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2 years ago

The direct transfer of heat from one substance to another substance that it is touching is called

Chemistry

2 answers:

Oksanka [162]2 years ago

6 0

Thermal energy is the direct transfer of heat from one substance to another

Allushta [10]2 years ago

5 0

The correct answer is conduction because you are conducting the heat through something like a finger etc.

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An adult with the flu has a temperature of 102°F. Express your answer as an integer.

Pie

Answer: A integer is a whole number.

An adult with the flu has a temperature of 102°F

A brain contains neurons (moving the decimal point to the right side power of 10 increases........here decimal point is moved to two places to the right side so power of 10 decreases from 10 to 8)

The time for a nerve impulse to travel from the feet to the brain is s. (moving the decimal point to the right side power of 10 increases........here decimal point is moved to two places to the right side so power of 10 decreases from 0 to -2)

Explanation:

i hope this answer your question if this is wrong or correct please let me know

5 0

2 years ago

What is the concentration of a 1:10 dilution of a 2.5 M solution of NaCl? How would you prepare exactly 100 ml of such a solutio

Marina CMI [18]

Answer: The concentration of the solution is 0.25 M

Explanation:

Let the volume of solution of 2.5 M NaCl be 10 mL

We are given:

Dilution ratio = 1 : 10

So, the solution prepared will have a volume of = $\frac{10}{1}\times 1000=100mL$

To calculate the molarity of the diluted solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the concentrated NaCl solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted NaCl solution

We are given:

$M_1=2.5M\\V_1=10mL\\M_2=?M\\V_2=100mL$

Putting values in above equation, we get:

$2.5\times 10=M_2\times 100\\\\M_2=\frac{2.5\times 10}{100}=0.25M$

Hence, the concentration of the solution is 0.25 M

6 0

3 years ago

In which shell are the valence electrons of the elements in Period 2 found?

defon

B 2
is which shell are the valence electrons of the elements in period 2 found

8 0

2 years ago

Read 2 more answers

The images show two unrelated events occurring at separate times.

trapecia [35]

Event 1 is an example of a chemical reaction.

Explanation:

Whenever if two solutions are mixed, then if there is any color change, or evolution of any vapors, bubbles or gas formation or if there is any formation of a color or white precipitate confirms that the occurrence of a chemical reaction.

If nothing happens said above then it is said that there is no chemical reaction occurs.

Here in the event 1 a clear liquid in one beaker poured into clear liquid in beaker 2 then there is a formation of orange liquid, which means there is a formation of a new colored liquid confirms that the chemical reaction occurred.

4 0

2 years ago

Read 2 more answers

What type of decay characterizes the change of radioactive nuclides to their respective daughter products?

tigry1 [53]

I believe the correct answer is the second option. The type of decay that characterizes the change of nuclides to their respective daughter products would be exponential decay. This type of decay is characterized by the decrease of quantity of a material according to the equation y=ab^x.

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2 years ago