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
SIZIF [17.4K]
3 years ago
13

Arrange these elements according to increasing reactivity: Br, I, F, Cl

Chemistry
1 answer:
zzz [600]3 years ago
7 0
It should be I, Br, Cl, F
You might be interested in
Is a burning log an exothermic or endothermic event if the log is the system?
denpristay [2]
It would be endothermic because the log is in the system.
6 0
3 years ago
What needs to happen for the equation CH4 + O2 → CO2 + H2O to be balanced?
worty [1.4K]
B. This is because the Hydrogen and Oxygen need balanced out.

Current-

C-1            |        C-1
H-4            |         H-2
O-2            |         O-3


Adding a coefficient of 2 before oxygen in the reactants and H2O in the products would balance this equation

<span>CH4 + 2O2 → CO2 + 2H2O</span>
C-1            |        C-1
H-4            |         H-4
O-4            |        O-4


4 0
3 years ago
Look at the equation for the reaction for nitric oxide and oxygen. Do you think this is a single-step reaction or a multistep re
Sveta_85 [38]

Answer:

This is most likely a multi-stepped reaction.

Explanation:

From the collision theory, we know that it is super improbable for 3 different molecules (2 NO and 1 O2) to all hit each other at the perfect speed in the perfect position to make the products. From this, we can pretty confidently say that this is most likely a multi-stepped reaction.

Hope this helps! :)

4 0
3 years ago
Describe at least two methods to separate a mixture of small copper and iron beads
bekas [8.4K]
<span>A fast way to separate the mixture would be to use a magnet. Iron is magnetic while copper is not. The second method would be to visually separate them since iron and copper distinctly different colors.</span>
3 0
3 years ago
Read 2 more answers
The element gallium has an atomic weight of 69.7 and consists of two stable isotopes gallium -69 and gallium -71. The isotope ga
BigorU [14]

Answer:

The answer to your question is Gallium-71 = 70.9202 amu

Explanation:

Gallium atomic weight = 69.7

Gallium-69 = 68.9 amu    abundance = 60.4%

Gallium-71 =     x                abundance = 39.6%  

To solve this problem just write an equation and solve it for the mass of gallium-71.

Equation

Gallium = Gallium-69(abundance) + Gallium-71(abundance)

Substitution

69.7 = (68.9)(0.604) + Gallium-71(0.396)

69.7 = 41.6156 + Gallium-71(0.396)

Gallium-71(0.396) = 69.7 - 41.6156

Gallium-71(0.396) = 28.0844

Gallium-71 = 28.0844/0.396

Gallium-71 = 70.9202 amu

3 0
3 years ago
Other questions:
  • PLEASE HELP ME ASAP!!<br> How many molecules are in 7.5 grams of Oxygen gas?
    9·1 answer
  • Which process transfers heat from inside earth to its surface
    11·2 answers
  • 2. Which calorimeter lost energy?
    15·1 answer
  • Help plz this is part b to my last question​
    10·1 answer
  • How do the differences in the polyatomic ions po3 3- and po4 3- help you determine whether each ends in -ite or -ate?
    9·1 answer
  • How is hydrogen in heavy water different from hydrogen in normal water?
    5·2 answers
  • Which of the following is a physical change?
    15·1 answer
  • What biological molecule that is used for energy is represented by the structure below?
    13·1 answer
  • When a surface is experiencing friction with another surface, how are the particles
    11·1 answer
  • How many moles are equal to 8.44 x 1023 atoms of sulfur?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!