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
lapo4ka [179]
2 years ago
7

Can i have someone do this its my birthday and im giving a brainlist

Chemistry
1 answer:
MrRa [10]2 years ago
6 0

Answer:

1.) density can be defined as the mass of the substance in unit volume

density=mass/volume

2.)2.70g/mL

mass of the block =146

length× width×height=54cm=54mL

density=mass/volume =146 g/54 mL =2.70 g/mL

3.) 3.39 g/mL

4.)Accepted value is the value that scientists and community accept as true. This is a theoretical value.

5.)Percent error is 9.11 % The element which has 7.13 g/cm³ as density is Zinc (Zn).

Explanation:

I helped my brother with it and he got it right let me know if it was right for you too:)

thank me if it was

You might be interested in
What do you think is the most important element and why? Include information
Snowcat [4.5K]

Answer:

Hydrogen

Explanation:

It is considered a special element due to its flexibility in giving up & taking in electrons, therefore making it good for organic & inorganic chemistry. Hydrogen has only one proton and one electron and is the only element which has no neutrons. it is considered as the simplest element in the universe and gives a valid reason for it to be the most abundant and common element in the universe.

Hoped this helped! If this doesn't fit your 80 word count, you could shorten it.

5 0
3 years ago
1. When frequency increases energy:
liraira [26]
B

When frequency increases, as does the energy, but wavelength decreases. It also works vise versa; if wavelength were to increase, its frequency and energy will decrease.
8 0
3 years ago
What is the charge associated with each side of the HCl molecule?
Alexandra [31]

HCl is a polar molecule with the hydrogen part being partial positive while the chlorine end being partial negative. This is because hydrogen has an electronegativity of 2.1, and chlorine has an electronegativity of 3.0. This means that chlorine attracted most of the electron cloud of molecule hence is the negative dipole, The dipole moment of HCl is 1.08 D (debyes). A Debye is equal to 3.34 x 10-30 coulomb-meters (C-m). The charge of each molecule is o.176+ for H and 0.176- for the Cl

3 0
3 years ago
Read 2 more answers
If Log 4 (x) = 12, then log 2 (x / 4) is equal to
Alexus [3.1K]

The value of log₂(x/4) is 22. Using the properties of the logarithm, the required value is calculated.

<h3>What are the required properties of the logarithm?</h3>

The required logarithm properties are

logₐx = n ⇒ aⁿ = x; and logₐ(xⁿ) = n logₐ(x);

Where a is the base of the logarithm.

<h3>Calculation:</h3>

It is given that,

log₄(x) = 12;

On applying the property logₐx = n ⇒ aⁿ = x; here a = 4;

So,

log₄(x) = 12 ⇒ 4¹² = x

⇒ x = (2²)¹² = 2²⁴

Then, calculating log₂(x/4):

log₂(x/4) = log₂(2²⁴/4)

              = log₂(2²⁴/2²)

              = log₂(2²⁴ ⁻ ²)

              = log₂(2²²)

On applying the property logₐ(xⁿ) = n logₐ(x);

log₂(x/4) = 22 log₂2

We know that logₐa = 1;

So,

log₂(x/4) = 22(1)

∴ log₂(x/4) = 22.

Learn more about the properties of logarithm here:

brainly.com/question/12049968

#SPJ9

8 0
1 year ago
Coca cola is similar to tomato juice because
olya-2409 [2.1K]
B.) Because they both are Acids

Hope this helps!
4 0
3 years ago
Read 2 more answers
Other questions:
  • United States
    11·1 answer
  • Which of these are chemical changes in matter? Check all that apply.
    8·2 answers
  • The test tube that contained the calcium metal was probably the most difficult of the test tubes to clean. Why was aqueous HCl u
    13·1 answer
  • How is a compound different from a mixture?
    15·2 answers
  • In 1911, Ernest Rutherford tested the atomic model existing at the time by shooting a beam of alpha particles (42He, helium nucl
    13·1 answer
  • 1. Which of the following is a linear inequality in two variables?
    8·2 answers
  • How many moles are in 3.2x10^23 atoms of francium?
    15·1 answer
  • You wish to make a 0.405 M hydrochloric acid solution from a stock solution of 3.00 M hydrochloric acid. How much concentrated a
    5·1 answer
  • Quick help!!
    6·1 answer
  • Look at the two question marks between zinc (zn) and arsenic (as). at the time, no elements were known with atomic weights betwe
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!