Suppose you fill a grass with ice cubes. When the ice cubes melt, is the glass still full?

A change in the internal energy of a system at constant pressure from a chemical reaction will result in an identical change in

xenn [34]

Answer:

1

Explanation:

6 0

2 years ago

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A sample of nitrogen gas has a mass of 48.6 grams. How many N2 molecules are there in the sample? molecules Submit Answer &

marysya [2.9K]

Answer:

There are 1.05 x 10²⁴ molecules in 48.6 g N₂

Explanation:

1 mol of N₂ has a mass of (14 g * 2) 28 g.

Then, 48.6 g of N₂ will be equal to (48.6 g *(1 mol/ 28 g)) 1.74 mol.

Since there are 6.022 x 10²³ molecules in 1 mol N₂, there will be

(1.74 mol *( 6.022 x 10²³ / 1 mol)) 1.05 x 10²⁴ molecules in 1.74 mol N₂ (or 48. 6 g N₂).

6 0

3 years ago

The lowest value of the henry's law for methane gas (ch4) will be obtained with __________ as the solvent and a temperature of _

NikAS [45]

The lowest value of the henry's law for methane gas (CH₄) will be obtained with H₂O as the solvent and a temperature of 349 K.

Henry's law: This law states that at a constant temperature, the amount of a gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas that in equilibrium with that liquid.

Mathematically it can be written as:

$C_{g}=k\times P_{g}$

So, for the methane gas , lowest value of the henry's law obtained at 349 K and with H₂O as the solvent.

3 0

3 years ago

Chemistry is defined as:

attashe74 [19]

Answer:

Eeeeeeeeeeee

Explanation:

mark me as a brainlist

3 0

3 years ago

Which of the following elements will form a positive ions? check all that apply

tamaranim1 [39]

we're the rest of the question

3 0

3 years ago