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valina [46]
4 years ago
8

Who asks scientific questions

Chemistry
2 answers:
Paladinen [302]4 years ago
6 0

Answer: The correct answer is Anyone who observes the physical world

Explanation: Scientist aren’t the only people who can ask scientific questions, everyone can!

nekit [7.7K]4 years ago
3 0
Scientists or researchers
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how many moles of zinc cholride are produced from the reaction of three moles of xinc and an excess of hydrocholric acid
Leno4ka [110]
The answer is 3 moles  as per given balanced equation one mole Zn produces 1mole Hydrogen
when reacted with excess acid.
<span>So 3 moles Zn will give 3moles Hydroge</span> 
4 0
3 years ago
Hey can u answer this pls
Dmitry_Shevchenko [17]
The answer to your question is DNA!!!!! :)
5 0
3 years ago
Read 2 more answers
How much energy in joules does it take to raise the temperature of 1.5kg of aluminum from 20c to 40c
Leviafan [203]

Answer:

Q = m * c * ΔΤ

ΔΤ = 40-20 = 20

Q = 1.5kg * 0.9 * 20

Q = 27j

4 0
3 years ago
Which of the following is a homogeneous mixture?A) Molten ironB) Stainless steelC) Trail mixD) Water
ehidna [41]

Answer:

B) Stainless steel

Explanation:

Homogeneous mixture  -

It refers to the composition of various substance , which leads to a mixture of complete uniform composition , i.e. , the ratio of each and every component of the mixture is constant all over the mixture , is referred to as a homogeneous mixture.

For example ,

In the solution of sugar and water , where 1 tablespoon of sugar is dissolved in 100 mL of water ,

The ratio of sugar and water remains constant all over the mixture.

Hence, from the given options the homogeneous mixture is B) Stainless steel .

5 0
3 years ago
Calculate the wavelength of the photon emitted when an electron makes a transition from n=6 to n=3. You can make use of the foll
Angelina_Jolie [31]

<u>Answer:</u> The wavelength of light is 1.094\times 10^{-6}m

<u>Explanation:</u>

To calculate the wavelength of light, we use Rydberg's Equation:

\frac{1}{\lambda}=R_H\left(\frac{1}{n_f^2}-\frac{1}{n_i^2} \right )

Where,

\lambda = Wavelength of radiation

R_H = Rydberg's Constant  = 1.097\times 10^7m^{-1}

n_f = Final energy level = 3

n_i = Initial energy level = 6

Putting the values in above equation, we get:

\frac{1}{\lambda }=1.097\times 10^7m^{-1}\left(\frac{1}{3^2}-\frac{1}{6^2} \right )\\\\\lambda =\frac{1}{914617m^{-1}}=1.094\times 10^{-6}m

Hence, the wavelength of light is 1.094\times 10^{-6}m

6 0
4 years ago
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