \frac{21.6}{8} \\ = 2.7[/tex]

We have the final answer as

2.70 g/cm³

Hope this helps you

What if I’m not really living just surviving

Answers

So it would be 100$ per 5 giftcard
( I do this not to get banned :)

A. When glucose molecules link up what substance do they form?
B. Which nutrient is made from amino acids?

Answers

Answer:

Explanation: b

b is proteins and a is polysaccharides

What happened to your heart rate? What does the increased heart rate tell us about the circulatory system? Why do you think the circulatory system was pumping blood faster when you were running?
Pls help ill give brainliest

Answers

What the person above me said is correct

Why do mammals require lungs? Provide 3 reasons.

Answers

I can only find 2, I hope this helps

-To deliver oxygen to the cells of the body's tissues and remove carbon dioxide.
- The lungs also remove carbon dioxide from the blood. If carbon dioxide built up in a body, death would result.
All life respires, or breathes. Respiration in mammals is similar to respiration in other air-breathing animals. Respiration extracts oxygen from the air, which is then used by cells. Respiration also carries waste carbon dioxide away from the cells. Although respiration depends on other systems, like the circulatory system, to take oxygen and carbon dioxide to and from cells, the respiratory system has the primary responsibility of bringing oxygen in to a mammal's body and sending carbon dioxide into the atmosphere.

Mammalian respiration occurs in the animal’s respiratory system. A respiratory system is made up of muscles and airways that work to bring fresh air into lungs where oxygen is exchanged in blood for carbon dioxide. The airways are often lined with hairs or other structures that help to clean the air of dust and microbes before it enters the lungs.

Mammalian respiratory systems rely on a single large muscle at the base of the lungs. This muscle is called a diaphragm. The diaphragm pulls the lungs downward to increase their volume, causing air to rush into the lungs. As it presses upward, the lungs become smaller, and air is exhaled. Muscles in the rib cage work in consort with the diaphragm to expand and contract the lungs.

Question
WHMIS legislation states that Material Safety Data Sheets:
A)are expired if they are more than 3 years old
B) must be available for workers to review
C)are expired if they are more than 5 years old
D )both a and be
E) both b and c

Answers

Answer: B) must be available for workers to review

Explanation:

WHMIS is a Canadian program which gives information to the employers about the workers knowledge about hazardous materials that are used in the workplace. It is ensured that the worker labelled the hazardous material at the workplace, material safety data sheet should be created to supplement the label, and worker's education program for learning the safety precautions is also conducted.

The material safety data sheets are created by the employers and their is no expiry date for such data for workers instead they receive a next recommended training date for participating in the training and avail another certification after the completion of first year.

DUE VERY VERY VERY SOON
What are the rows of elements called on the periodic table?

Answers

Answer:

"The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups."

Explanation:

I GIVE OUT FREE POINTS

You push 100kg door with force of 200 with what force does the door push back on you

Answers

Answer:

for every action there is equal and oposite reaction so door als pushes us back with same force. ie;200N.

How many grams of potassium phosphate (K3PO4) will be formed if you react 20.16 grams of potassium hydroxide (KOH) with excess phosphoric acid?

3 KOH + H3PO4 → K3PO4 + 3 H2O

_ grams of K3PO4 (round to 3 sig figs)

a) 234
b) 25.4
c) 64.5
d) 58.7

Answers

I think it’s a or b I tried

25.4g of potassium phosphate (K3PO4) are formed.

What is potassium phosphate?

Potassium phosphate is an inorganic salts of potassium and phosphate.

How to convert mole to grams?Calculate the number of moles mentioned in the questionFind the molar mass of the substance.Multiply both the values.

3 KOH + H3PO4 → K3PO4 + 3 H2O

Step 1: Convert from grams to moles using the molar mass.

Step 2: Use the molar ratio to determine moles of other substance.

Step 3: Convert from mole to grams using the molar mass.

Convert grams to moles using the molar mass

25.4g KOH (1 mol KOH/56.098g KOH)

= 0.3593mol KOH

Mass of H3PO4 produced

0.3593 mol KOH ( 1 mol H3PO4/3 mol KOH)

= 0.1197 mol H3PO4

converting mole to grams

0.1197 mol H3PO4 (98g H3PO4/1 mol H3PO4)

= 11.730g H3PO4

Mass of K3PO4 produced

0.3593 mol KOH (1 mol K3PO4/3 mol KOH)

= 0.1197 mol K3PO4

converting mole to grams

0.1197 mol K3PO4 (212.267g K3PO4/1 MOL K3PO4)

= 25.408g K3PO4

Hence, option b is the correct answer.

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Which HTML tag is used to create a heading on a web page? (5 points)

Answers

HTML headings are defined with the <h1> to <h6> tags. <h1> defines the most important heading.

hope this helps ^^

14 steps decay series

Answers

what are u showing tho?

Solve and use correct sig figs AND units: (Example of how to type: 3.26 m2)
The density of mercury is 13.6 g/mL. What is the mass of 3,426 mL of mercury?

Answers

Answer:

m = 46593.6 g

Explanation:

Given data:

Mass of mercury = ?

Volume of mercury = 3426 mL

Density of mercury = 13.6 g/mL

Solution:

Formula:

d = m/v

d = density

m = mass

v = volume

by putting values,

13.6 g/mL = m/ 3426 mL

m =  13.6 g/mL × 3426 mL

m = 46593.6 g

Why do we round numbers?

Answers

Answer:

We round numbers so we can find an answer or an estimate that will be close to the actual answer. Rounding numbers is also another way to get close to an exact answer without the trouble of having to calculate every number.

Answer:

Rounding numbers make the numbers easier and more simple to use . Though they may less accurate because of the changes number . Rounding is mainly used for estimates

I neeeed helpppppppppppp!!!!!!

Answers

Answer:

it is D

Explanation

Electrons are a type of subatomic particle with a negative charge. ... Protons and neutrons have approximately the same mass, but they are both much more massive than electrons (approximately 2,000 times as massive as an electron).

Most of the carbon in the rocks that form Earth's mantle and crust was stored there when Earth formed. The rest of Earth's carbon is stored and exchanged in many ways.In a model of the carbon cycle, which process does NOT contribute directly to the storage of carbon within sediment?

Answers

Answer:

Photosynthesis.

Explanation:

In photosynthesis process, carbondioxide gas enters into plant leaves from which plant produces organic molecules such as glucose. This glucose helps the plant to increase it growth and complete development stages and finally the plant dies and buried in the soil so due to decomposition process, the carbon present in the plant body releases in the soil and become part of sediments. So indirectly photosynthesis process provides carbon to the soil.

Balance the equation C4H8 (g) + ?O2(g) → ? CO2 (g) + ? H2O (g), using the smallest possible integers. What is the coefficient of CO2? ​

Answers

the coefficients should be 1; 6; 4; 4 and the coefficient of CO2 is 4

USE LETTERS FOR ANSWERS, NO NEED TO EXPLAIN
a) Substitute symbols and formulas for words.
b) Predict the products. If no reaction occurs, write “NR” after the --> sign. c) Include abbreviations for the physical state.
d) Write out and balance the equation.

6. Mercury is poured into an aqueous solution of zinc nitrate.

7. Solutions of potassium iodide and lead (II) nitrate are mixed. The resulting lead compound is a precipitate.


thank you! :)

Answers

Answer:

Ok:

Explanation:

6a) [tex]Hg + Zn(NO_3)_2\\[/tex]

b) NR

c) [tex]Hg_{(l)} + Zn(NO_3)_2 {(aq)}=> NR[/tex]

d) Welp, no reaction so i don't know.

7a) [tex]KI + Pb(NO_3)_2[/tex]

b) [tex]PbI_2 + KNO_3[/tex]

c) All are aqeuous except for PbI2 which is solid

d) [tex]2KI _{(aq)}+ Pb(NO_3)_2_{(aq)} => PbI_2_{(s)} + 2KNO_3_{(aq)}[/tex]

Check if that is ok or if my work has any issues :).

what is 1/4 of 12 pleas i need help

Answers

Answer:

3

Explanation:

It's basically saying what number goes into 12 four times, I think.

What is the [H+] if the pH of a
solution is 1.65?

Answers

Answer:

So the concentration of hydrogen in solution of 1.65 pH is 2.2 × 10⁻²

An example of a high explosive is what?

Answers

Answer:

High explosives do not need to be contained to make their bang. Nitroglycerine, trinitrotoluene, and RDX are high explosives.

Explanation:

What is the balanced equation for the manufacture of ethanol from glucose

Answers

Answer:

C6H12O6 → 2C2H5OH + 2CO2

Explanation:

Glucose is an organic molecule, specifically a sugar, with the formula C612O6 while ethanol is another organic molecule with formula; C2H5OH.

However, as rightly said in this question, ethanol can be got from glucose via a process called fermentation in the presence of a catalyst called YEAST. The balanced equation is as follows:

C6H12O6 → 2C2H5OH + 2CO2

Questions
1. How would you describe life and why?​

Answers

boring. To be honest we all die at the end of the day

On any given day or night, what determines the visible phase of the moon

A. how much of the sunlit side of the moon is visible

B. the time of day or night that we look at the moon

C. how far the moon has rotated on its axis

D. how much of the moon is lit by the sun

Answers

Answer:

i think the answer is D if not its A

PLEASE HELP I'M BEING TIMED!! Which type of star system has the most stars?
A. Open Cluster
B. globular cluster
C. Eclipsing binary
D. binary star system ​

Answers

Answer:

Hi! It's B - globular cluster

Answer:

B Globular Cluster

Explanation:

Sorry if I am wrong :)

What is a cation and where can you find it on the periodic table?

What is an anion and where can you find it on the periodic table?

Answers

Answer:

A cation is an ion with fewer electrons than protons. Therefore, it has a positive charge. The electric charge on a proton is equal in amount to the charge on an electron. Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Explanation:

An anion and cation cannot be specifically found on the periodic table.    

The chemical elements are shown in tabular form on the periodic table, sometimes referred to as the periodic table of the elements. It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.

What is an anion?

An ion with fewer electrons than protons is known as a cation. It is hence positively charged. Protons and electrons both have the same amount of electric charge. Atoms or radicals (groups of atoms) that have gained electrons are known as anions. Anions now have a negative charge because they have more electrons than protons.

Alkali metals and alkaline earth metals always produce cations, while halogens always produce anions. Iron, silver, and nickel are among the most common non-metals that create cations, whereas the majority of other metals do the same (e.g. oxygen, carbon, sulphur).

The periodic table does not clearly list an anion or cation.

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