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
liubo4ka [24]
3 years ago
8

Which of the following statements is not true?

Chemistry
1 answer:
sp2606 [1]3 years ago
3 0

Answer:

D

Explanation:

hope this helps

You might be interested in
Which internal system is responsible for transporting oxygen and nutrients through an animal's body?
katen-ka-za [31]

Answer:

B: circulatory system

Explanation:

The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

4 0
3 years ago
Read 2 more answers
If water is added to a 0.70 molar solution of CuSO4 what will change
lana [24]

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.

7 0
3 years ago
6. dissolving ice tea mix in water
Cloud [144]

Answer:

Dissolving ice tea mix in water is a chemical change

Explanation:

It is a chemical change because you can not bring back the ice tea mix back if you mix it in water.

Hope it helps

6 0
3 years ago
Given that the freezing point depression constant for water is 1.86°c kg/mol, calculate the change in freezing point for a 0.907
melamori03 [73]

Answer : The correct answer for change in freezing point = 1.69 ° C

Freezing point depression :

It is defined as depression in freezing point of solvent when volatile or non volatile solute is added .

SO when any solute is added freezing point of solution is less than freezing point of pure solvent . This depression in freezing point is directly proportional to molal concentration of solute .

It can be expressed as :

ΔTf = Freezing point of pure solvent - freezing point of solution = i* kf * m

Where : ΔTf = change in freezing point (°C)

i = Von't Hoff factor

kf =molal freezing point depression constant of solvent.\frac{^0 C}{m}

m = molality of solute (m or \frac{mol}{Kg} )

Given : kf = 1.86 \frac{^0 C*Kg}{mol}

m = 0.907 \frac{mol}{Kg} )

Von't Hoff factor for non volatile solute is always = 1 .Since the sugar is non volatile solute , so i = 1

Plugging value in expression :

ΔTf = 1* 1.86 \frac{^0 C*Kg}{mol} * 0.907\frac{mol}{Kg} )

ΔTf = 1.69 ° C

Hence change in freezing point = 1.69 °C

5 0
3 years ago
Reaction 1
vovangra [49]
Sgshjagajavajsfysbsjavajababhahshs
5 0
3 years ago
Other questions:
  • What is the reading on your balance and that of your partner?what do these values represent?
    7·1 answer
  • Kia is doing an experiment in science lab. She is given a beaker containing 100 g of liquid. The beaker has markings on the side
    5·2 answers
  • When hydrochloric acid reacts with sodium sulfide, hydrogen sulfide gas and sodium chloride are produced. How many moles of H2S
    13·1 answer
  • How many grams of potassium iodide will produce 500 grams of silver iodide, when there is an excess of silver nitrate?Why?
    6·1 answer
  • When 0.491 grams of a protein were dissolved in 44 mL of benzene at 24.4 degrees C, the osmotic pressure was found to be 50.9 to
    10·1 answer
  • Ammonia and oxygen react to form nitrogen and water, like this:
    14·1 answer
  • Which statement best describes how forces are important to chemistry?
    7·1 answer
  • I need help please. The top question.
    13·1 answer
  • When an electron moves from one energy level to another, if the transition is to a _______ energy level, energy is absorbed, and
    12·1 answer
  • Pls help!<br><br> Describe ionic and covalent bonding.<br><br> Give an example of each
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!