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
sergejj [24]
2 years ago
9

An object submerged into 50 cm^3 of water raises the water level to 65 cm^3. The mass of the object is 30 g. What is its density

?
Chemistry
1 answer:
Anna007 [38]2 years ago
8 0

Answer:

Convert the volume to m³.

Explanation:

You might be interested in
WILL MARK BRAINLIEST!!! MULTIPLE CHOICE
Svetradugi [14.3K]

Answer:

It is energy level hope I helped

4 0
2 years ago
Read 2 more answers
If 10 grams of potassium chlorate decompose to form potassium chloride and oxygen gas inside a 500 mL container at a temperature
Gekata [30.6K]

Answer:

10 atm

Explanation:

There's a lot to do here, but lets take it one step at a time. First, let's write a balanced equation for the decomposition of potassium chlorate into potassium chloride and oxgyen gas.

2 KClO3 → 2 KCl + 3 O2

Now let's find the moles of the KClO3 (molar mass 122.55 g/mol) that we have take 10 g/122.55 g/mol, grams will cancel and we are left with 0.0816 moles. lets divide that by two since we have a two in front of the KClO3 in the equation, and then multiply that number by 5 since it's the total moles of products, in summary, multiply by 5/2 to get 0.204 moles.

Now that we know the moles of our products, let's plug some stuff into the ideal gas law PV = nRT. We are looking for P so let's solve for that. P = (nRT)/V, now let's plug in our values. Make sure V is converted to liters so 0.5 L. And convert celcius to kelvin by adding 273

P = ((0.204 moles)(318 K)(0.08206 L atm mol^-1 K^-1))/0.5 L

A lot of units cancel, and we get about 10.65 atm, if you don't want the answer in atm, you can find a conversion equation. But let's round to sig figs for now, which will bring us to 10 atm.

3 0
1 year ago
A sample of lead has a density of 11.3 g/cm3 and a mass of 123 grams, what is the volume of the sample?
SVEN [57.7K]

Answer:

The answer is

<h2>11.18 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 123 g

density = 11.3 g/cm³

The volume is

volume =  \frac{123}{11.3}   \\  = 11.18181818...

We have the final answer as

<h3>11.18 cm³</h3>

Hope this helps you

3 0
3 years ago
A _____ forecasts the weather using data collected from many sources.
Sav [38]
Meteorologist.............................
7 0
3 years ago
Which statement describes the BEST example of animals avoiding competition?
Svetlanka [38]

Answer:

D

Explanation:

If the deer leave the forest then they are avoiding compotation

4 0
2 years ago
Read 2 more answers
Other questions:
  • Convert 238 cm to the unit km. 0.00238 km 0.238 km 2.38 x 105 km 2.38 x 107 km
    14·1 answer
  • Which diagram shows a voltaic cell?
    9·1 answer
  • What is number one I need help
    9·1 answer
  • In coulombs, how much positive charge is there IN a barium nucleus? On a barium ion?
    8·1 answer
  • Which sublevel comes after 4d orbital
    10·1 answer
  • Why do positive ions have a positive charge?​
    8·1 answer
  • Brainiest if you are correct and this is a Test I just need help on the last one.
    15·2 answers
  • Which of the following is the correct Lewis dot diagram for Br found in LiBr.
    5·2 answers
  • Which statement correctly compares what occurs when molecules absorb photons in the microwave region with what occurs when molec
    6·2 answers
  • Exhaling CO2 (Carbon Dioxide) is an example of what?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!