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
shepuryov [24]
3 years ago
7

A block with a mass of 10g is dropped into a graduated cylinder with 20 mL of water. The water rises to 25 mL. What is the densi

ty of the rock?
Chemistry
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

The answer is

<h2>2.0 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

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

From the question

mass of block = 10 g

volume = final volume of water - initial volume of water

volume = 25 - 20 = 5

volume = 5 mL

The density of the block is

density =  \frac{10}{5}  \\

We have the final answer as

<h3>2.0 g/mL</h3>

Hope this helps you

You might be interested in
Sort the examples based on whether they describe a physical change or a chemical reaction. growth of a seed into a seedling tarn
Pepsi [2]

Answer: I did the research myself since I couldn’t find the answers.

Physical change:

Wax melting from applied heat

Grinding wheat to make flour

Adding copper with gold to make jewelry

Chemical Reaction:

Growth of a seed into a seedling

Making caramel by burning sugar

Tarnishing of silver

Explanation:

Thanks google

4 0
3 years ago
Explain the difference between complete dominance and codominance.Give an example of each one in order to explain it.
Ira Lisetskai [31]
In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.

I hope it helps
Stay home stay safe dear !
8 0
3 years ago
Which of these is an isoelectronic series? question 7 options: 1) na+, k+, rb+, cs+ 2) k+, ca2+, ar, s2– 3) na+, mg2+, s2–, cl–
-BARSIC- [3]
An isoelectronic series is where all of the ions listed have the same number of electrons in their atoms. When an atom has net charge of zero or neutral, it has equal number of protons and electrons. Hence, it means that the atomic number = no. of protons = no. of electrons. If these atoms become ions, they gain a net charge of + or -. Positive ions are cations. This means that they readily GIVE UP electrons, whereas negative ions (anions) readily ACCEPT electrons. So, to know which of these are isoelectronic, let's establish first the number of electron in a neutral atom from the periodic table:

Na=11; K=19; Rb=37; Cs = 55; Ca=20; S=16; Mg=12; Li=3; Be=4; B=5; C=6, Ar = 18

A. Na⁺: 11-1 = 10 electrons
     K⁺: 19 - 1 = 18 electrons
     Rb⁺: 37-1 = 36 electrons

B. K⁺: 19 - 1 = 18 electrons
    Ca²⁺: 20 - 2 = 18 electrons
    Ar:  18 electrons
    S²⁻:  16 +2 = 18 electrons

C. Na⁺: 11-1 = 10 electrons
    Mg²⁺: 12 - 2 = 10 electrons
     S²⁻:  16 +2 = 18 electrons

D. Li=3 electrons
    Be=4 electrons
    B=5 electrons
    C=6 electrons

The answer is letter B.
6 0
3 years ago
What is the maximum number of electrons in p&amp;q shell​
Bad White [126]

Answer:

6 electrons

Explanation:

:)

hope this helps :))))))))

5 0
3 years ago
Read 2 more answers
Which temperature is warmest<br>A. 0°C<br>B. 273 K<br>C. 32°F<br>D. 30°C​
kakasveta [241]
I think your answer will be B. 273 k
7 0
3 years ago
Read 2 more answers
Other questions:
  • 1-magma wich flows through channles to the surface will produce a???
    13·1 answer
  • ORGANISMS THAT ARE EATEN BY OTHER ANIMALS ARE CALLED
    14·2 answers
  • A scientist finds one carbon atom for every two oxygen atoms in a sample of compound x. for which other samples of compound x sh
    14·2 answers
  • Which sample of water contains particles having the highest kinetic energy
    13·2 answers
  • What evidence is there that all state of matter have mass
    7·1 answer
  • Species developed harder shelled eggs to raise them on land, this is to adapt to the changes in the enviorment during the Cenozo
    10·2 answers
  • 9. The broken appearance of pencil in a glass of water is due
    8·1 answer
  • Write the systematic names of the following​
    11·1 answer
  • The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as
    7·1 answer
  • If a compound pulley has four
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!