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
Mnenie [13.5K]
3 years ago
10

2. Bart finds a solid shiny

Chemistry
1 answer:
notsponge [240]3 years ago
7 0

Answer:

1. Density of metal object = <em><u>11000 kg / m3</u></em>.

2. Could the object be gold = <em><u>No,because the density of gold is 19300 kg / m3</u></em>.

You might be interested in
A sample of gas contains 0.1800 mol of CO(g) and 0.1800 mol of NO(g) and occupies a volume of 23.2 L. The following reaction tak
baherus [9]

Answer:

The volume of the sample is 17.4L

Explanation:

The reaction that occurs requires the same amount of CO and NO. As the moles added of both reactants are the same you don't have any limiting reactant. The only thing we need is the reaction where 4 moles of gases (2mol CO + 2mol NO) produce 3 moles of gases (2mol CO2 + 1mol N2). The moles produced are:

0.1800mol + 0.1800mol reactants =

0.3600mol reactant * (3mol products / 4mol reactants) = 0.2700 moles products.

Using Avogadro's law (States the moles of a gas are directly proportional to its pressure under constant temperature and pressure) we can find the volume of the products:

V1n2 = V2n1

<em>Where V is volume and n moles of 1, initial state and 2, final state of the gas</em>

Replacing:

V1 = 23.2L

n2 = 0.2700 moles

V2 = ??

n1 = 0.3600 moles

23.2L*0.2700mol = V2*0.3600moles

17.4L = V2

<h3>The volume of the sample is 17.4L</h3>
8 0
2 years ago
A flashbulb of volume 1.70 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 18.0°C. How many grams of O2(g)
Lady bird [3.3K]

Answer:

0.0001637 mol

Explanation:

PV = nRT

Very important formula in chem

2.3 atm * 0.0017 L = n * 0.082057 * 291 K

= 0.0001637 mol O2

This concept is very important in chem, practice it.

7 0
3 years ago
Solids or liquids are not included in an equilibrium expression because:
Harlamova29_29 [7]
I believe the answer is D
7 0
3 years ago
What is the reason for the low solubility of LiF (0.27 g
Brut [27]

Answer:

The answer is C. The high solvation energy for LI+

Explanation:

LiF has lower solubility because of the high solvation energy of Li+ ion. This is due to the smaller  size and very big charge compared to Cs+ ion which has a bigger size and solvent molecules easily surround it.

Solvation energy is simply the amount energy that is required to make a solute dissolve in a solvent.

3 0
3 years ago
Hydrogen monofluoride
Sindrei [870]

Answer:

what's the question man

Explanation:

3 0
3 years ago
Other questions:
  • If the concentration of phosphate in the cytosol is 2.0 mM and the concentration of phosphate in the surrounding fluid is 0.1 mM
    11·1 answer
  • How many acetate ions are formed when three formula units of zinc acetate dissociate?
    7·1 answer
  • How many particles would be found in a 89.2 g sample of Na?
    5·1 answer
  • 50.00 mL of 0.10 M HNO 2 (nitrous acid, K a = 4.5 × 10 −4) is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH sol
    14·1 answer
  • Calcium ions are removed from the sarcoplasm of the cardiac cell by the action of the sarcoplasmic reticulum (SR) Ca2+-ATPase pu
    6·1 answer
  • Fumaric acid, which occurs in many plants, contains, by mass, 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen. The molecular mass
    6·1 answer
  • Write in exponential form: 34⋅34⋅34⋅34⋅34⋅34⋅34⋅34.
    9·1 answer
  • Who know the answers for both of these or know were to get them from
    7·2 answers
  • GIVING 17 POINTS PLS HELP ME!!!!
    7·1 answer
  • What is the ph of a peach with a [ –oh] = 3.2 × 10 –11 m?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!