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Slav-nsk [51]
3 years ago
6

Oil is used for political power by some countries. True False

Chemistry
1 answer:
makvit [3.9K]3 years ago
7 0
It’s truuueee

Explaining:
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The<br> is an organ that supplies blood and nutrients to a<br> developing embryo.
statuscvo [17]

The \sf\purple{placenta} is an organ that supplies blood and nutrients to a developing embryo.

Explanation:-

  • The placenta is a large temporary organ that develops in the uterus during pregnancy (in female mammals).
  • Placenta allows for the exchange of materials between the mother's blood and the blood of foetus and also aid in removal of the foetus waste.

\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35}}}}}

8 0
3 years ago
A certain substance, X, has a triple-point temperature of 20°C at a pressure of 2.0 atm.
nikitadnepr [17]

Answer: The statement which could possibly not be true is C -" Liquid X can exist as a stable phase at 25°C, 1atm."

Explanation:

Triple point is the point where a substance co-exist as solid liquid and gas. At any point other than the triple point, the substance exist as a single phase substance.

As shown in the diagram, Liquid cannot exist as a stable phase at 1atm( below the the triple point pressure of 2atm) as the liquid can only exist beyond the pressure of triple point.

3 0
3 years ago
What did the winters find in death valley?
Ganezh [65]
Hold up give me on sec
4 0
3 years ago
Suppose that 3.33 g of acetone at 25.0 °C condenses on the surface of a 44.0-g block of aluminum that is initially at 25 °C. If
jeyben [28]

Answer:

68.6 °C

Explanation:

From conservation of energy, the heat lost by acetone, Q = heat gained by aluminum, Q'

Q = Q'

Q = mL where Q = latent heat of vaporization of acetone, m = mass of acetone = 3.33 g and L = specific latent heat of vaporization of acetone = 518 J/g

Q' = m'c(θ₂ - θ₁) where m' = mass of aluminum = 44.0 g, c = specific heat capacity of aluminum = 0.9 J/g°C, θ₁ = initial temperature of aluminum = 25°C and θ₂ = final temperature of aluminum = unknown

So, mL = m'c(θ₂ - θ₁)

θ₂ - θ₁ = mL/m'c

θ₂ = mL/m'c + θ₁

substituting the values of the variables into the equation, we have

θ₂ = 3.33 g × 518 J/g/(44.0 g × 0.9 J/g°C) + 25 °C

θ₂ = 1724.94 J/(39.6 J/°C) + 25 °C

θ₂ = 43.56 °C + 25 °C

θ₂ = 68.56 °C

θ₂ ≅ 68.6 °C

So, the final temperature (in °C) of the metal block is 68.6 °C.

5 0
3 years ago
What is the ph of a saturated solution of aluminum hydroxide?
sasho [114]
Answer is attached  below ( sorry for mistake )

6 0
4 years ago
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