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
Sliva [168]
2 years ago
10

Count the atoms 2Ca(H2PO4)3 How many O atoms are in the above equation?

Chemistry
1 answer:
Helga [31]2 years ago
7 0
I think they are 3 atoms
You might be interested in
Propane can be turned into hydrogen by the two-step reforming process. In the first step, propane and water react to form carbon
Vsevolod [243]

Answer:

The net chemical equation is: 6 H2O(g) + C3H8(g) → 10 H2(g) + 3 CO2(g)

Explanation:

First equation:

The reactants propane and water  react to form the products CO and H2

C3H8(g) + 3H2O(g) → 3CO(g) + 7H2(g)

Second equation:

The products CO and H2 will react

CO(g) + H2O(g) → H2(g) + CO2(g)

We should multiply the equation by 3 (to equal the products of the first equation)

3CO(g) + 3H2O(g) → 3H2(g) + 3CO2(g)

Add the second to the first equation:

C3H8(g) + 3 H2O(g) + 3 CO(g) + 3 H2O(g) → 3 H2(g) + 3CO2(g) + 3 CO(g) + 7 H2(g)

The net chemical equation is: 6 H2O(g) + C3H8(g) → 10 H2(g) + 3 CO2(g)

3 0
2 years ago
What is the mass of 1.25 L of ammonia gas at STP
Alex73 [517]

Answer:

mass 1.25 Liters NH₃(gas) = 0.949 grams (3 sig-figs)

Explanation:

At STP (Standard Temperature-Pressure conditions => 0°C(=273K) and 1atm pressure,  1 mole <u>any</u> gas will occupy 22.4 Liters.

So, given 1.25 Liters ammonia gas at STP, convert to moles then multiply by formula wt. (17g/mole gives mass of NH₃.

moles NH₃(gas) = 1.25L NH₃(gas)/22.4L NH₄(gas)· NH₃(gas)mole⁻¹ = 0.0558 mole NH₃(gas).  

Converting to grams NH₃(gas) = 0.0558 mole NH₃(gas) x 17 g·mol⁻¹ = 0.949 grams NH₃(gas).

7 0
2 years ago
A
Luden [163]

Answer:

<h2>D</h2>

Explanation:

A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.

A pure chemical compound is a chemical substance that is composed of a particular set of molecules or ions that are chemically bonded. Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound.

7 0
2 years ago
Read 2 more answers
Consider this reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g).
telo118 [61]
The rate<span> of a </span>reaction increases<span> if the temperature is increased, the concentration of a dissolved reactant is increased and the pressure of a </span>reacting<span> gas is increased. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
4 0
3 years ago
Read 2 more answers
After completing 10 years of experimentation, a scientist reports a new scientific law about the movement of sand on beaches. Ho
MrRissso [65]
Scientific laws are not proven, rather they are assumed to be true by the results of other experiments. Basically, this scientist is saying that he has proven a scientific law, which is not possible. He most likely has proven a scientific theory if he has proven something.
Hope that helps!
3 0
3 years ago
Read 2 more answers
Other questions:
  • What type of learner am i
    8·2 answers
  • Which equation would represent the neutralization of sulfuric acid that was spilled on a base
    14·1 answer
  • Explain why raising the temperature of a liquid would speed up diffusion
    12·1 answer
  • Which solid is the most suitable in the space elevator cable
    7·1 answer
  • An atom containing 25 protons, 30 neutrons and 25 electrons will have an atomic mass of:
    10·1 answer
  • What are the elements and number of atoms in the compound c6h12o6?
    5·1 answer
  • Explain why the acid-catalyzed dehydration of an alcohol is a reversible reaction, whereas the base-promoted dehydrohalogenation
    5·1 answer
  • What is anything that has mass and volume
    9·2 answers
  • 1 liter is equal to milliliters​
    13·1 answer
  • 1 Condensation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!