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
Murrr4er [49]
3 years ago
12

When she dropped a rock into a graduated cylinder of water, Veronica noticed it sank to the bottom. She decided to investigate w

hat it would do if she tossed it into a much larger amount of water. When she tossed it into a lake, the rock sank again. A) The density of a substance is the same regardless of the amount. B) The lake had become less dense because of heavy rains in the past month. C) The rock was already wet from being submerged in the graduated cylinder of water. D) An object's density changes based on the amount of substance in which it is submerged.
Chemistry
2 answers:
Romashka [77]3 years ago
8 0
A is correct. water is incompressible, so it will always have the same density, regardless of volume
Oksana_A [137]3 years ago
4 0

a)the density of a substance is the same regardless of the amount
You might be interested in
What are the molarity and osmolarity of a 1-liter solution that contains half a mole of calcium chloride? How many molecules of
givi [52]

Answer:

Molarity = 0.5 M

Osmolarity = 0.5 x 2 = 1 Osmpl.

Molecules of Cl2 = 6.02 x 10^{23} / 4= 1.505 x 10^{23} no. of molecules

Explanation:

If we add half mole in 1L volume than molarity will obviously be 0.5 M.

The osmolarity is molarity multiplies by number of dissociates of solute that for CaCl2 are 2. So, 2 x 0.5 = 1

Half will be molecules of Ca and half will be of Cl2 for 0.5M.

6 0
3 years ago
What is the mass of 8.0 x 10^26 UF6 molecules?
gulaghasi [49]
First, find the number of moles of UF6
Avagadro's number = 6.023 x 10^23

Number of moles = 8.0 x 10^26 / Avagadro's number = 8.0 x 10^26 / 6.023 x 10^23 = 1.328 x 10³ moles

Molecular weight of UF6 = Molecular weight of U (238.02891) + Molecular weight of F6 (6 x 18.9984032) = 238.02891 + 113.9904192 = 352.0193292 g/mol

Therefore mass of 8.0 x 10^26 UF6 molecules = 352.0193292 g/mol x 1.328 x 10³ moles = 467.481669 x 10³ grams




3 0
3 years ago
What volume of water is required to prepare 0.1 M H3PO4 from 100 ml of 0.5 M solution?
ExtremeBDS [4]

Answer: A volume of 500 mL water is required to prepare 0.1 M H_{3}PO_{4} from 100 ml of 0.5 M solution.

Explanation:

Given: M_{1} = 0.1 M,    V_{1} = ?

M_{2} = 0.5 M,       V_{2} = 100 mL

Formula used to calculate the volume of water is as follows.

M_{1}V_{1} = M_{2}V_{2}

Substitute the values into above formula as follows.

M_{1}V_{1} = M_{2}V_{2}\\0.1 M \times V_{1} = 0.5 M \times 100 mL\\V_{1} = 500 mL

Thus, we can conclude that a volume of 500 mL water is required to prepare 0.1 M H_{3}PO_{4} from 100 ml of 0.5 M solution.

7 0
3 years ago
Elements symbol
Marat540 [252]
1) H
2) He
3) Li
4) Be
5) B
6) C
7) N
8) O
9) F
10) Ne
11) Na
12) Mg
13) Al
14) Si
15) P
16) S
17) Cl
18) Ar
19) K
8 0
3 years ago
What is the mass of the beaker plus water
grigory [225]
To find the mass of the water, you will first need to find the mass of a dry 100 mL beaker.-------51.377g 
<span>Next, find the mass of the 100 mL beaker containing your water sample. ------------------------ 101.23g  hope this helps :()</span>
7 0
3 years ago
Other questions:
  • What is the molarity of a sodium chloride solution made by dissolving 4.512 moles to make 2.0 L?
    6·1 answer
  • Use electron transfer or electron shift to identify what is oxidized and what is reduced in each reaction :
    5·2 answers
  • If you had 24 moles of hydrogen gas how many moles of ammonia (NH3) would be produced?
    10·1 answer
  • How is energy transformed from one form to another? Give three examples of objects that have potential energy and kinetic energy
    8·1 answer
  • 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)
    9·1 answer
  • ¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr​
    5·1 answer
  • A student walks 2km in 30 minutes. What is the student's average speed in km/h
    7·1 answer
  • Which statement about Fe is supported by the modern atomic theory but not John Dalton’s theory?
    12·2 answers
  • Which of these is a common to all chemical changes
    11·2 answers
  • If during an experiment zinc was found to be more reactive than lead or copper, zinc would be considered the strongest _____.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!