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zhuklara [117]
3 years ago
10

What is the purpose of cell wall

Chemistry
2 answers:
xeze [42]3 years ago
8 0

Answer:

The purpose of a cell wall is to keep everything inside safe.

Kamila [148]3 years ago
8 0

Answer:

The CORRECT answer is C. it supports and protects the cell

Explanation:

I just did a assignment and yes this is correct think about it it is called the cell WALL. hope this helps :)

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When 1.14 g of octane (molar mass = 114 g/mol) reacts with excess oxygen in a constant volume calorimeter, the temperature of th
maxonik [38]
I can't answer this question without knowing what the specific heat capacity of the calorimeter is. Luckily, I found a similar problem from another website which is shown in the attached picture. 

Q = nCpΔT
Q = (1.14 g)(1 mol/114 g)(6.97 kJ/kmol·°C)(10°C)(1000 mol/1 kmol)
<em>Q = +6970 kJ</em>

8 0
3 years ago
The possible products of a double displacement reaction in aqueous solution are SrS4, and NaCl. Which of these possible products
Maru [420]

Answer:

A. SrSO4

Explanation:

it is insoluble in water therefore it is the precipitate formed in the reaction

3 0
3 years ago
A certain kind of light has a wavelength of 4.6 micrometers what is the frequency of this light and gigahertz? Use c= 2.998 × 10
Leno4ka [110]

Answer:

6.52×10⁴ GHz

Explanation:

From the question given above, the following data were obtained:

Wavelength (λ) = 4.6 μm

Velocity of light (v) = 2.998×10⁸ m/s

Frequency (f) =?

Next we shall convert 4.6 μm to metre (m). This can be obtained as follow:

1 μm = 1×10¯⁶ m

Therefore,

4.6 μm = 4.6 μm × 1×10¯⁶ m / 1 μm

4.6 μm = 4.6×10¯⁶ m

Next, we shall determine frequency of the light. This can be obtained as follow:

Wavelength (λ) = 4.6×10¯⁶ m

Velocity of light (v) = 2.998×10⁸ m/s

Frequency (f) =?

v = λf

2.998×10⁸ = 4.6×10¯⁶ × f

Divide both side by 4.6×10¯⁶

f = 2.998×10⁸ / 4.6×10¯⁶

f = 6.52×10¹³ Hz

Finally, we shall convert 6.52×10¹³ Hz to gigahertz. This can be obtained as follow:

1 Hz = 1×10¯⁹ GHz

Therefore,

6.52×10¹³ Hz = 6.52×10¹³ Hz × 1×10¯⁹ GHz / 1Hz

6.52×10¹³ Hz = 6.52×10⁴ GHz

Thus, the frequency of the light is 6.52×10⁴ GHz

5 0
3 years ago
The Ksp for CaF2 is 3.9 x 10-11 at 25oC. What is the solubility?
nevsk [136]

We have to know the solubility of CaF₂.

The solubility of CaF₂ is: (c) 2.1 x 10-4 Molar

The general expression of solubility product of any sparingly soluble salt (having solubility S) with formula A_{x} B_{y} is: x^{x} y^{y} S^{x+y}.

For the compound, CaF₂, x=1, y=2 So, K_{sp}=1^{1}2^{2}S^{1+2}=4S³= 3.9 x 10-11  (Given)

S³=\frac{3.9 X 10^{-11} }{4}

S³=9.75  X 10^{-12}

S= 2.1 X 10^{-4} Molar

5 0
4 years ago
Read 2 more answers
How much water needs to be added to 27.00 millilters of 1.500 M LiOH solution to make a 0.02000 M LiOH solution?
bulgar [2K]

Answer:

3000000000000009000000

4 0
3 years ago
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