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Alex
4 years ago
9

The herd of cattle is

Chemistry
2 answers:
Sonja [21]4 years ago
8 0
Is there a multiple choice option?
lbvjy [14]4 years ago
7 0
The herd of cattle is cows. Cows are cattle and a herd is a group of them.
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I JUST NEED A REAL ANSWER PLEASE.
ElenaW [278]

Explanation:

hope the picture above help u understand:)

8 0
3 years ago
A 275-mL flask contains pure helium at a pressure of 752 torr. A second flask with a volume of 475 mL contains pure argon at a p
hichkok12 [17]

Answer:

  • Partial pressure He = 276 torr
  • Partial pressure Ar = 457 torr
  • Total pressure = 733 torr

Explanation:

Assuming temperature remains constant, we can use Boyle's law to solve this problem: P₁V₁=P₂V₂.

Once the two flasks are connected and the stopock opened, the total volume is:

  • 275 + 475 = 750 mL

Now we use Boyle's law <em>twice</em>, to <u>calculate the new pressure of </u><em><u>each</u></em><u> gas</u>:

  • He ⇒ 752 torr * 275 mL = P₂He * 750 mL

P₂He = 276 torr

  • Ar ⇒ 722 torr * 475 mL = P₂Ar * 750 mL

P₂Ar = 457 torr

Finally we <u>calculate the total pressure</u>, adding the partial pressures:

  • Total pressure = P₂He + P₂Ar = 733 torr
4 0
3 years ago
12) A 17.92 g sample of copper was submerged in water, and the volume reading rose by 2.00 mL. What is the density of the copper
emmasim [6.3K]

Hey there!:

Mass = 17.92 g

Volume = 2.00 mL

Density =  ??

Therefore:

D = m / V

D = 17.92 / 2.00

D = 8.96 g/mL

Hope this helps!

3 0
3 years ago
Which describes how a turbine works to produce energy for electricity?
masya89 [10]
A. The wind power moves the turbine which, in turn, produces electricity.
6 0
3 years ago
What is the gram formula mass of NazC03
kotykmax [81]

Answer:

84,007 g/mol

Explanation:

Molar mass of NazCO3 which is Sodium Bicarbonate (NaHCO₃) is 84,007 g/mol

7 0
3 years ago
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