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
klasskru [66]
3 years ago
14

Which phrase provides the best definition of a landform region?

Chemistry
2 answers:
Naddik [55]3 years ago
8 0
A would be your answer
kolezko [41]3 years ago
7 0

Answer:

a large area where the topography is made up of one landform.

You might be interested in
What experimental evidence led to the development of this atomic model
Yanka [14]
Rutherford’s experimental evidence led to the development of this atomic model from the one before it . According to him , a few of the positive particles pointed at a gold foil appeared to ricochet back off of the light metallic foil. This experimental evidence gives the root the development of the atomic model .
8 0
3 years ago
The density of human blood is 1.06g/ml the volume is 5.5l what is the mass in kg
kondor19780726 [428]

The mass of the blood is 5.8 kg.

<em>V</em> = 5.5 L = 5500 mL

Mass = 5500 mL × (1.06 g/1 mL) = 5800 g = 5.8 kg

6 0
3 years ago
A 3.452 g sample containing an unknown amount of a Ce(IV) salt is dissolved in 250.0 mL of 1 M H2SO4. A 25.00 mL aliquot is anal
Olenka [21]

Answer:

The weight percent in the sample is 17,16%

Explanation:

The dissolution of the Ce(IV) salt provides free Ce⁴⁺ that reacts, thus:

2Ce⁴⁺ + 3I⁻ → 2Ce³⁺ + I₃⁻

I₃⁻ + 2S₂O₃²⁻ → 3I⁻ + S₄O₆²⁻

The moles in the end point of S₂O₃⁻ are:

0,01302L×0,03247M Na₂S₂O₃ = 4,228x10⁻⁴ moles of S₂O₃²⁻.

As 2 moles of S₂O₃⁻ react with 1 mole of I₃⁻, the moles of I₃⁻ are:

4,228x10⁻⁴ moles of S₂O₃⁻×\frac{1molI_{3}^-}{2molS_{2}O_{3}^{2-}} = <em>2,114x10⁻⁴ moles of I₃⁻</em>

As 2 moles of Ce⁴⁺ produce 1 mole of I₃⁻, the moles of Ce⁴⁺ are:

2,114x10⁻⁴ moles of I₃⁻× \frac{2molCe^{4+}}{1molI_{3}^-} =  <em>4,228x10⁻⁴ moles of Ce(IV)</em>.

These moles are:

4,228x10⁻⁴ moles of Ce(IV)×\frac{140,116g}{1mol} = 0,05924 g of Ce(IV)

As was taken an aliquot of 25,00mL from the solution of 250,0mL:

0,05924 g of Ce(IV)×\frac{250,0mL}{25,00mL} =0,5924g of Ce(IV) in the sample

As the sample has 3,452g, the weight percent is:

0,5924g of Ce(IV) / 3,452g × 100 = <em>17,16 wt%</em>

I hope it helps!

3 0
3 years ago
What do carbon, hydrogen, and oxygen atoms have in common?
horsena [70]

Answer:

electrons located outside the nucleus

Explanation:

electrons are said to be located outside the nucleus of an atom and are in orbit around the nucleus.

according to Bohr in 1913.

6 0
1 year ago
How many atoms of each element are represented in Sn(CO3)2
Marina86 [1]
Sn=2
C and O=6
Im pretty confident yet I forgot a bit.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which condition would lower the salinity of ocean water? A. high rates of evaporation B. freezing of glaciers C. extremely hot w
    5·2 answers
  • The organic products of saponification reaction include soap molecules and ?
    14·2 answers
  • The molar mass of c3h8o2 (four significant figures) is ________.
    6·1 answer
  • Write a complete reaction of succinic acid and acetic anhydride
    10·1 answer
  • What is the maximum number of electrons that can be contained in the first, second, third, and fourth energy levels, respectivel
    9·1 answer
  • If the [H+] in a solution is 1 x 10^-1 mol/L, what is the [OH-]? Show your work, please i need help
    14·1 answer
  • Strength, sickness, Stretchiness, and color are all different
    7·1 answer
  • HELP PLEASE HERE IS THE QUESTION The shape of an apple is a CHEMICAL OR A PHYSICAL CHANGE OR CHEMICAL OR A PHYSICAL PROPITRY.
    9·2 answers
  • Water molecules tend to be ________ because they are held together by __________ bonds.
    6·1 answer
  • How many electrons are lost or gained in forming each ion? a. Ba2+ b. As3- c. Cu2+
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!