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grandymaker [24]
2 years ago
8

To make a 450g solution with a mass by mass concentration of 7%, how much salt and water do you need to mix?

Chemistry
2 answers:
finlep [7]2 years ago
5 0

Answer:

salt: 31. 5g

water: 418. 5g

Explanation:

Tasya [4]2 years ago
3 0

Answer:salt: 31. 5g

water: 418. 5g

Explanation

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ICl has a higher boiling point than Br2. What is the best explanation for this?
Flura [38]
<span>The best answer is B. ICl experiences induced dipole-induced dipole interactions. Both iodine and chlorine belongs to the same group of the periodic table. Electronegativity decreases as you go down a group therefore Cl will have a greater attraction with the bond it forms with another atom. Dipole-dipole interactions form between I and Cl. For the Br2 molecule, no dipole occurs because they are two identical atoms. Therefore we will be expecting ICl will have a higher boiling point due to higher binding energy it forms.</span>
7 0
3 years ago
Describe in your own words, in terms of particle movement and energy, what occurs when a liquid is heated to its boiling point.
tino4ka555 [31]
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5 0
3 years ago
The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen. Assuming the combustion of 1 mole
Nookie1986 [14]

Answer:

19.8 kg of C₂H₂ is needed

Explanation:

We solve this by a rule of three:

If 1251 kJ of heat are relased in the combustion of 1 mol of acetylene

95.5×10⁴ kJ of heat may be released by the combustion of

(95.5×10⁴ kJ . 1) /1251kJ = 763.4 moles of C₂H₂

Let's convert the moles to mass → 763.4 mol . 26 g/1 mol = 19848 g

If we convert the mass from g to kg →  19848 g . 1kg / 1000g = 19.8 kg

7 0
2 years ago
Read 2 more answers
Which of the following is an example of erosion?
Drupady [299]

Answer:

Glaciers moving rocks and soil through a valley

Explanation:

The definition of Erosion is "the process of eroding or being eroded by wind, water, or other natural agents". Which in turn means the movement of glaciers is causing erosion on the local valley.

6 0
3 years ago
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The main purpose of _____ is to distribute blood throughout the body
erastovalidia [21]

Answer:

Cardiovascular system

also known as the The circulatory system,

Explanation:

please mark branliest if this helped and rate

4 0
2 years ago
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