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
nordsb [41]
3 years ago
14

Please do 1-5! giving 5 stars and thanks if right!

Chemistry
1 answer:
Burka [1]3 years ago
6 0

Answer:

1. 100 centimeters

2. 1 gram

3. 1000 meters

4. 10 millimeters

5. 1000 grams

You might be interested in
A star is estimated to have a mass of of 2 X 10^36 kg. Assuming it to be a sphere with an average radius of 7.5 X 10^5 km, calcu
Trava [24]
113234253616418966.7374380750177kg/m^3
4 0
3 years ago
8g of aqueous Sodium Hydroxide reacts with 4g of aqueous Aluminum Chloride to produce aqueous Sodium Chloride and solid Aluminum
slava [35]

Answer:

The limiting reactant is AlCl₃ and the excess reactant is NaOH.

Explanation:

  • The balanced equation for the mentioned reaction is:

<em>3NaOH(aq) + AlCl₃(aq) → 3NaCl(aq) + Al(OH)₃(s)↓,</em>

It is clear that 3.0 moles of NaOH(aq) react with 1.0 mole of AlCl₃(aq) to produce 3.0 moles of NaCl(aq) and 1.0 mole of Al(OH)₃(s).

  • Firstly, we need to calculate the no. of moles of (8.0 g) of NaOH and (4.0 g) of AlCl₃:

no. of moles of NaOH = mass/molar mass = (8.0 g)/(40.0 g/mol) = 0.2 mol.

no. of moles of AlCl₃ = mass/molar mass = (4.0 g)/(133.34 g/mol) = 0.03 mol.

  • From stichiometry; NaOH reacts with AlCl₃ with (3: 1) molar ratio.

∴ 0.09 mol of NaOH (the remaining 1.1 mol is in excess) reacts completely with 0.03 mol of AlCl₃.

  • So,

<em>the limiting reactant is AlCl₃ and the excess reactant is NaOH.</em>

<em></em>

6 0
3 years ago
Which atmospheric layer is where Earth's northern and southern lights occur?
gtnhenbr [62]
The Northern and Southern lights (also known as Auroras) take place in the Thermosphere.

Hope this helps(:
8 0
4 years ago
Read 2 more answers
Calculate the volume in liters of a silver perchlorate solution that contains of silver perchlorate . Be sure your answer has th
lbvjy [14]

Answer:

See explanation below

Explanation:

You are missing two values there. First, we need to know the concentration or initial quantity of the silver perchlorate solution, and then, the quantity in grams or moles of the solution.

Tipically these kind of questions, usually gives the original concentration of the solution, and then, the grams or moles.

In this case, you are not providing either value, but I will assume some values and do it in the longest way, and then, you just have to replace your values in the procedure to get the accurate result.

For this problem, I will assume the concentration of 3.5 mol/L and contains 180 g of perchlorate.

We need to know the volume in liters of this solution. We use the following expression:

M = n/V

From here, we solve for V:

V = n/M (1)

But we do not have the moles, but these can be calculated with:

n = m/MM (2)

So all we have to do, is to use the molar mass of perchlorate and calculate the moles. The reported molar mass for silver perchlorate is 207.32 g/mol so replacing in (2)

n = 180 / 207.32 = 0.8682 moles

Now that we have the moles, replace in (1) to get the volume:

V = 0.8682 / 3.5

<u>V = 0.2481 L or simple 248.1 mL</u>

<u>This is the volume in this solution. Now replace your own data in this procedure and you should get the accurate result.</u>

5 0
3 years ago
The solubility of solids in water: The solubility of solids in water: decreases with increasing temperature. increases with incr
Alexandra [31]

Answer:

None of the above.

Explanation:

The solubility is the amount of a compound that can be dissolved for a solvent (generally water).

Generally, the solubility of solids in water increases when the temperature increases. In this case, the dissolution is endothermic. But there are some substances, such as glucose, that exhibit an exothermic dissolution, and for an increase in the temperature, the solubility decreases.

So, we can't generalize and say that the solubility in solids increases with the increase of the temperature.

5 0
4 years ago
Other questions:
  • (b) what is the ph of a solution containing 0.03m benzoic acid (pka 3.19) and 0.02m nabenzoate?
    12·1 answer
  • How do you find out the average rate of reaction
    12·1 answer
  • Electric field lines:
    5·1 answer
  • Write the cell notation for an electrochemical cell consisting of an anode where Mn (s) is oxidized to Mn2 (aq) and a cathode wh
    13·1 answer
  • Every organism has a unique common name.
    15·2 answers
  • State joule thomson effect
    15·1 answer
  • Increasing the temperature gives particles more
    12·2 answers
  • At a certain concentration of N2 and H2, the initial rate of reaction is 5.0 x 105 M / s. What would the initial rate of the rea
    15·1 answer
  • Humanities !
    9·1 answer
  • CAN SOMEONE PLEASEEE HELP ME!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!