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
nikitadnepr [17]
3 years ago
11

7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's

Chemistry
1 answer:
Mice21 [21]3 years ago
5 0

Answer:

1) the mantle is less dense than the core but more dense than the crust.

You might be interested in
A student heats a sample of hydrate once, and the mass of the sample and the evaporating dish is 16.428 g. After a second heatin
jolli1 [7]

Answer:

12.371 g

Explanation:

Given :

m_{evaporating\ dish}=1.135\ g

m_{evaporating\ dish}+m_{Hydrate\ sample}=25.637\ g

m_{evaporating\ dish}+m_{First\ heated\ sample}=16.428\ g

m_{evaporating\ dish}+m_{Second\ heated\ sample}=13.266\ g

Mass of salt hydrate:

m_{evaporating\ dish}=1.135\ g

m_{evaporating\ dish}+m_{Hydrate\ sample}=25.637\ g

m_{Hydrate\ sample}=25.637-m_{evaporating\ dish}\ g=25.637-1.135\ g=24.502\ g

Mass of salt anhydrous:

m_{evaporating\ dish}=1.135\ g

m_{evaporating\ dish}+m_{Second\ heated\ sample}=13.266\ g

m_{Second\ heated\ sample}=m_{salt\ anhydrous}=13.266-m_{evaporating\ dish}\ g=13.266-1.135\ g=12.131\ g

Mass of water:

m_{water}=m_{Hydrate\ sample}-m_{salt\ anhydrous}=24.502-12.131\ g=12.371\ g

m_{water}=12.371\ g

4 0
4 years ago
Helium is most likely to behave as an ideal gas when it is under(1) high pressure and high temperature(2) high pressure and low
Mekhanik [1.2K]
Helium is most likely to behave as an ideal gas when it is under 2) High pressure and low temperature. 
3 0
4 years ago
Read 2 more answers
This is the chemical formula for acetone: CH32CO. Calculate the mass percent of carbon in acetone.
olga_2 [115]

Answer:

62.07 %

Explanation:

Chemical Formula =  (CH3)2CO = C3H6O

Mass of C = 12 g/mol

Mass of H = 1 g/mol

Mass of O = 12 g/mol

Mass of  C3H6O = 3(12) + 6(1) + 16 = 58 g/mol

Total mass of C in Acetone = 12 * 3 = 36 g

Mass Percent of C =  Total mass of C / Mass of Acetone   *  100

Mass percent = 36 / 58    *  100

Mass percent = 62.07 %

6 0
3 years ago
Help mee, thank you. Science. Due tonight and I am very tired now :/
madreJ [45]
The first question it would would release the same amount.the answer to the second question would be the experimental group.
3 0
3 years ago
Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of ener
Juliette [100K]
D.

The water must be heated and removed in distillation, so thermal energy is required.
4 0
3 years ago
Read 2 more answers
Other questions:
  • When magnesium carbonate, MgCO2, reacts with nitric acid, HNO3, it forms magnesium nitrate, Mg(NO3)2, and carbonic acid, H2CO3.
    12·1 answer
  • Sub atomic particle mass
    14·1 answer
  • Which element experiences greater London dispersion forces?
    9·2 answers
  • Jason has five equally massed lead fishing weights, each weighing 250 grams. What is the total mass of the five leaf fishing wei
    7·1 answer
  • in a certain solvent is first order with respect to (CH3)3CBr and zero order with respect to OH2. In several experiments the rat
    6·1 answer
  • A substance has a melting point of 0 degrees C and a boiling point of 100 degrees
    5·2 answers
  • True or false
    8·1 answer
  • Need help on science ASAP
    13·1 answer
  • - How does melting point compare among molecular compounds and ionic compounds?
    9·1 answer
  • What are colligative properties of solutions ?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!