which would best be categorized as heat transfer by conduction?
a.) wearing a white shirt to stay cool on a summer day
b.) warming your body under the sun in summer
c.) feeling the heat from a lightbulb with your hand when touching the bulb
d.) feeling the heat from a light bulb while holding your hand from 6 inches away

Answers

Answer 1

Answer:

c.) feeling the heat from a lightbulb with your hand when touching the bulb

Explanation:

In heat transfer by conduction, feeling the heat from a lightbulb with your hand when touching the bulb will be categorised as the best condition.

Answer 2
c.) feeling the heat from a lightbulb with your hand when touching the bulb

It is C because it is the direct transfer of heat from the lightbulb to your hand

Related Questions

Assume trilobites went extinct 248 million years ago.
If a trilobite is found in a rock layer, what do you
know about the age of that rock layer?

Answers

Answer:

the rock layer is at least 248 million years old

Explore

Which of the following shows a valid combustion reaction?

Answers

Answer:

May be third one because of the formation of H2(hydrogen)on the product side.

The equation that shows the valued combustion reaction is [tex]C_2H_4 + 3O_2 \rightarrow 2CO_2 + 2H_2O[/tex]

The following information should be considered:

For [tex]2Al + 2O_2 \rightarrow 2AlO + O_2[/tex]  it should not Balanced Properly [tex]2Al + O_2 = 2AlO[/tex] For [tex]2CH_4 + O_2 \rightarrow 2CO + 4H_2[/tex]   as CO should be [tex]CO_2[/tex] For [tex]Ca + O_2 \rightarrow CaOH[/tex] it should Not Balanced and No source for the H.

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how would you distinguish a simple microscope from a compound one​

Answers

Answer:

A simple microscope employs a concave mirror. A compound microscope employs a plane mirror at one side and a concave mirror at the other. It contains only one adjustment screw to move the limb up and down for focusing on the object.

Answer:

D po

Explanation:

Sana nakatutulong

#Carry on learning

Pa brainliest po

Can someone answer that first this pls im lost

Answers

-Just look up “H2O lewis structure
-1.5
-Don’t know the VSEPR
-Polar Covalent
-Again, don’t know VSEPR
-Just look up H2O molecule

Why is hydrogen gas superior to hot air for lifting a ballon?

Answers

Being as hydrogen is the lightest element it works most efficiently as lift in our atmosphere which is mostly made of heavier nitrogen.

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chemical equations for sodium sulphate, potassium sulphate, magnesium sulphate, calcium sulphate

Answers

Explanation:

2NaOH + H2SO4 --> Na2SO4 + 2H2O

2KOH + H2SO4 --> K2SO4 + H2O

Mg(OH)2 + H2SO4 --> MgSO4 + 2H2O

Ca(OH)2 + H2SO4 --> CaSO4 + 2H2O

Gold's natural state has a definite shape and a definite volume. What is gold's natural state(s)?
O solid
liquid
ОООО
solid or gas
O liquid or gas

Answers

Answer:

Solid

Explanation:

N2 + O2 → N205
how do i show my work im trying to balance the equation

Answers

Answer:

2N2 + 3O2 –2N2O3 this what I got balancing though

Put the substance in a 25 mL beaker.
Now, observe and record the following:
state of matter:
appearance and texture:
crystalline structure:

Answers

Answer:

liquid no not a solid

Explanation:

When you put the substance in a 25 mL beaker. then the state of matter is solid, appearance and texture are powdered and crystalline structure is not solid(powder).

What are crystalline structures and states of matter?

The term "crystalline structure" refers to the arrangement of atoms, ions, or molecules in a crystalline solid. A crystalline solid is a type of material where the constituent particles are arranged in a regular, repeating pattern. This regular arrangement results in a characteristic geometric shape for the crystals. Examples of crystalline solids include salt, sugar, and diamond.

On the other hand, the term "state of matter" refers to the physical form in which matter exists. There are three primary states of matter: solid, liquid, and gas.

Solids have a definite shape and volume and their constituent particles are held tightly together by strong intermolecular forces.

Liquids have a definite volume but no definite shape, and their constituent particles are held together by weaker intermolecular forces.

Gases have no definite shape or volume, and their constituent particles are far apart and move freely.

Other states of matter, such as plasma and Bose-Einstein condensate, also exist but they are less common in everyday life.

Therefore, the state of matter: is solid, its appearance and texture: are powdered, and the crystalline structure: is not solid.

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Magnesium (24.30) reacts with hydrogen chloride (X g) to produce hydrogen gas (2.04 g) and magnesium chloride (96.90 g). How much hydrogen chloride was used in the reaction?

Round your answer to the second decimal.

Answers

Answer:

Hydrogen Chloride is 74.64 grams.

Explanation:

Using the given information, we can find the amount of grams of hydrogen chloride that take place in the reaction.

24.30 grams of Magnesium"x" grams of Hydrogen chloride2.04 grams hydrogen gas96.90 grams of magnesium chloride.

Due to the Law of Conservation of Mass, the mass of the system must remain constant. To find the value of x, make the equation below.

[tex]24.30 + x=2.04 + 96.90[/tex]

The left side represent the reactant side of the chemical reaction and the right side represents the product side.

[tex]2.04 + 96.90= 98.94[/tex]

[tex]24.30+x=98.94[/tex]

[tex]24.30 - 24.30 + x= 98.94 - 24.30[/tex]

[tex]x=74.64[/tex]

Compare the box on the left containing the reactants in a chemical reactions. Which box on the right is the correctly represents the products according to the Law of Conservation of mass?

A) A.

B) B.

C) C.

D) D. ​

Answers

Answer:

d is the right answer

please mark me brainlist

True or false? Simple molecular substances contain delocalised electrons.

Answers

Answer:false

Explanation:


Astronomers often scan the sky using devices called radio
telescopes. What can you conclude about these devices?

Answers

Answer:

A radio telescope is simply a telescope that is designed to receive radio waves from space.

radio telescopes helps to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system.

Answer: stronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices? ... They pick up the radio waves emitted by stars.

How does melting order relate to melting point?

A. The substance that melted the quickest has the highest melting point.

B. The substance that took the longest to melt has the lowest melting point.

C. The substance that melted third to last has the lowest melting point.

D. The substance that took the longest to melt has the highest melting point.

Answers

Answer:

I think A.

Explanation:I say A because of the substance melting the quicking does have the highest melting point because its the highest.

What causes a change in speed or direction?
A) Balanced Force
B) Net Force
C) Force

Answers

Answer:

force i think

Explanation:

What was the effect of increasing the water's mass?

Answers

-the final temp was lower
-water has a high capacity

what is the ground-state electron configuration of a neutral atom of iron?

Answers

Iron is a transition metal and a transition metal has more than one oxidation state or valency for ex.
Theres Fe2+ or iron(II)
And there’s Fe3+ or iron(III)

what is the main difference between sexual and asexual reproduction

Answers

Answer:

Asexual reproduction does not involve sex cells or fertilisation . Only one parent is required, unlike sexual reproduction which needs two parents. Since there is only one parent, there is no fusion of gametes and no mixing of genetic information.

The main difference between sexual and asexual reproduction is that sexual reproduction involves the fusion of gametes, while asexual reproduction does not.

In sexual reproduction, offspring are produced through the fusion of gametes (reproductive cells) from two parent organisms. This fusion, known as fertilization, results in offspring that inherit genetic material from both parents. This genetic recombination introduces variation in the offspring, promoting genetic diversity within a population.

In contrast, asexual reproduction involves the production of offspring without the involvement of gametes or the fusion of genetic material from two parents. A single parent organism reproduces by generating genetically identical or near-identical offspring through various methods such as budding, fragmentation, or binary fission. Asexual reproduction typically leads to offspring that are genetically identical to the parent, lacking the genetic diversity observed in sexual reproduction.

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If the average speed of a car is 45 km/hr, how far can it travel in 0.5 hours

Answers

Answer:

22.5 Km

Explanation:

45km/hr * 0.5 hr = 22.5km

In Experiment 1, what volume did the propane gas occupy in the Erlenmeyer flask before the addition of any water?

Answers

This question is mentioning an experiment that is not being described about the volume of the propane gas in an Erlenmeyer before the addition of water.

In this case, since no information is given, it is possible to propose a suggested procedure of how to figure it out via gas laws, specifically, the ideal gas one, since no change is decribed before the addition of water:

[tex]PV=nRT[/tex]

Thus, you can solve for the volume, by dividing both sides by the pressure, so that you will get:

[tex]V=\frac{nRT}{P}[/tex]

Now, to ensure a correct calculation, make sure you have the moles (divide by the molar mass of propane, 44,1 g/mol, if you were given the grams), the temperature in K (add 273.15 if you have degree Celsius), the ideas gas constant as 0.08206 and the pressure in atm, in order to have consistent units.

If you need the volume in milliliters, you will need to multiply the previous answer by 1000 in order to perform the appropriate conversion.

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Which of the following are elements? (Select all that apply.)
KCl
Na
C
H2O

Answers

Answer:

Na(Sodium) and C(Carbon) only

Answer:

Na, C

Explanation:

1. KCl, or potassium chloride, is a combination of two elements- so it's a chemical compound.

2. Na, or sodium, can be found on the periodic table of elements. Therefore, it is an element.

3. C, or carbon, can also be found on the periodic table of elements. Therefore, it is an element.

4. H20, or water, is a combination of 2 hydrogen atoms that bonded into an oxygen atom. Combination of 2 or more elements is a chemical compound.

Therefore, the answers are Na and C.

Scientists theorize that the original point of matter from which our universe formed was smaller than a dime. This matter would also have:

a. had unimaginable mass
b. been incredibly dense
c. had unimaginable potential energy
d. all of the above​

Answers

ANSWER:

B. been incredibly dense? I'm not sure sorry

What’s a conjugative Bas of OH-

Answers

Answer:

the answer is O²- hopefully

Which ion has the correct charge?

07-

Na 2+

N 3+

Ca2+

Answers

Answer:

Ca(2+)

Explanation:

Sodium (Na) only have one valence electron and will lose it in order to gain a full octet. There will be an unbalance of electrons and protons where there are more protons there electrons. The correct ion formula for sodium is Na (1+).

Nitrogen has 5 valence electrons and will gain three more to gain a full octet. There will be an unbalance where there are more electrons then protons. Nitrogen will form the ion N (3-).

Calcium has two valence electrons and will lose them in order to gain a full octet. There will be an unbalance where there are more protons then electrons. Calcium will form the ion Ca 2+

Therefore, Ca2+ is the ion with the correct charge.

What is the molarity of a HCl solution, if 28.6 mL of a 0.175 m NaOH solution is needed to neutralize a 25.0 mL sample of the HCl solution

Answers

The molarity of the HCl solution needed to neutralize 28.6 mL of a 0.175 M NaOH solution is 0.2002 M

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

HCl + NaOH —> NaCl + H₂O

From the balanced equation above,

The mole ratio of the acid, HCl (nA) = 1

The mole ratio of the base, NaOH (nB) = 1

From the question given above, the following data were obtained:

Volume of base, NaOH (Vb) = 28.6 mL

Molarity of base, NaOH (Mb) = 0.175 M

Volume of acid, HCl (Va) = 25 mL

Molarity of acid, HCl (Ma) = ?

The molarity of the acid, HCl can be obtained as follow:

MaVa / MbVb = nA / nB

(Ma × 25) / (0.175 × 28.6) = 1

(Ma × 25) / 5.005 = 1

Cross multiply

Ma × 25 = 5.005

Divide both side by 25

Ma = 5.005 / 25

Ma = 0.2002 M

Therefore, the molarity of the acid, HCl needed for the reaction is 0.2002 M

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Please help me with the question below

Answers

the answer is b
pls give brainly i need points

will give 80 points: Use the word bank to fill in the rock cycle steps in the diagram below. You many only use each word 1 time. 2 of the words will not be used at all

Word Bank:
Erosion, Heat and Pressure, Crust, Metamorphic Rock, Magma, Sedimentary Rock, Igneous Rock, Compaction, Melting, Earth

Answers

Filling the rock cycle steps with the world Bank is as follows;

1 = Erosion1 = Erosion2 = Compaction1 = Erosion2 = Compaction3 = Sedimentary rock1 = Erosion2 = Compaction3 = Sedimentary rock4 = Heat and Pressure1 = Erosion2 = Compaction3 = Sedimentary rock4 = Heat and Pressure5 = Metamorphic rock1 = Erosion2 = Compaction3 = Sedimentary rock4 = Heat and Pressure5 = Metamorphic rock6 = Melting1 = Erosion2 = Compaction3 = Sedimentary rock4 = Heat and Pressure5 = Metamorphic rock6 = Melting7 = Magma1 = Erosion2 = Compaction3 = Sedimentary rock4 = Heat and Pressure5 = Metamorphic rock6 = Melting7 = Magma8 = Igneous rock.

Additionally, the conversion of igneous, Sedimentary and metamorphous rock to sediments happens by a process termed Erosion/Weathering.

Also, conversion of magma to igneous rock is by cooling and vice versa is by heating.

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Are bath bombs pure substances or mixtures

Answers

Answer:

Yes.

Explanation:

Bath bombs are usually made from three key ingredients: baking soda, citric acid and cornstarch, said Frankie Wood-Black, an instructor in chemistry at Northern Oklahoma College and an experienced bath-bomb maker. Often, bath bombs also include dyes and perfumes, and sometimes they have epsom salt.

Answer: yes

Explanation:

Identify the location of oxidation in an electrochemical cell.

Answers

Answer:

Anode

Explanation:

Electrochemical cells have two conductive electrodes, called the anode and the cathode. The anode is defined as the electrode where oxidation occurs.

What makes plant green ?

How are the life process in a cell controlled?

What gives plants cells their regular shape ?

Where are the fluids stored in the cell?

What important function does the cell membrane do ?

( can someone help me out please )

Answers

Answer:

Chlorophyll makes plants green.

Enzymes are responsible for dictating what chemical changes happen and when, so thus they control the life process of the cells in our bodies.

The cell wall is what gives a plant cell it's distinct shape (animal cells don't have cell walls btw).

Intracellular fluid, or cytosol, is the fluids stored in the Intracellular compartment.

The cell membrane is the barrier between everything inside the cell, and everything else outside of it. It protects the contents of the cell from harm and releases toxins and other waste from it. The cell membrane is basically like the gate keeper of the cell.

Explanation:

Hope this helps, I tried :)

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