Answer:
The Bohr model shows the atom as a central nucleus containing protons and neutrons with the electrons in circular orbitals at specific distances from the nucleus (Figure 1). These orbits form electron shells or energy levels, which are a way of visualizing the number of electrons in the various shells
The answer is C4H10. The work is kinda mess so ya
Answer:
5.7 × 10⁻³
Explanation:
3.51 - 2.94 = 0.57
Don't change the scientific notation.
0.57 × 10⁻²
BUT
The "0" is not applicable so move the decimal point to the right by one and subtract the power by one.
5.7 × 10⁻²⁻¹ = 5.7 × 10⁻³
Physical, chemical, physical, chemical, chemical, physical, chemical, chemical, physical, and physical
I think it would be B <em>"A heterogeneous catalyst is being used in the reaction"
</em>This is because MnO2 is a heterogeneous catalyst as it's in a different state than the rest of the reactants and products.
The MnO2 isn't being used as a reactant so it's a catalyst.
MnO2 is not an enzyme
hope that helps
