The best example of heat transfer by convection is when
A. sunlight warms soil.
B. a ceiling fan blows air.
C. flames heat up a pan.
D. heat rises in a chimney.

Answers

Answer 1
I think it is A im sorry if I get it wrong

Related Questions

i nees help plzzz.

this is a science question ​

Answers

This photo shows us a waxing crescent moon phase?

Need urgent help!!!!

What are some examples of high-sodium processed foods?
What role does the sodium-potassium ratio (Na/K) play in good health?
What foods are naturally high in potassium (K)?
Sodium chloride is just one of many possible salts. What are salts? How does asalt form? (Hint: An acid and a base are involved, and a salt is neutral in pH.)
Potassium chloride has the chemical formula KCl. It is a salt that is used as a substitute for NaCl in order to reduce sodium intake. Both salts are composed of metal and halogen ions. Would you expect potassium to have properties similar to those of sodium? Why or why not?
Compare and contrast NaCl and KCl as food additives. For example, how do they taste and how good are they for cooking?

Answers

Answer:

HERE IS UOUR ANSWER MATE.............

➡️High-Sodium Foods are :-

1) Smoked, cured, salted or canned meat, fish or poultry including bacon, cold cuts, ham, frankfurters, sausage, sardines, caviar and anchovies.

2) Frozen breaded meats and dinners, such as burritos and pizza.

3) Canned entrees, such as ravioli, spam and chili.

4) Salted nuts.

5) Beans canned with salt added.

➡️ Reducing sodium and increasing potassium in your diet can help control hypertension and lower your risk of cardiovascular disease and death. Lowering blood pressure reduces the risk of heart disease and stroke.

➡️Many fresh fruits and vegetables are rich in potassium:

1 . Bananas

2 . oranges

3 . Cantaloupe

4 . Honeydew

5 . Apricots

6 . Grapefruit

(some dried fruits, such as prunes, raisins, and dates, are also high in potassium)

7 . Cooked spinach.

8 . Cooked broccoli.

9 . Potatoes.

10 . Sweet potatoes.

11 . Mushrooms.

12 . Peas.

13 . Cucumbers.

➡️ A salt is a chemical compound consisting of an ionic assembly of cations and anions. Salts are composed of related numbers of cations and anions so that the product is electrically neutral.

Salt ( for chemistry) is a substance produced by the reaction of an acid with a base. A salt consists of the positive ion (cation) of a base and the negative ion (anion) of an acid.

➡️Most of the salt in food, as well as the salt in a shaker, is sodium chloride. Sodium chloride isan ionic compound with the chemical formula NaCl. Processed foods contain a lot of salt and therefore a lot of sodium (Na). As a result, many people consume too much of this alkali Earth metal.

High-sodium diets have been linked to high blood pressure. High blood pressure, in turn, increases the risk of stroke, heart attack, and kidney failure. Reducing sodium intake may help prevent these health problems.

HOPE IT HELPED YOU .......................

THIS QUESTION WAS TOOOO LONG.....

Explanation:

MARK ME AS BRAINLIST..........................

What is the type of reaction for the following: C3H8 + O2

Answers

Answer:

combustion reaction

Explanation:

because we have a carbon based compound reaction with oxygen gas to produce carbon dioxide and water.

F2S3 what is the name of it PLEASE, is it Fluorine (III) Sulfur?

Answers

Answer:

Iron(3+) sulfide

Explanation:

The amount of dissolved salt in water is know as

Answers

Answer:

The water is solvent and the salt is solute

Answer: Salinity is the measure of dissolved salts in water.

Hope this helps! ^^

2. Convert 1500 milligrams to grams.​

Answers

Answer: 1.5 grams.

Explanation:

Which of the following is the correct structure of 2-methyl-3-heptene
a. CH3-CH2-C(CH3)=CH-CH2-CH2-CH3
b. CH3-CH2CH=CH-CH2CH(CH3)-CH3
c. CH3-CH2-CH=CH-CH-(CH3)-CH2-CH3
d. CH3-CCH(CH3)-CH=CH-CH2CH2-CH3​

Answers

Answer:

answer d

Explanation:

methy group is in the second position while the double bond is in the third position

D .............................

What type of severe weather is characterized by a lack of precipitation over a long period of time?

Answers

Answer:

Explanation:

A form of severe weather is drought, which is a prolonged period of persistently dry weather (that is, absence of precipitation).This can cause wild fires which impact the growth of trees.They cause the tree the release carbon dioixide rather than store!

What is wrong with the electron configuration below?
1s2 2s2 2p5 3s2 3p6 4s1

Answers

Answer:

the 2p5 should have filled up one more so it would be 2p6 ...which assuming it's not an excited electron?

Does solubility have any unit? Answer properly​

Answers

Answer:

Water solubility is a measure of the amount of chemical substance that can dissolve in water at a specific temperature. The unit of solubility is generally in mg/L (milligrams per liter) or ppm (parts per million). You can often find it in the section 9 of a safety data sheet (SDS).

Explanation:

In one or two sentences, make and justify a claim about the frequency of a wave if the wavelength increases and the velocity stays the same.

Answers

Answer:

The relationship between the frequency of a wave and the wavelength is an inverse relationship, therefore, if the wavelength of a wave increases and the velocity of the wave stays the same, the frequency of the wave decreases.

An example is the ocean wave, if the distance between successive wave crests, which is the wavelength, 'λ', of the wave, increases, while the velocity, 'v', of the wave coming to shore remains the same, the number of wave crest arriving at the beach in a given period of time, which is the frequency of the wave, 'f',  decreases according to the following equation;

f = v/λ

Explanation:

The frequency and wavelength have inverse relationship. With increase in wavelength there has been a decrease in frequency when speed has been kept constant.

Wavelength has been defined as the distance traveled by the wave in a unit time, while frequency has been defined as the rate of the repetition of the wave in unit time.

The relationship between the wavelength and frequency has been given by;

Wavelength = [tex]\rm \dfrac{speed}{frequency}[/tex]

Since the speed has been constant, there has been an inverse relationship between the frequency and wavelength. Thereby with increase in wavelength there has been a decrease in frequency and vice versa.

For more information about wavelength and frequency, refer to the link;

https://brainly.com/question/8037854

wwwwwwwwwwwwwwwwwwwwwwwwwwwww
additional information when you click on them. Drag and drop each item into the correct column. Order does not matter.
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Semimetal
Left side of PT
Dull and brittle
Good Conductor
Good Insulator
High density
High luster
Low melting point
Noble Gas
Oxygen, Nitrogen, Neon
Right side of PT
Semiconductor
Silicon, Germanium, Arsenic
Sodium, Magnesium, Iron
Scientific
Calc
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Metalloids
Nonmetals
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Is this an actual question?

PLEASE HELP!! I'LL MARK U BRAINIEST!! ALSO PLZ IF YOU CAN SHOW THE WORK

Answers

Answer:

9.63×10²⁴ particles of H₂O

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

From the balanced equation above,

1 mole of CH₄ reacted to produce 2 moles of H₂O.

Next, we shall determine the number of mole of H₂O produced by the reaction of 8 moles of CH₄. This can be obtained as follow:

From the balanced equation above,

1 mole of CH₄ reacted to produce 2 moles of H₂O.

Therefore, 8 moles of CH₄ will react to produce = 8 × 2 = 16 moles of H₂O.

Thus, 16 moles of H₂O were obtained from the reaction.

Finally, we shall determine the number of particles of H₂O produced. This can be obtained as follow:

Number of mole of H₂O produced = 16 moles

Number of particles produced =?

From Avogadro's hypothesis,

1 mole = 6.02×10²³ particles

Therefore,

16 mole = 16 mole × 6.02×10²³ particles / 1 mole

16 moles = 9.63×10²⁴ particles

Therefore, 9.63×10²⁴ particles of H₂O were produced.

What happens to the stable atoms as the rocks get older?

A. increases
B. decreases
C. stay the same

Answers

Answer:

A

Explanation:

PLEASE HELPPPPP I WILL GIVE BRAINLEST FOR WHOEVER FINDS THE ANSWER!!!
As stated in the article, “As Sticky as a Gecko . . . but Ten Times Stronger!,” the adhesive the researchers developed sticks best when it is pulled down parallel to the surface. What type of adhesion is this called?

nano adhesion

perpendicular adhesion

shear adhesion

weak adhesion

Answers

I think that it is shear adhesion

Answer:

sheer adhesion

Explanation:

edge 2021

Which of these elements could be formed at the anode when a molten salt is electrolysed?
A
copper
B
iodine
C
lithium
D
strontium

Answers

Answer: A-Copper.

Explanation:

Copper is the element that could be formed at the anode when a molten salt is electrolyzed due it's variable oxidation state.

What is an element?

An element is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.

Learn more about element,here:

https://brainly.com/question/14347616

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What is an example of a physical change that happens inside your body?

Answers

some examples are
you’re weight
hair growth
how tall you get over the years
hope this helped ! c:

If 4.59 g of potassium reacts with 3.6 g of sulfur according to the following reaction, how many grams of potassium sulfide can theoretically be produced? Please identify the limiting and excess reactants: 2K + S -> K^2S

Answers

First convert the amount of grams you have of each substance to moles. Find your limiting reactant by calculating how many grams are needed to complete this reaction. If done correctly, you would see that we need .226 moles of Potassium to complete this reaction. However, we only have .118 moles of Potassium, so K must be our limiting reactant. Then use the moles of K to find out how many moles of K^2S are made. Then convert the amount of moles of K^2S to grams and you should get 10.3 g K^2S

1) balance the equation Zn +
HCI → ZnCl2 + Hz

Answers

Explanation:

Zn + 2 HCI → ZnCl2 + H2

Hope it will help :)

What is the total amount of heat needed to change 2250 g of silver at 200.0°C to 0.0°C? The specific heat of silver is 0.129 J/g∙°C

Answers

Answer:

The total amount of heat needed to change 2250 grams of silver at 200 ºC to 0ºC is 5805 J.

Explanation:

The melting point of silver is 961.8 ºC, meaning that heat released is entirely sensible. Therefore, the amount of heat released by the sample of silver ([tex]Q[/tex]), measured in joules, is determined by the following formula:

[tex]Q = m\cdot c\cdot (T_{f}-T_{o})[/tex] (1)

Where:

[tex]m[/tex] - Mass, measured in kilograms.

[tex]c[/tex] - Specific heat of silver, measured in joules per grams-degrees Celsius.

[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Initial and final temperatures, measured in degrees Celsius.

If we know that [tex]m = 0.225\,kg[/tex], [tex]c = 129\,\frac{J}{kg\cdot^{\circ}C}[/tex], [tex]T_{o} = 200\,^{\circ}C[/tex] and [tex]T_{f} = 0\,^{\circ}C[/tex], then the heat received by the sample of silver is:

[tex]Q = (0.225\,kg)\cdot \left(129\,\frac{J}{kg\cdot ^{\circ}C} \right)\cdot (0\,^{\circ}C - 200\,^{\circ}C)[/tex]

[tex]Q = -5805\,J[/tex]

The total amount of heat needed to change 2250 grams of silver at 200 ºC to 0ºC is 5805 J.

Answer:11.25g

Explanation:

If you have 0.750 moles of N2 how many liters do you have?​

Answers

Answer:

By definition [Avogadro Law]

1 mole of ANY gas occupies 22.4L at STP

so 0.75 mole N2 occupies 22.4 x 0.75 = 16.8L at STP

Explanation:

How mariy molecules of water are in a 500.3 g sample?

Answers

Answer:

1.67×10^25 molecules

Explanation:

No of molecules = no of moles × Avogadros number

No of moles= mass in gram / molar mass

No of moles of water in given sample = 500.3/18

= 27.79 moles

No of molecules = 27.79× 6.02×10^ 23

= 167.32×10^23 or 1.67×10^25

Is there a reaction between o2 and potassium iodide? If there is, please write it​

Answers

Answer:

Explanation:

Potassium iodide reacts with oxygen in presence of water to produce potassium hydroxide and potassium diiodoiodate(I) .

5KI + 2H₂O + O₂ =4 KOH + I₂ + K(II₂) .

Why does barium have a larger atomic radius than beryllium!

Answers

Answer:

I think that it is related to the orbitals and the electron pairs in each atom.

try reading about "Vsepr" theory

Write a chemical formula for this molecule.

Answers

Answer:

It is H2CO

Explanation:

Is 2 H​2​ + 2 NO ​→​2 H​2O​ + N​2 balanced?

Answers

Answer:

Yes

Explanation:

Which of these make up the mass of an atom?

Answers

protons and neutrons is the answer i think
It is protons I’m pretty sure I don’t think it would be neutrons

light travels faster than sons. true or false? ​

Answers

Answer:

true

Explanation:

light travels faster than sound.

Guys please answer this

Fe2O3+3C —>2Fe +3CO

If we took 8 moles of carbon how many grams(mass) it would be??

Answers

Answer:

Mass = 96 g

Explanation:

Given data:

Number of moles of C = 8 mol

Mass of C in gram = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of C = 12 g/mol

8 mol = mass / 12 g/mol

Mass = 8 mol × 12 g/mol

Mass = 96 g

differences between nuclear reaction and chemical reaction​

Answers

Answer:

nuclear involved

a change in an atom's nunclues usually producing a different elements.

Chemical reaction

on the other hand, involved only a rearrangedment of electrons and do not involve change in the nuclie

Explanation:

Hope it helps kindly follow me

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