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
zhenek [66]
3 years ago
12

What is the answer PLEASE HELP!!

Chemistry
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

the water displaced will not help the student find the correct volume because you can not accurately calculate it. you have to get the water when it is settled then you place the wood in.

Explanation:

You might be interested in
You transfer a sample of a gas at 17°C from a volume of 5.67 L and 1.10 atm to a container at 37°C that has a pressure of 1.10 a
laila [671]

Explanation:

V1T1 = V2T2

V2=V1T1/T2

= 5.67*17/37= 2.6

5 0
4 years ago
In a particular electroplating process, the metal being plated has a +4 charge. If 861.8 C of charge pass through the cell, how
Xelga [282]

Answer: 2.2326\times 10^{-3} moles

Explanation:

We are given:

Moles of electron = 1 mole

According to mole concept:

1 mole of an atom contains 6.022\times 10^{23} number of particles.

We know that:

Charge on 1 electron = 1.6\times 10^{-19}C

Charge on 1 mole of electrons = 1.6\times 10^{-19}\times 6.022\times 10^{23}=96500C

The metal being plated has a +4 charge, thus the equation will be:

M^{4+}+4e^-\rightarrow M

4\times 96500C of electricity deposits = 1 mole of metal

Thus 861.8 C of electricity deposits =\frac{1}{4\times 96500}\times 861.8=2.2326\times 10^{-3} moles of metal

Thus 2.2326\times 10^{-3} moles of metal should be plated

3 0
3 years ago
What is a sentence using composition.<br>​
klemol [59]

Answer:

Son aquellas en las que hay más de un verbo núcleo de predicado, por lo que dos o más oraciones forman una más grande; por ejemplo: A Carlos le gusta el fútbol, pero a María solo le gusta el cricket.

Explanation:

7 0
3 years ago
Read 2 more answers
Half of the first 18 elements have an odd number of electrons, and half have an even number. Show why atoms of these elements ar
asambeis [7]

Answer:

Diamagnetism in atom occurs whenever two electrons in an orbital paired equalises with a total spin of 0.

Paramagnetism in atom occurs whenever at least one orbital of an atom has a net spin of electron. That is a paramagnetic electron is just an unpaired electron in the atom.

Here is a twist even if an atom have ten diamagnetic electrons, the presence of at least one paramagnetic electron, makes it to be considered as a paramagnetic atom.

Simply put paramagnetic elements are one that have unpaired electrons, whereas diamagnetic elements do have paired electron.

The atomic orbital and radius increases by gaining electron linearly so even electron numbered atoms are diamagnetic while the odd electron numbered atoms are paramagnetic.

Running through the first 18 elements one can observe that there is an alternative odd number of electrons and an even number proofing that that half of the first 18 elements shows paramagnetism and diamagnetism respectively.

Explanation:

3 0
3 years ago
What is the molarity of a solution prepared by diluting 250 mL of a 40% H2SO4 solution to 1 Liter? The density of the stock solu
kiruha [24]

Answer:

1.195 M.

Explanation:

  • We can calculate the concentration of the stock solution using the relation:

<em>M = (10Pd)/(molar mass).</em>

Where, M is the molarity of H₂SO₄.

P is the percent of H₂SO₄ (P = 40%).

d is the density of H₂SO₄ (d = 1.17 g/mL).

molar mass of H₂SO₄ = 98 g/mol.

∴ M of stock H₂SO₄ = (10Pd)/(molar mass) = (10)(40%)(1.17 g/mL) / (98 g/mol) = 4.78 M.

  • We have the role that the no. of millimoles of a solution before dilution is equal to the no. of millimoles after dilution.

<em>∴ (MV) before dilution = (MV) after dilution</em>

M before dilution = 4.78 M, V before dilution = 250 mL.

M after dilution = ??? M, V after dilution = 1.0 L = 1000 mL.

∴ M after dilution = (MV) before dilution/(V after dilution) = (4.78 M)(250 mL)/(1000 mL) = 1.195 M.

3 0
3 years ago
Other questions:
  • An equimolar mixture of N2(g) and Ar(g) is kept inside a rigid container at a constant temperature of 300 K. The initial partial
    9·1 answer
  • For which of the following reactions are both reactants and products likely to be found when the reaction appears to be complete
    15·1 answer
  • Two substances, A and B, which are of equal mass but at different temperatures, come into thermal contact. The specific heat cap
    9·2 answers
  • A chemist must prepare 550 mL of hydrochloric acid solution with a pH of 1.60 at 25°C .
    12·1 answer
  • Consider this reaction: Fe2O3 + S → Fe + SO2 Reduction half-reaction: 2Fe+3 + 6e- → 2Fe Oxidation half-reaction: S → S+4 +4e- Af
    9·2 answers
  • A mining company wants to build a modern processing plant that is safe for workers. The location of the plant is close to
    5·2 answers
  • Select all that are true
    5·1 answer
  • This system is at equilibrium, what change would shift the equilibrium to the right?
    6·1 answer
  • Define what natural gas is, explain how it forms, and<br> what it is used for today.
    8·1 answer
  • What is the frequency of the green light emitted by a hydrogen atom with a wavelength of 525 nm?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!