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Sati [7]
3 years ago
6

PLEASE HELP ME ASAP AND DONT GUESSSS!!!!!!!

Chemistry
2 answers:
DENIUS [597]3 years ago
5 0

Answer:

Question ...4 : D

Question...5: B

Explanation:

Hope this helps

Have a nice day

Rama09 [41]3 years ago
3 0

Answer:

Digestive

Explanation:

It is necessary for the body to function so it is technically an organ

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Plz help me thank u will give brainliest
Triss [41]
I believe it is b. you only want to change one thing at a time so you know which one thing caused the effect
7 0
3 years ago
You measure salt water in a tank to have a density of 1.02 g/mL. A balloon weighs 2.0 g and you weights have a mass of 30.0 g ea
Elden [556K]

Weight of the balloon = 2.0 g

Six weights each of mass 30.0 g is added to the balloon.

Total mass of the balloon = 2.0 g + 6*30.0 g = 182 g

Density of salt water = 1.02 g/mL

Calculating the volume from mass and density:

182g*\frac{mL}{1.02g} =178mL

Converting the volume from mL to cubic cm:

178 mL * \frac{1cm^{3} }{1mL} =178cm^{3}

Assuming the balloon to be a sphere,

Volume of the sphere = \frac{4}{3}πr^{3}

178 cm^{3} = \frac{4}{3}(\frac{22}{7})r^{3}

r = 3.49 cm

Radius of the balloon = 3.49 cm

Diameter of the balloon = 2 r = 2*3.49 cm = 6.98cm


4 0
3 years ago
An air bubble with a volume of 5.0 ml is released at the bottom of a lake where the pressure is 3.0 atm. when it reaches the sur
Svetradugi [14.3K]

The new volume of the air bubble that has an initial volume of 5.0 ml released at the bottom of a lake where the pressure is 3.0 atm is 15mL.

<h3>How to calculate volume?</h3>

The volume of a given gas can be calculated by using the following formula:

P1V1 = P2V2

Where;

  • P1 = initial pressure
  • V1 = initial volume
  • P2 = final pressure
  • V2 = final volume

5 × 3 = 1 × V2

15 = V2

V2 = 15mL

Therefore, the new volume of the air bubble that has an initial volume of 5.0 ml released at the bottom of a lake where the pressure is 3.0 atm is 15mL.

Learn more about volume at: brainly.com/question/1578538

7 0
2 years ago
Which geoiogic feature is most likey to from a mid
scZoUnD [109]
What are the answer choices?
8 0
3 years ago
The equilibrium concentrations for the reaction between N2 and O2 to form NO at a certain temperature are given in the table bel
MaRussiya [10]

Answer:

c

Explanation:

c is correct i believe

8 0
2 years ago
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