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
Sauron [17]
3 years ago
8

When the equation __H2O2 --> __H2O + __O2 Is completely balanced, the sum of all the coefficients will be A) 5 B) 8 C) 3 D) 4

Chemistry
1 answer:
kkurt [141]3 years ago
8 0

Answer:

A)5

Explanation:

2H2O2 --> 2H2O + 1O2

2+2+1=5

sum=5

You might be interested in
Write the complete balanced equation for the reaction between iron (III) oxide (Fe2O3) and water (H2O). You do not need to make
Alina [70]
Fe2O3+3H2O->2Fe(OH)3
6 0
3 years ago
Which of the following compounds contains the Lead (II) ion?<br> PbO<br> PbCl4<br> Pb2O<br> Pb2S
KATRIN_1 [288]
<span>PbO Let's look at each of the 4 compounds and see what's needed. PbO. * Oxygen has a valance shell that's missing 2 electrons and wants to get those 2 elections. Lead donates them, so you have a Lead (II) ions. This is a correct choice. PbCl4 * Chlorine wants to grab 1 electron to fill it's valance shell and Lead donates that election. However, there's 4 chlorine atoms and every one of them wants and electron, and lead is donating all 4 of the desired electrons making the Lead (IV) ion. So this is a bad choice. Pb2O * Oxygen still wants 2 electrons and gets them from the lead. But there's 2 lead atoms and each of them donates 1 election making for 2 Lead(I) ions. So this too is a bad choice. Pb2S * Sulfur is in the same column of the periodic table as oxygen and if this compound were to exist would have similar properties as Pb2O and would have Lead(I) ions. So this is a bad choice.</span>
6 0
3 years ago
Read 2 more answers
Which of the following conclusions might a scientist make when fossils of two different species of very similar organisms are fo
nata0808 [166]

Answer:

if its multiple, C and D, if not, C

Explanation:

brainliesttt?

5 0
3 years ago
What new characteristic did John Delton add to the model of the atom BRAINLY WHOEVER GETS IT RIGHT PLEASE IM ON A TIMER
madam [21]
Answer: An atom can join with other kinds of atoms.

PLEASE GIVW ME BEAINLY LOLLL
7 0
3 years ago
How would you classify weather?
STALIN [3.7K]

Answer:

Weather can have many classification, how hot how windy how cold how humid. There are however different classifications for different types of weather. Hope this helps :)

4 0
3 years ago
Other questions:
  • The first pesticides relied on natural chemicals, such as those taken from chrysanthemum flowers. is this true or false
    10·2 answers
  • Use the chart to determine which pairs of atoms are arranged in the correct order according to increasing bond polarity?
    15·2 answers
  • element x is a neutral element and has 39 protons. what element is it and how many electrons does it have? (use the periodic tab
    5·1 answer
  • According to the graph, which of the following substances is least soluble in 100 grams of water at 50°C?
    12·2 answers
  • g A chemist combines 59.9 mL of 0.282 M potassium bromide with 15.4 mL of 0.512 M silver nitrate. (a) How many grams of silver b
    8·1 answer
  • Chromium-48 decays. After 6 half-lives, how much of the original nuclei would remain if we started with 600 g?
    14·1 answer
  • A warm air is rising as cooler air es in to take its place. what is the name for that?​
    5·1 answer
  • Based on how they obtain their food, fungi are _____. A plant-like B animal-like
    8·2 answers
  • What is the molar solubility of nickel(II) sulfide in 0.091 M KCN? For NiS, Ksp = 3.0 × 10 –19; for Ni(CN) 4 2–, Kf = 1.0 × 10 3
    15·1 answer
  • Calculate the enthalpy change for the reaction of hydrogen and chlorine using the bond energies below.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!