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ohaa [14]
3 years ago
8

Help me please, i would really appreciate it

Chemistry
2 answers:
elixir [45]3 years ago
7 0

Answer:

C. Physical Chemestry (Behaviour of Atoms)

____ [38]3 years ago
4 0

Answer:

analytic chemistry

Explanation:

Analytical chemistry uses tests to discover ingredients in a substance. A pool worker tests the water to learn how much chlorine it contains. A nutritionist analyzes food to learn about the nutrients in it. Biochemistry is the study of chemistry in the body.

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Can somebody plz google these!!! it’s not very complicated, I just can’t find it.
almond37 [142]

black peppered moths have higher survival rate

Explanation:

i believe black peppered moths would survive at a higer rate than white moths. black peppered moths could blend with the environment while white moths would stick out and make its self more vulnerable to predators.

4 0
3 years ago
Read the scenario, then answer the questions. A 2 kg ball is thrown upward with a velocity of 15 m/s. What is the kinetic energy
HACTEHA [7]

Answer:

<h2>225 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 2 \times  {15}^{2}  \\  = 1 \times 225 \\  = 225 \:  \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>225 J</h3>

Hope this helps you

3 0
3 years ago
Read 2 more answers
How do you experience homeostasis everyday
Sindrei [870]

Answer:

Homeostasis is the quality of a living being to control its inside conditions. A model is the body directing its inside temperature by shuddering or perspiring. The body controls the measures of acids and bases in the blood.

Explanation:

3 0
3 years ago
When the pressure that a gas exerts on a sealed container changes from 893 mm hg to 778 mm hg, the temperature changes from 49.3
solong [7]

Answer: The final temperature of the gas is 7.58 °C.

Explanation: We are given initial and final pressure of the system and we need to find the final temperature of the system.

To calculate it, we use the equation given by Gay-Lussac.

His law states that pressure is directly related to the temperature of the gas.

P\propto T

Or,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1 = initial pressure = 893 mmHg = 1.175atm (Conversion factor: 1atm = 760mmHg)

T_1 = initial temperature = 49.3°C = [49.3 + 273.15]K = 322.45K

P_2 = Final pressure = 778mmHg = 1.023atm

T_ = Final temperature = ?°C

Putting values in above equation, we get:

\frac{1.175atm}{322.45K}=\frac{1.023atm}{T_2}\\\\T_2=280.73K

Converting Final temperature from kelvin to degree Celsius.

T_2=280.73K=[280.73-273.15]^oC=7.58^oC

Hence, the final temperature of the gas is 7.58 °C.

5 0
3 years ago
Read 2 more answers
What compounds break up into ions solution? ​
Korolek [52]

Answer:

Acids are compounds that dissociate (break) into hydrogen (H+) ions and another compound when placed in an aqueous solution.

Explanation:

5 0
3 years ago
Read 2 more answers
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