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]
3 years ago
8

Whats the ansewr giving brainliest

Chemistry
1 answer:
vovikov84 [41]3 years ago
5 0

Answer:

A.

Explanation:

I just know.

Please mark me brainliest!!!!! I need it!!!!

You might be interested in
How much heat energy is required to raise the temperature of 0.368 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of co
Dmitriy789 [7]
23.0 + 60.0 = 83.0° C heat energy is required to raise
7 0
3 years ago
Calculate the mass percent (m/m) of a solution prepared by dissolving 51.56 g of NaCl in 164.2 g of H2O. Express your answer to
denis-greek [22]

Answer:

"23.896%" is the right answer.

Explanation:

The given values are:

Mass of NaCl,

= 51.56 g

Mass of H₂O,

= 165.6 g

As we know,

⇒  Mass of solution = Mass \ of \ (NaCl+H_2O)

                                 = 51.56+164.2

                                 = 215.76 \ g

hence,

⇒ Mass \ percent =\frac{Mass \ of \ NaCl}{Mass \ of \ solution}\times 100

                           =\frac{51.56}{215.76}\times 100

                           =23.896 \ percent

4 0
2 years ago
What determines an object’s ability to float?
Nezavi [6.7K]
Simply put, density is how tightly “stuff” is packed into a defined space.

For example, a suitcase jam-packed with clothes and souvenirs has a high density, while the same suitcase containing two pairs of underwear has low density. Size-wise, both suitcases look the same, but their density depends on the relationship between their mass and volume.
Mass is the amount of matter in an object.
Volume is the amount of space that an object takes up in three dimensions.

Density is calculated using the following equation: Density = mass/volume or D = m/v.

If something is heavy for its size, it has a high density. If an object is light for its size it has a low density.

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float.
3 0
2 years ago
What is the mass of and object with a volume of 100 cm3 and a density of 10 g/cm3?
nadezda [96]

Answer:

1000 g

Explanation:

d = m/v

We are given d: 10g/cm3

and v: 100cm3

Plug them into the equation to get 10 = m/100

Then, cross multiply 10x100 to get mass which is: 1000g

4 0
2 years ago
What is the meaning of barren in this sentence?
JulsSmile [24]

Having little vegetation

Dry and lifeless

Completely empty

5 0
3 years ago
Read 2 more answers
Other questions:
  • The pH of a solution is 2.0. Which statement is correct?
    12·2 answers
  • How many moles of hydrogen are in 5.2 moles of c7h18
    8·2 answers
  • Find the Nazca plate and the South American plate. How are they different? Are they moving toward or away from each other?
    6·1 answer
  • The density of mercury (hg, a liquid metal) is 13.6 g/ml. how much would 18.0 ml of mercury weigh?
    9·1 answer
  • Why do polar bonds form?
    13·1 answer
  • As you get closer to the boundary between two of the Earth's Plates what is most likely to happen to the intensity of the Earthq
    12·1 answer
  • If 100 g of a substance reacts with 70 g of another substance, what will be the mass of the products after the reaction?
    14·1 answer
  • A student determines the density of an element to be 2.73 g/cm 3 . If the accepted value is 2.70 grams per cm 3 , what is the st
    15·1 answer
  • What is the voltage of the electrochemical cell written as: Cu(s) I Cu?t(aq) Il Mg2+(aq) I Mg(s)? - APEX
    10·1 answer
  • Why did Tim conclude that all matter is mostly made of empty space?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!