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
Arisa [49]
3 years ago
12

Someone please help me

Chemistry
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:reflection

Explanation:

You might be interested in
Choose the selection which correctly characterizes all three of the following substances in terms of whether they are polar or n
ohaa [14]

Answer:

SiH4 is nonpolar and BBr3 is nonpolar and SiF4 is nonpolar.

Explanation:

SiH4 is a non-polar compound. Though the Si–H bonds are polar, as a result of different electronegativities of Si and H. However, as there are 4 electron repulsions around the central Si atom, the polar bonds are arranged symmetrically around the central atom having a tetrahedral shape hence they cancel out making the compound nonpolar.

SiF4 is a nonpolar molecule because the fluorine atoms are arranged symetrically around the central silicon atom in a tetrahedral molecule with all of the regions of negative charge cancelling each other out just like in SiH4.

The 3 bromine atoms all lie in the same plane thus the geometry of the compound will be trigonal planar. The BBr3 will be non polar because the three B-Br bonds will cancel out each others' dipole moment given that they are in the same plane.

4 0
3 years ago
A compound is 79.94g carbon, 26.82g hydrogen, and 93.24g nitrogen. What is the empirical formula?
Pani-rosa [81]

Answer:

i dont know

Explanation:

sorry

5 0
3 years ago
►<br> 17.2H2 + O2 – 2H20<br> How many moles of oxygen are needed if 8 moles H2 are used?
vesna_86 [32]
That an ip leak don’t trust it ^^^^^^^^^^
5 0
3 years ago
Imagine that small pieces of the metals copper, magnesium and iron are placed in three test tubes labeled A, B, and C, respectiv
Marizza181 [45]
A) Cu

Cu + 2HCl --> CuCl2 + H2(g)

Products predicted: Copper(II) choloride and hydrogen gas


B) Mg

Mg + 2HCl --> MgCl2 + H2

Products predicted: magnesium chloride + hygrogen gas

C) Fe

Fe +2 HCl -> FeCl2 + H2, or
2Fe +6 HCl -> 2FeCl3 + 3H2

Products predicted: Iron(II) chloride, iron (III) chloride and hydrogen gas.

8 0
3 years ago
Which of the following chemical reactions is the only reaction shown that would be predicted to occur based on the activity seri
Novosadov [1.4K]

B. Mn + NiBr₂  →  Ni + MnBr₂

Explanation:

The reaction that can be predicted of all is Mn + NiBr₂  →  Ni + MnBr₂.

The activity series is used to predict the products of single displacement reactions.

The series ranks metals in order of their reactivity. Those higher up in the series are highly reactive metals. Those at the bottom are slightly to non-reactive metals.

For a single displacement reaction to occur, a metal higher up in the activity series displaces one that is lower in the series.

  Reaction A will not occur, Ba is higher in the series

  Reaction C will not occur, Pt and Au are unreactive

  Reaction D will not occur as Zn is lower in the series

Mn is higher in the reactivity series and it will displace Ni from the solution.

Learn more:

Synthesis reaction brainly.com/question/4216541

#learnwithBrainly

7 0
3 years ago
Other questions:
  • If there is initially 1.334 m o2, how long will it take for the o2 concentration to reach 0.443 m?
    5·1 answer
  • How would decreasing the volume of the reaction vessel affect each of the following equilibria? 2NOBr(g) --&gt; 2NO(g)+Br2(g)
    5·1 answer
  • BRAINLIEST GIVE AWAY! Please give the correct answer I will reward you with Brainliest!
    15·1 answer
  • Do viruses have locomotion
    5·2 answers
  • 1) Green laser pointers are becoming popular for presentations. The green light is monochromatic
    11·1 answer
  • How many energy level does carbon have
    6·2 answers
  • ________ is the force that keeps planets in orbit around the sun
    6·2 answers
  • Name two-fluid technologies' that make<br> use of air.
    13·1 answer
  • What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL , should be used to make 5.05 L of an NaOH solut
    12·1 answer
  • What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? quzket
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!