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insens350 [35]
3 years ago
5

The endocrine system sends hormones through the blood to control the activities of tissues and organs.

Chemistry
2 answers:
ivann1987 [24]3 years ago
7 0
Your answer is true.
zzz [600]3 years ago
7 0
True.   hope that helps you
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All the elements in period 3 have this characteristic
Studentka2010 [4]

Answer:

The answer would be C). All of the elements inside a period will always have the same amount of shells. Hope this helps!

7 0
3 years ago
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I have a balloon that can hold 125,000 mL of air. If I blow up this balloon with 3 moles of oxygen gas at a
matrenka [14]

Answer:

234.35 °C

Explanation:

Given data:

Volume of balloon = 125000 mL

Moles of oxygen = 3 mol

Pressure = 1 atm

Temperature = ?

Solution:

Formula:

PV = nRT

P = Pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature

Volume of balloon = 125000 mL × 1 L /1000 mL

Volume of balloon = 125 L

Now we will put the values:

Ideal gas constant = R = 0.0821 atm.L/mol.K

PV = nRT

T = PV/nR

T = 1 atm × 125 L/  0.0821 atm.L/mol.K × 3 mol

T= 125  /0.2463 /K

T = 507.5 K

K to °C

507.5 K - 273.15 = 234.35 °C

4 0
3 years ago
I really need help with this question please help me.
oksano4ka [1.4K]
I would say A because it’s the only one that doesn’t conduct electricity. Ionic compounds conduct electricity, and covalent compounds do not.
3 0
2 years ago
Which best describes the relationship between Haiti’s political instability and the natural disasters it has faced?
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Explanation:

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What causes the wind? A.The Earths orbit around the sun B.The Earths rotation on its axis C.The layers of the Earths atmosphere
VMariaS [17]

Answer:

Uneaven hearing by the sun

Explanation:

6 0
3 years ago
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