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2 years ago

.. can someone answer these quickly before I go to bed

Chemistry

1 answer:

elixir [45]2 years ago

8 0

Ans

1. d.x-Rays

2. d.modern medical x-rays use stronger radiation than earlier types.

3. b.Radio waves have high frequency

4.a.Gamma radiation

5.b.Infrared radiation

6.a.Radio waves

Explanation:

A mammogram is an X-ray of the breast. Mammograms are commonly used to screen for breast cancer.

Radio-tracking technology assists in determining exactly where an animal is located at any instant in time and frequently what that animal is performing! Utilizing the data collected from tracking devices, scientists can conclude the day-to-day activities of an animal, the size of an animal's place range, what other animals share an animal's range and the types of habitats an animal practices.

Gamma-rays are the common energetic form of light and are generated by the most heated regions of the universe. Gamma rays are provided by such extreme events as supernova explosions or the elimination of atoms and by less exciting events, such as the breakdown of radioactive material in space.

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DedPeter [7]

Answer:

hey :)

your answer is D.

Explanation:

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2 years ago

If parents wanted to pick their child's traits like hair color, gender, eye color, what would doctors have to do?

kap26 [50]

Answer:

Nothing

Explanation:

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2 years ago

A first order reaction has a rate constant of 0.543 at 25 c and 6.47 at 47

alukav5142 [94]

The activation energy Ea can be related to rate constant (k) at temperature (T) through the equation:

ln(k2/k1) = Ea/R[1/T1 - 1/T2]

where :

k1 is the rate constant at temperature T1

k2 is the rate constant at temperature T2

R = gas constant = 8.314 J/K-mol

Given data:

k1 = 0.543 s-1; T1 = 25 C = 25+273 = 298 K

k2 = 6.47 s-1; T = 47 C = 47+273 = 320 K

ln(6.47/0.543) = Ea/8.314 [1/298 - 1/320]

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2 years ago

(4 points) The following lead compound for a pharmaceutical drug contains a rotatable bond. Using the principles of rigidificati

masya89 [10]

Answer:

Explanation:

The solution has been attached

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2 years ago

A sample of nitrogen gas is at a temperature of 50 c and a pressure of 2 atm. If the volume of the sample remains constant and t

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Answer:

The new temperature of the nitrogen gas is 516.8 K or 243.8 C.

Explanation:

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Gay-Lussac's law can be expressed mathematically as follows:

$\frac{P}{T} =k$

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You want to study two different states, an initial state and a final state. You have a gas that is at a pressure P1 and at a temperature T1 at the beginning of the experiment. By varying the temperature to a new value T2, then the pressure will change to P2, and the following will be fulfilled:

$\frac{P1}{T1} =\frac{P2}{T2}$