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
REY [17]
3 years ago
5

Methane is approximately 23 times more powerful than carbon dioxide as a greenhouse gas. Which are significant sources of methan

e emissions
Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Answer:

anthropogenic sources like landfills, agricultural activities,coal mining and combustion and some sources are natural ones

You might be interested in
Chemical equation below demonstrate that?<br> NEED HELP ASAP
zmey [24]

(a) Matter cannot be created and destroyed by a chemical reaction.

Explanation:

(a) Matter cannot be created and destroyed by a chemical reaction. (correct)

The number and type of atoms entering the chemical reaction are the same with the number and type of atoms leaving the chemical reaction.

(b) The reactants are the same substance as the products. (wrong)

You may see in the reaction that we have as reactants zinc and hydrochloric acid which react to form the products, zinc chloride and hydrogen.

(c) The number of molecules in the reactants are equal to the number of molecules in the products. (wrong)

As reactants we have 2 hydrochloric acid (HCl) molecules and as products 1  hydrogen (H₂) molecule. Zn is a metal and ZnCl is a salt.

(d) The atoms on the reactants side are changed into different atoms on the products side. (wrong)

The number and type of atoms entering the chemical reaction are the same with the number and type of atoms leaving the chemical reaction.

Learn more about:

balancing chemical equations

brainly.com/question/13695436

#learnwithBrainly

7 0
2 years ago
What is the anion found in phosphoric acid?
Hoochie [10]
...contains the sulfate anion (SO42−) and is called sulfuric acid; H3PO4<span> contains the phosphate anion (PO43−) and is called phosphoric acid; and HC2H3O2, which contains the acetate ion (C2H3O2−), is c... Phosphoric acid (</span>H3PO4<span>) has three hydrogen atoms, all of which are replaceable by a metal.</span>
7 0
3 years ago
Read 2 more answers
If element b has 4 prtons how many would an atom of element c have
kirill [66]

Element C will have 5 protons

8 0
3 years ago
I REALLY NEED HELP THIS IS DUE TOMORROW AND IM GONNA FAIL IF I DONT DO IT SO I NEED HELP
deff fn [24]

Answer:

Each oxygen atom is connected to the central O atom with 2 covalent bonds.

Explanation:

Oxygen atoms are connected by two covalent bonds in the oxygen molecule from the Lewis structure, we see that the bond order for O2 is 2 (a double bond) this is clearly seen in the image attached. There are no resonance structures for the oxygen molecule since there are no partial bonds in the molecule, only the two covalent bonds present.

This structure of oxygen shown in the image is its only structure, showing the covalent bonds formed and other non bonding electrons present in the molecule. The octet rule is followed in drawing the structure. Each oxygen atom possesses an octet of electrons on its outermost shell.

Another explanation

A Lewis structure is also called a dot electron structure. A Lewis structure represents all the valence electrons on atoms in a molecule as dots. Lewis structures can be used to represent molecules in which the central atom obeys the octet rule as well as molecules whose central atom does not obey the octet rule.

Sometimes, one Lewis structure does not suffice in explaining the observed properties of a given chemical specie. In this case, we evoke the idea that the actual structure of the chemical specie lies somewhere between a limited number of bonding extremes called resonance or canonical structures.

The canonical structure of the carbonate ion as well as the lewis structure of phosphine is shown in the image attached to this answer.

Explanation:

5 0
2 years ago
Read 2 more answers
Which of the following is true about natural selection?
sammy [17]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ The correct answer choice is C. Natural selection usually causes a species to change gradually.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

4 0
3 years ago
Other questions:
  • The enthalpy of a reaction can be measured using a _____. barometer chronometer odometer calorimeter
    7·2 answers
  • This is a Science Question:
    14·1 answer
  • 1. If a student needed to calculate the density of irregularly shaped metal beads give a brief explanation of the best way to do
    12·1 answer
  • Gas exchange... (choose all correct)
    15·1 answer
  • Why clouds look white?​
    8·1 answer
  • How many moles are contained in 3.131 × 1024 particles?
    8·1 answer
  • Please answer asap MUCH NEEDED!!
    15·1 answer
  • Be able to describe the relationship between Freedom of Movement and phase change.
    12·1 answer
  • An element belonging tothe alkaline earth family would be expected to have?
    10·1 answer
  • Name the phase change in each of these events: (a) A diamond film forms on a surface from gaseous carbon atoms in a vacuum.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!