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
sergiy2304 [10]
3 years ago
15

Why would the federal government and city government find it necessary regulate water standard?

Chemistry
1 answer:
Helga [31]3 years ago
4 0
They do this so that when you drink it or use it the contaminates that used to be in it dont make you sick

You might be interested in
What is the dependent and independent variable
sukhopar [10]
An independent variable is the variable changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
5 0
3 years ago
Atoms of metallic elements tend to...
lara31 [8.8K]

The answer is: lose electrons and form positive ions.

Most metals have strong metallic bond, because of strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.

The ionization energy (Ei) is the minimum amount of energy required to remove the valence electron, when element lose electrons, oxidation number of element grows (oxidation process).

For example, magnesium has atomic number 12, which means it has 12 protons and 12 electrons. It lost two electrons to form magnesium cation (Mg²⁺) with stable electron configuration like closest noble gas neon (Ne) with 10 electrons.  

Electron configuration of magnesium ion: ₁₂Mg²⁺ 1s² 2s² 2p⁶.  

3 0
3 years ago
How does a sedimentary rock turn into a metamorphic rock?
Korvikt [17]
1. weathering and erosion on Earth's surface is always breaking Rock down 2. Transport 3. Deposition 4. Compaction and cementation. 5. Metamorphism 6. rock melt
6 0
3 years ago
Determine the equilibrium constant, Kp, for the following reaction, by using the two reference equations below: 2 NO(g) + O2(g)
klio [65]

Answer:

Kp=3.07x10^6

Explanation:

Hello,

In this case, by knowing the given reference reactions, one could rearrange them as follows:

2 NO(g) \leftrightarrow N_2(g) + O_2(g); Kp_2 = \frac{1}{2.3 x 10^{-19}}=4.35x10^{18}

N_2(g) + 2O_2(g) \leftrightarrow 2NO_2(g);Kp_3=(8.4x10^{-7})^2=7.056x10^{-13}

Subsequently, to obtain the main reaction, we add the aforementioned reference rearranged reactions as shown below (just as reference):

2NO(g)+N_2(g)+2O_2\leftrightarrow 2NO_2(g)+N_2+O_2

Consequently, the equilibrium constant is computed as:

Kp=\frac{[N_2][O_2]}{[NO]^2} * \frac{[NO_2]^2}{[N_2][O_2]^2} =Kp_2*Kp_3=4.35x10^{18}*7.056x10^{-13}=3.07x10^6

Best regards.

8 0
3 years ago
The rare earth elements include A. the actinide series and the alkaline earth metals. B. the alkali metals and the transition me
kolezko [41]
The answer is A because Alkaline are gases in earth's atmosphere <span />
8 0
3 years ago
Other questions:
  • Which generalized equation represents a single displacement reaction?
    5·1 answer
  • (r)-3-bromo-2,3-dimethylpentane will undergo a substitution reaction in the presence of methanol when heat is applied. complete
    6·1 answer
  • Ethanol has heat specific heat of 2.5 j/g⋅°c, how much heat is released when 12 g of ethanol is cooled from 38.5 °c to 36.7 °c?
    7·2 answers
  • The size of an organism is most likely determined by...?
    14·1 answer
  • In which orbitals would the valence electrons for carbon (C) be placed?
    12·2 answers
  • Which unit can be used to express solution concentration?
    13·1 answer
  • Conduct metric Titration of H_2(SO_4) and Ba(OH)_2 Write an equation (including states of matter) for the reaction between H_2(S
    5·1 answer
  • The electron configuration can be also be represented by writing the symbol for the occupied subshell and adding a superscript t
    13·1 answer
  • PLEASE HELP!!
    10·1 answer
  • what is the suggested weight of the sample that should be disssolved in the beaker before it is transferred to the NMR tube
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!