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
Advocard [28]
3 years ago
14

ANSWER ASAP! PLEASE!

Chemistry
1 answer:
Eva8 [605]3 years ago
4 0
Evaporation and straining.and idk the other two

You might be interested in
2. 1.5 moles of AgNO3 reacts with 0.5 mole of Mg3P2. Calculate the moles of excess
kicyunya [14]

Answer:

No of Moles in excess at the end of the reaction  is 0.25 moles

Explanation:

AgNO3  +   Mg3P2  → Ag3P + Mg(NO3)2

Balancing the equation we get

6AgNO3  +   Mg3P2  → 2Ag3P + 3Mg(NO3)2

6 moles of AgNO3 needs 1 mole of Mg3P2

using unitary method

AgNO3 = \frac{1}{6}*Mg3P2

1.5 AgNO3 = \frac{1}{6}*1.5

                  = 1/4 = 0.25moles of Mg3P2

So 1.5 Moles of AgNO3 requires 0.25Mg3P2 for complete reaction but we have 0.5Moles of Mg3P2 available Therefore Mg3P2 is in excess

No of Moles in excess at the end of the reaction = 0.5 - 0.25 = 0.25moles

5 0
3 years ago
When mechanical energy is transformed,
Dafna1 [17]

Answer:

kinetic energy remains unchanged

6 0
3 years ago
How many mL of 2M stock solution would I use to prepare 0.500 L of 0.1 M NaCl?
nordsb [41]

Answer:

25 mL

Explanation:

Step 1: Given data

  • Concentration of the concentrated solution (C₁): 2 M
  • Volume of the concentrated solution (V₁): ?
  • Concentration of the diluted solution (C₂): 0.1 M
  • Volume of the diluted solution (V₂): 0.500 L

Step 2: Calculate the volume of the concentrated NaCl solution

We will use the dilution rule.

C₁ × V₁ = C₂ × V₂

V₁ = C₂ × V₂ / C₁

V₁ = 0.1 M × 0.500 L / 2 M

V₁ = 0.025 L = 25 mL

4 0
3 years ago
How does increasing and decreasing the temperature affect the kinetic energy of molecules? How does this impact heat
coldgirl [10]

Answer: As the temperature of a molecular system increases, the kinetic energy of molecules also increase. Also as the temperature of a molecular system decreases, the kinetic energy of the molecules will also decrease.

Explanation:

James Clerk Maxwell developed the kinetic-molecular theory (KMT) of gases. In this theoey, five assumptions concerning an ideal gas was made. One of the them was that," the average kinetic energy of the gas molecules is proportional to the temperature of the gas". This simply means that a s the temperature of a molecular system increases, the kinetic energy of molecules also increase. Also as the temperature of a molecular system decreases, the kinetic energy of the molecules will also decrease.

Also another scientist known as Rudolf Clausius incorporated energy into the kinetic theory. He proposed that heat is a form of energy that affects the temperature of matter by changing the motion of molecules in matter.

Heat is defined as the flow of energy which is caused by difference in temperature.

In conclusion, when the temperature of a system is increased, the collision of the molecules with one another and the walls of their container increases as more molecules gain more heat energy at higher temperature. While as the temperature of the system decreases, the collision of the molecules will also decrease as molecules lose heat energy at lower temperature.

3 0
3 years ago
If the pressure of a 2. 00 L sample of gas is 50. 0 kPa, what pressure does the gas exert if its volume is decreased to 20. 0 mL
N76 [4]

The equation used for the calculation is P subscript 1 V subscript 1 equals P subscript 2 V subscript 2. Thus, option B is correct.

The pressure of the gas with respect to volume is given with inverse proportion. The ideal gas equation is given as:

PV=nRT

<h3>Equation for relation between volume and pressure</h3>

The initial pressure of the gas has been given as, P_1=50\;\rm kPa

The initial volume of the gas has been, V_1=2\;\rm L

The final volume of the gas has been, V_2=0.02\;\rm L

The final pressure of the gas, P_2 is given as:

P_1V_1=P_2V_2\\\\P_2=\dfrac{P_1V_1}{V_2}

Thus, the equation used for the calculation is P subscript 1 V subscript 1 equals P subscript 2 V subscript 2. Thus, option B is correct.

Learn more about ideal gas, here:

brainly.com/question/8711877

3 0
3 years ago
Other questions:
  • Bromination occurs on alkene functional groups, but NOT on alkenes found within aromatic functional group, such as the phenyl ri
    15·1 answer
  • In an experiment, six people are different places around the earth drop an apple at the same time. Which apple will fall to the
    13·1 answer
  • a ________ amino acid is likely to be found on the surface of a protein molecule, where it can link to other molecules.
    13·1 answer
  • Find the number of moles of water that can be formed if you have 230 mol of hydrogen gas and 110 mol of oxygen gas
    14·1 answer
  • How many electrons are in an atom of elemental sodium?
    8·2 answers
  • The photographs show comb jellies and an anglerfish in a benthic ecosystem
    10·1 answer
  • How many moles of H2O2 are needed to react with 1.07 moles of N2H4?
    14·1 answer
  • Any two uses of mixtures​
    6·1 answer
  • What is the physical state of the products in MgCl2(aq)+2Na(s) -&gt; 2NaCl(aq)+Mg(s)
    7·2 answers
  • Please answer and explain
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!