1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna71 [15]
3 years ago
10

You make a salt water solution by dissolving salt in water. In order to separate the salt back out of the solution, what should

you do? A. It cannot be separated. B. Separate it with evaporation. C. Separate it with a filter. D. Separate it with a Buchner funnel.
Chemistry
2 answers:
lozanna [386]3 years ago
7 0
B - as it’s the fastest and most practical
lana66690 [7]3 years ago
4 0
B. Separate it with evaporation
You might be interested in
Assuming ideal solution behavior, what is the freezing point of a solution of 9.04 g of I2 in 75.5 g of benzene?
cluponka [151]

Answer:

3.1°C

Explanation:

Using freezing point depression expression:

ΔT = Kf×m×i

<em>Where ΔT is change in freezing point, Kf is freezing point depression constant (5.12°c×m⁻¹), m is molality of the solution and i is Van't Hoff factor constant (1 For I₂ because doesn't dissociate in benzene).</em>

Molality of 9.04g I₂ (Molar mass: 253.8g/mol) in 75.5g of benzene (0.0755kg) is:

9.04g ₓ (1mol / 253.8g) = 0.0356mol I₂ / 0.0755kg = 0.472m

Replacing in freezing point depression formula:

ΔT = 5.12°cm⁻¹×0.472m×1

ΔT = 2.4°C

As freezing point of benzene is 5.5°C, the new freezing point of the solution is:

5.5°C - 2.4°C =

<h3>3.1°C</h3>

<em />

3 0
2 years ago
A buildup of charges in an object is called
8_murik_8 [283]

Answer:

Static Electricity.

Explanation:

Static electricity is defined as 'an electric charge that has built up on an insulated body, often due to friction.' <u> It is an outcome of the disparity among the positive, as well as, negative charges residing in a body</u> or object and causes the charge to build up on the surface of the body. The accumulation of electric charges on the objects like wool, hair, silk, plastic, etc. causes them to possess static electricity. These charges stay on the surface until it is discharged or released through a source. Thus, <u>'static electricity</u>' is the correct answer.

5 0
2 years ago
What is the molarity of a solution in which 58g of nacl are dissolved in 1.0 l of solution
Lady_Fox [76]

Hey there :

Molar mass of NaCl = 58.44 g/mol

Number of moles :

n = mass of solute / molar mass

n = 58 / 58.44

n = 0.9924 moles of NaCl

Volume = 1.0 L

Therefore:

Molarity = number of moles / volume ( L )

Molarity = 0.9924 / 1.0

Molarity = 0.9924 M

Hope that helps!

7 0
2 years ago
A 0.8kg object displaces 500ml of water what is its specific gravity
worty [1.4K]

Specific gravity is the ratio of density of substance and density of water

We know that density of water = 1 g /mL at standard conditions

now as given that the 0.8 Kg of the substance / object is able to displace 500mL of water , it means that

Mass of object = 800g

The volume occupied by 800g of object = 500 mL

Density = mass / volume

Density of object = 800 / 500= 1.6 g / mL

The specific gravity of object = density of object  / density of water = 1.6 / 1 = 1.6 (no units)

3 0
2 years ago
2. Answer this question: Lava rocks I nature come in different shapes and sizes. What processes do you think are responsible the
GuDViN [60]

Answer: im not sure im only in 8th grade but im pretty sure  Erosion i started learning about this last year i really cant explain it... im still hainving trouble with it.

Explanation:

4 0
3 years ago
Other questions:
  • How many grams of aluminum oxide would form if 15.2 moles of aluminum burned
    7·1 answer
  • Which type of equilibrium exists in a sealed flask containing Br2(ℓ) and Br2(g) at 298 K and 1.0 atm?(1) static phase equilibriu
    14·1 answer
  • How could you keep an objects acceleration the same if the force acting on the object were doubled
    11·1 answer
  • g In animal tissues the rate of conversion of pyruvate to acetyl-CoA is regulated by the ratio of phosphorylated and dephosphory
    5·1 answer
  • Why should knives be washed separately from other dishes?
    7·2 answers
  • 19.The Alkali and Alkaline Earth metals belong to which columns, respectively?
    7·1 answer
  • How many things do controlled experiments attempt to test at one time? 0 1 3 2
    14·2 answers
  • Think about the equation for kinetic energy, KE - mv?. Given that an increase in temperature increases kinetic
    8·1 answer
  • Can anybody help??
    6·1 answer
  • The Young's modulus values for iron and lead are 210 GPa and 16 GPa, respectively. Based on the information, which statement is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!