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
Alexxx [7]
2 years ago
6

A graduated cylinder has 20 ml of water placed in it. An irregularly shaped rock is then dropped in the graduated cylinder and t

he volume of the rock and water in the cylinder now reads 30 ml. The mass of the rock dropped into the graduated cylinder is 23 grams
The rock has a volume of
ml. and a density of
g/ml

Whats the answer?
Chemistry
1 answer:
vovikov84 [41]2 years ago
8 0

Answer:

A) Volume = displacement

Therefore the rock has a volume of 10mL

B) density = Mass/ Volume

Therefore density = 23/10 = 2.3 per unit volume

Explanation:

You might be interested in
How many grams of zinc phosphate are formed when 48.1 mL of 2.18 M zinc nitrate reacts with excess potassium phosphate?
Roman55 [17]

Answer:

15.4 g of Zn₃(PO₄)₂ are produced

Explanation:

Given data:

Mass of zinc phosphate formed = ?

Volume of zinc nitrate = 48.1 mL (0.05 L)

Molarity of zinc nitrate = 2.18 M

Solution:

Chemical equation:

3Zn(NO₃)₂ + 2K₃PO₄  →   Zn₃(PO₄)₂ + 6KNO₃

Moles of  zinc nitrate:

Molarity = number of moles / volume in litter

Number of moles =  2.18 M × 0.05 L

Number of moles = 0.109 mol

Now we will compare the moles of zinc phosphate with zinc nitrate from balanced chemical equation:

                     Zn(NO₃)₂           :            Zn₃(PO₄)₂

                         3                    :                 1

                       0.109               :               1/3×0.109 = 0.04 mol

0.04 moles of Zn₃(PO₄)₂ are produced.

Mass of Zn₃(PO₄)₂:

Mass = number of moles × molar mass

Mass = 0.04 mol × 386.1 g/mol

Mass = 15.4 g

   

6 0
2 years ago
How many atoms are in an oxygen molecule?
ZanzabumX [31]

Answer:

two atoms

Explanation:

In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen O, or ozone, a molecule of three oxygen atoms, O3. Even though each of these is all oxygen, combining atoms of the same element may give very different properties to the molecule.

6 0
3 years ago
55 points take the or whatever but Im getting head on my 15th bday on march 26th gonna be great also help me Two or more substan
Kipish [7]
Mixture is the answer.
3 0
2 years ago
What is displacement reaction​
jenyasd209 [6]
A displacement reaction (also known as a replacement reaction) is when one element is replaced by another compound. Ex) Fe+CuSO4=FeSO+Cu
3 0
2 years ago
Read 2 more answers
Carbon tetrachloride contains one carbon and four chlorine atoms. for this compound 11.818 g of chlorine combine with 1.000 g of
Feliz [49]
12000 I iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
5 0
2 years ago
Read 2 more answers
Other questions:
  • . Using the following equation: F = ma Solve for m (1 point)
    14·1 answer
  • This is a Science Question:
    14·1 answer
  • Which of the following is the best definition of nodes?
    5·2 answers
  • Which statement describes a step in the formation of an ionic bond?
    15·2 answers
  • What SI unit is used to measure the number of representative particles in a substance?
    12·1 answer
  • What allows electricity to be conducted when dissolved in water
    13·1 answer
  • Calculate the amount of energy when water at 72 degrees c freezes completely at 0 degrees c
    13·1 answer
  • Alligators are the large predators that eat many smaller animals in a swamp how might removing the alligators from a swamp habit
    7·1 answer
  • Air is about 78% nitrogen gas (N2) by mass. The molar mass of nitrogen gas is 28. 0 g/mol. A 100. 0-g sample of air contains how
    9·1 answer
  • A buffer is prepared by adding 300. 0 ml of 2. 0 mnaoh to 500. 0 ml of 2. 0 mch3cooh. what is the ph of this buffer? ka= 1. 8 10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!