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
Ber [7]
3 years ago
8

What 3 atoms make up the universe

Chemistry
1 answer:
jek_recluse [69]3 years ago
6 0
Hydrogen, helium and oxygen
You might be interested in
Given that NASA needs 151,200 g of Oxygen (O2) per person for a mission, how many grams of water (H2O) does NASA need to ship to
IgorC [24]

this is so ez,

ok so here what u'll do after u balance the equation:

1. convert grams of oxygen to moles of oxygen.

2. convert moles of oxygen to moles of water

3. convert moles of water to grams of water.

4. bOOm... that's your answer

as follows:

2H2O(l)===>2H2(g)+O2(g)

1. 151200(g)/16(g/mol)=9540 moles of O2

2. 9450 moles of O2 × 2 moles of H2O =18900 moles of H2O

3. 18900 moles of H2O × 10g/mol = 189000g of H2O is required.

6 0
4 years ago
The number of π molecular orbitals in a molecule is always equal to the number of ________. a. p orbitals used to construct the
Dmitrij [34]

The number of π molecular orbitals in a molecule is always equal to the number of p orbitals used to construct the π bonds.

An electron's position and wave-like behavior within a molecule are described by a mathematical function called a molecular orbital. Chemical, as well as physical properties like the probability of locating an electron in a particular area, can be determined using this function.

A molecular orbital would be created when two atomic orbitals cross one other along the internuclear axis. A molecular orbital is created when two atomic orbitals cross each other sideways.

Therefore, the number of π molecular orbitals in a molecule is always equal to the number of p orbitals used to construct the π bonds.

Hence, the correct answer will be option (a).

To know more about molecular orbitals

brainly.com/question/13265432

#SPJ4

6 0
2 years ago
CO2<br> +<br> NaOH<br> &lt;=&gt;<br> NaHCO3<br> Balance
NeTakaya

Answer:

Explanation:

It is balaned

Left side

1 Na

1 C

3 Os

1 H

=========

Right side

1 Na

1 H

1 C

3 Os

5 0
3 years ago
Read 2 more answers
Which are Lewis acids and which are Lewis bases?(a) Mg²⁺(b) OH⁻(c) SiF₄(d) BeCl₂
GrogVix [38]

OH⁻, BeCl₂ and SiF₄ are Lewis acids whereas, Mg²⁺ is a Lewis base.

<h3>What is a Lewis acid-base reaction?</h3>
  • According to the Lewis theory of acid-base reactions, acids accept pairs of electrons and bases donate pairs of electrons.
  • Any substance like H+ ion, which is capable of accepting a pair of nonbonding electrons or an electron-pair acceptor is known as a Lewis acid.
  • Any substance, like the OH- ion, that is capable of donating a pair of nonbonding electrons or an electron-pair donor is a Lewis base.
  • Here OH⁻, BeCl₂ and SiF₄ are electron deficient whereas, Mg²⁺ donates the electrons to other species present in the reaction.
  • From the Lewis theory, with no change in the oxidation numbers of any atoms, acids react with bases to share a pair of electrons.

To learn more about Lewis acid-base reactions: brainly.com/question/14861040  

#SPJ4                                                                                              

5 0
2 years ago
Write the chemical equation for this reaction. Use the picture I provide!
Lesechka [4]

Answer:

H2O

H2O

Explanation:

because the are only two hydrogen that can react to Oxygen

3 0
3 years ago
Other questions:
  • Each glucose molecule consists only of carbon, hydrogen, and oxygen atoms. If each molecule contains 53.3% oxygen and 6.7% hydro
    12·1 answer
  • Identify the following statements as either True or False.
    5·1 answer
  • Nickel has the chemical symbol Ni and the atomic number 28. How many protons, neutrons, and electrons would be found in an atom
    12·2 answers
  • Calculate the standard enthalpy change of formation of CHA given that the standard enthalpies change of combustion of methane, g
    8·1 answer
  • What is a beta particle ?
    10·2 answers
  • Which of the following are products of the light-dependent reactions of photosynthesis that are utilized in the light-independen
    13·1 answer
  • Which element was first discovered on the sun?
    9·1 answer
  • How do you write balance equations Fe2 S3+O2-Fe2O3+SO2
    7·1 answer
  • La columna de la izquierda corresponde a los tipos de sales y la columna derecha a los tipos de fórmula que presentan. Relaciona
    6·1 answer
  • If 75.6 grams of iron has a Volume of 250 ml. What is the density of Iron?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!