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amm1812
3 years ago
11

Why are marine mammals so important

Chemistry
2 answers:
sergejj [24]3 years ago
5 0
Because they help regulate the marine environment.
Nina [5.8K]3 years ago
4 0

what he said.....................srry need points

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A gas is collected at 25.0 °C and 755.0 mm Hg. When the temperature is
Mashcka [7]

Answer:

691.7 mmHg is the resulting pressure

Explanation:

Tha Gay-Lussac's law states that the pressure of a gas is directly proportional to its absolute temperature under constant volume. The equation is:

P1T2 = P2T1

<em>Where P is pressure and T asbolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

Computing the values of the problem:

T1 = 273 + 25 = 298K

P1 = 755.0mmHg

T2 = 273 + 0 = 273K

P2 = ?

755.0mmHg*273K = P2*298K

<h3>691.7 mmHg is the resulting pressure</h3>
7 0
2 years ago
What is the molar mass of Sr(OH)2
Anna71 [15]

Answer:

121.63 g/mol

Explanation:

Sr(OH) 2 = Strontium Hydroxide

5 0
3 years ago
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I really need help who ever has the time and skills plzzz help me
Volgvan
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7 0
3 years ago
A 25 kg rock is placed in a graduated cylinder with water.the volume of the fluid is 18.3ml.calculate the density of the rock in
ipn [44]

Answer:

=> 1366.120 g/mL.

Explanation:

To determine the formula to use in solving such a problem, you have to consider what you have been given.

We have;

mass (m)     = 25 Kg

Volume (v) = 18.3 mL.

From our question, we are to determine the density (rho) of the rock.

The formula:

p = \frac{m}{v}

First let's convert 25 Kg to g;

1 Kg    = 1000 g

25 Kg = ?

= \frac{25 × 1000}{1}

= 25000 g

Substitute the values into the formula:

p =  \frac{25000 g}{18.3 ml}

= 1366.120 g/mL.

Therefore, the density (rho) of the rock is  1366.120 g/mL.

8 0
2 years ago
Which skin layer holds layers together
lions [1.4K]
The <span>epithelial hold the skin together.</span>
6 0
3 years ago
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