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
nlexa [21]
3 years ago
6

Comparing the characteristics of homogeneous and heterogeneous​

Chemistry
1 answer:
Sergeu [11.5K]3 years ago
4 0

answer: A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases.

You might be interested in
You throw a ball straight up in the air trying to throw it as high as possible. What do you think happens to the balls kinetic e
mote1985 [20]
With the info given i would have to say their is no kinetic energy, it's all potential energy.
6 0
3 years ago
How many grams of Ca(NO3)2 are needed to make 25.0 g of a 15.0% Ca(NO3)2(aq)?
yarga [219]

Answer:

3.75 g.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of calcium nitrite = ??? g,

mass of the solution = 25.0 g.

∴ mass % = (mass of solute/mass of solution) x 100

<em></em>

<em>∴ mass of solute (calcium nitrite) = (mass %)(mass of solution)/100</em> = (15.0 %)(25.0 g)/100 = <em>3.75 g.</em>

5 0
3 years ago
Почему молекулы алканов в пространстве имеют зигзагообразную форму
Solnce55 [7]

Answer:

Alkanes (also saturated hydrocarbons , paraffins ) are acyclic hydrocarbons of a linear or branched structure, containing only simple bonds and forming a homological series with the general formula C n H 2n + 2 .

Explanation:

ll alkanes belong to a larger class of aliphatic hydrocarbons. Alkanes are saturated hydrocarbons, that is, they contain the maximum possible number of hydrogen atoms for a given number of carbon atoms. Each carbon atom in the alkane molecules is in a state of sp 3 - hybridization  - all 4 hybrid orbitals of the C atom are identical in shape and energy, 4 bonds are directed to the vertices of the tetrahedron at angles of 109 ° 28 '. C – C bonds are σ bonds characterized by low polarity and polarizability . The C – C bond length is 0.154 nm , the C – H bond length is 0.1087 nm.

The simplest member of the class is methane (CH 4 ). The hydrocarbon with the longest chain — noncontactrictan C 390 H 782 — was synthesized in 1985 by English chemists I. Bidd and MK K. Whiting

6 0
3 years ago
Carbon can form large number of organic compounds why
Vinvika [58]

Answer:

Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules.

8 0
3 years ago
Name and describe three of the five branches of chemistry.
Burka [1]
Organic Chemistry
Inorganic Chemistry
Analytical Chemistry
Physical Chemistry
Biochemistry
4 0
4 years ago
Read 2 more answers
Other questions:
  • How many covalent bonds are predicted for each atom: (a) F; (b) Si; (c) Br; (d) O; (e) P; (f) S?
    14·2 answers
  • How do electrons move between atoms to create electricity?
    11·2 answers
  • What are diatomic molecules and are they compounds? PLEASE ANSWER ASAP!!
    14·1 answer
  • Consider two bulbs seperated by a valce. Both bulbs are amintained at the same temperature. Assume that when the valve between t
    5·1 answer
  • 22. What is a comet?
    5·1 answer
  • A new engine is being designed that will carry 5.430 x 102 kilograms of methane, CH4, on board. How many liters of gaseous oxyge
    11·1 answer
  • Pls help need it now as I don't know the answer
    15·2 answers
  • Students pour some table salt into a beaker with distilled water to make a solution in order to test its conductivity. When they
    7·1 answer
  • Which coefficients correctly balance the formula equation below? NH 4 NO 2 (s) N 2 (g)+H 2 O(l) A. 1, 2, 2 C. B. 2, 1, 2 D. 1, 2
    7·1 answer
  • A 1. 07 g sample of a noble gas occupies a volume of 363 ml at 35°c and 678 mmhg. Identify the noble gas in this sample. (r = 0.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!