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
lisabon 2012 [21]
3 years ago
15

Please help me please ​

Chemistry
1 answer:
sweet-ann [11.9K]3 years ago
7 0

Explanation:

1 sugar solution =Distillation

2 Iron powder and sand=magnetic separation

3 petrol and diesel= Fractional distillation

4 Camphor and glass powder = Sublimation

You might be interested in
What is the halflife of a radioisotope if a 20-g sample becomes 10g after 16 hours
ohaa [14]

Answer:

T½ = 16hours

Explanation:

Final mass (N) = 10g

Initial mass (No) = 20g

Time (t) = 16hours

T½ = ?

T½ = In2 / λ

But λ = ?

In(N/No) = -λt

In(10/20) = -(λ * 16)

In(0.5) = -16λ

-0.693 = -16λ

λ = 0.693 / 16

λ = 0.0433

Note : λ is known as the disintegration constant

T½ = In2 / λ

T½ = 0.693 / 0.0433

T½ = 16hours

The half-life of the sample is 16hours

5 0
3 years ago
Use this equation to calculate the specific heat capacity of each metal:
Tom [10]

Answer:

What is the specific heat for the aluminum wire?

0.82

What is the specific heat for the steel wire?

0.47

What is the specific heat for the lead pellets?

0.25

Explanation:

3 0
3 years ago
Read 2 more answers
What is the relationship between the internal energy of a substance and its particle movement?
ss7ja [257]

Answer: The closeness, arrangement and motion of the particles in a substance change when it changes state. Materials are a store of internal energy , due to the motion of particles and the chemical bonds between them. When a substance is heated, its internal energy increases: the movement of its particles increases.

Explanation:

6 0
3 years ago
3 Cu + 8HNO3 g 3 Cu(NO3)2 + 2 NO + 4 H2O
liubo4ka [24]

24.25 moles of NO can be produced using 97 moles of HNO3.

<h3>What is balanced chemical equation?</h3>

Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations. Varied elements' atom counts in the reactants and products of unbalanced chemical equations are different.

3 Cu + 8HNO3 g → 3 Cu(NO3)2 + 2 NO + 4 H2O

The number of moles consumed can be calculated using comparing with coefficients in the balanced reaction .

So , from above eq we get that 8 moles of HNO3 are consumed to make 2 moles of NO.

⇒  8 HNO3⇔2 NO

⇒ 1 HNO3⇔ 1/4 NO

This means that for each mole of HNO3 produces 1/4 moles of NO.

So , for 97 moles of HNO3 , \frac{1}{4}  *97 moles of NO can be made,

So, total moles of NO made are 24.25 moles.

Lean more about balanced reactions here brainly.com/question/26694427

#SPJ10

3 0
2 years ago
Read 2 more answers
A unicellular, prokaryotic organism that reproduces asexually belongs to which kingdom?​
Ainat [17]

Answer:

fungi

Explanation:

4 0
3 years ago
Other questions:
  • Question 1 When of alanine are dissolved in of a certain mystery liquid , the freezing point of the solution is lower than the f
    15·1 answer
  • Use a Punnett square to help answer the question. Use a Punnett square. In rabbits, black fur is dominant over white fur. What p
    10·1 answer
  • Which statement is an accurate description of the relationship of rocks and minerals
    9·1 answer
  • Calcium reacts with oxygen to form calcium oxide. the chemical equation for this reaction is ca + o2 → cao. what is the product,
    5·1 answer
  • Identify the items in the list below that are examples of matter. Check all that apply idea iron sugar sound glass neon gas
    9·2 answers
  • A certain hybrid car has a mileage rating of 47 miles per gallon. If the car makes a trip of 279 miles, how many gallons of gaso
    15·2 answers
  • Choose the substance with the lowest viscosity. choose the substance with the lowest viscosity. f2chchf2 f2chch2f fch2ch2f f3cch
    5·2 answers
  • Why are the transition metals able to show different properties like varying color and paramagnetism ?
    14·1 answer
  • Milk (pH 6.7)
    9·2 answers
  • What atoms came in please somebody kind help me)))))
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!