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
uranmaximum [27]
2 years ago
9

I need help asap!!!!!!!!

Chemistry
1 answer:
maksim [4K]2 years ago
6 0

Answer:

A

Explanation:

add 22 with the answers like A, 33+22=55

You might be interested in
If mercury (Hg) and oxygen (O2) were reacted to form mercury oxide how many molecules of each reactant and product would be need
dimulka [17.4K]
In order to get HgO you would need 2Hg+1O2=2HgO. Since oxygen is diatomic you need two when it stands alone causing you to need two mercuries to balance out the reactants and the product I hope this helps
5 0
3 years ago
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem, what would
Olin [163]
When reversing a given reaction, we simply change the sign of the standard enthalpy change value. Therefore, the reaction will become:
H₂O → H₂ + 0.5O₂, ΔH = 286kJ
This is because if a certain amount of energy is released when a reaction occurs, the same amount of energy must be supplied for the reaction to occur in the reverse direction.
4 0
3 years ago
Read 2 more answers
What is the formula for the compound by calcium ions and chloride ions?
dimaraw [331]
To find the ratio of the the combination for the ion, write the charge of the cation as the subscript for the anion, and the charge of the anion as the subscript of the cation. This will make the charges effectively cancel and you will be left with a neutral ionic compound. Remember, that an ionic compound is made up of a metal and a nonmetal.
For Ca2+ and Cl-, you will get the neutral compound to be CaCl₂.
8 0
3 years ago
Quick electron emissions are called
Montano1993 [528]
Defined as a phenomenon of liberation of electron from the surface that is stimulated by temperature elevation, radiation, or by strong electric field.
3 0
3 years ago
The speed of light_____ meters per second
xz_007 [3.2K]

☛ <u>299,792,458</u> meters per second.

4 0
3 years ago
Other questions:
  • Which element has the lowest ionization energy?
    6·2 answers
  • Water is a polar solvent. Which of the following will not dissolve in water?
    9·1 answer
  • 6. Identify each element as a metal, metalloid, or nonmetal
    13·1 answer
  • Physics 130 Metal detectors, like the ones used at airports, are activated by a. electric fields. b. magnetic fields. c. electro
    5·1 answer
  • Methanol, CH3OH, has been considered as a possible fuel. Consider its oxidation: 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(g) ΔG =
    9·1 answer
  • Why does a heating curve have horizontal plateaus at certain points during the heating process? What is happening at those point
    15·1 answer
  • (Lewis Dot Structures):
    14·1 answer
  • Story that ends in i have never found such a kind person ever since ​
    9·1 answer
  • What lab equipment do you use to measure the density of gold and how to use it​
    11·1 answer
  • If a frog has 26 chromosomes in its body cells, then it must have ______ cells in its gametes
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!