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
s344n2d4d5 [400]
3 years ago
11

At a room temperature a mixture of sand and water can be separated by

Chemistry
1 answer:
Norma-Jean [14]3 years ago
5 0
The misture can be separated by filtration.

You might be interested in
Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. What is the pressure of H2 if the
Margaret [11]

Answer : The pressure of hydrogen gas is 8.96 atm.

Explanation :

The given balanced chemical reaction is:

2Al+6HCl\rightarrow 2AlCl_3+3H_2

From the balanced chemical reaction we conclude that,

As, 2 moles of Al react to give 3 moles of H_2 gas

So, 4.50 moles of Al react to give \frac{3}{2}\times 4.50=6.75 moles of H_2 gas

Now we have to calculate the moles of H_2 gas when percent yield is 75.4.

\text{The moles of }H_2=75.4\% \times 6.75=\frac{75.4}{100}\times 6.75=5.09moles

Now we have to calculate the pressure of H_2 gas.

Using ideal gas equation :

PV = nRT

where,

P = Pressure of hydrogen gas = ?

V = Volume of the hydrogen gas = 14.0 L

n = number of moles of hydrogen gas = 5.09 moles

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of hydrogen gas = 300 K

Putting values in above equation, we get:

P\times 14.0L=5.09mol\times 0.0821L.atm/mol.K\times 300K\\\\P=8.96atm

Therefore, the pressure of hydrogen gas is 8.96 atm.

3 0
2 years ago
Are chromosomes in side the nucleus of a plant cell
Keith_Richards [23]

Answer:

Yes, chromosomes are in the nucleus of all cells that have a nucleus.

Explanation:

5 0
3 years ago
Complete these equations for the ionization of an Arrhenius acid or base in water. Include the states of the products.
Mazyrski [523]
1)
 HI(aq) → H⁺(aq) + I⁻(aq)
So this is an Arrhenius acid because it releases H⁺.

2)
LiOH(s) → Li⁺ + OH⁻
So this is an Arrhenius base because it releases OH⁻
3 0
3 years ago
I have no idea on how to do this here is the question (For the following pairs of atoms, show how they transfer valence electron
Maru [420]

Answer:

uhh

Explanation:

i hope you find this answer

3 0
3 years ago
Which of the following statements is true about a hypothesis?
Tatiana [17]
A hypothesis is a prediction of what you believe to be true.
8 0
2 years ago
Read 2 more answers
Other questions:
  • When an electron loses electrons it becomes more 1 negative. 2 none of the above. 3 neutral 4 positive.
    8·2 answers
  • List a homogeneous material that is not a pure substance
    12·1 answer
  • In atoms, electrons surround the nucleus in
    13·1 answer
  • The first step in creating a network is building a(n) _____.
    7·2 answers
  • Which of the following are considered greenhouse gases? select all that apply.
    8·2 answers
  • What did you include in your response? check all that apply.
    14·1 answer
  • How many electrons are in the outermost energy shell of a calcium atom
    7·1 answer
  • Which is an example of a chemical reaction?
    11·1 answer
  • Can you guys help please
    13·1 answer
  • __Al+__S —&gt;___Al S<br> 8 2 3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!