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Dafna11 [192]
4 years ago
15

Write a word equation and a balanced symbol equation for the combustion of hydrogen.

Chemistry
1 answer:
liq [111]4 years ago
8 0

Answer:

The balanced equation is: 2H2 (g) + O2 (g) -> 2H2O (g).

Explanation:

So to balance the equation, you have to make sure there are the same number of hydrogen and oxygen atoms on both sides of the equation.

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19) What is the molarity of a KOH solution if 200 ml of the solution contains 0.6 moles KOH?
zloy xaker [14]

Answer: 3M

Explanation: Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute KOH = 0.6 moles

V_s = volume of solution in ml= 200 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{0.6moles\times 1000}{200ml}=3mole/L

Therefore, the molarity of solution will be 3M.

8 0
3 years ago
Read 2 more answers
Is the H¬O bond in water nonpolar covalent, polar covalent, or ionic? Define each term, and explain your choice.
nydimaria [60]

Like hydrogen fluoride (HF), water (H2O) is a polar covalent molecule.

The electron pair in a non-polar covalent bond is shared equally by the two bonded atoms, but in a polar covalent bond, the electron pair is shared unequally by the two bonded atoms. Differences in electronegativity are what lead to polar bonding.

The entire transfer of valence electron(s) between atoms is referred to as an ionic bond. It is a kind of chemical connection that produces two ions with opposing charges. In ionic bonding, the nonmetal takes the lost electrons to form a negatively charged anion while the metal loses them to become a positively charged cation.

Learn more about Polar covalent bond here-

brainly.com/question/1646189

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5 0
2 years ago
Based on their electronegativities, you would expect ____ elements to pull on electrons more strongly than ______ elements.
sveta [45]

Answer:

I interpret the answers as being nonmetallic and metallic.

Explanation:

Nonmetals are in groups 14 - 18. Electronegativity is referred to as the want to attract electrons to an atom. Noble gases (group 18) have eight valence electrons in their outer subshells and are therefore atomically stable. Elements with only 7 valence electrons are very electronegative because they desire to obtain an electron to reach stability more than a group 2 element would (they are more likely to drop electrons by giving away in order to reach atomic stability of a group 18 element). This coincides with electron configuration, which is a very lengthy topic to cover. You can conduct more research if you would need it.

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3 years ago
Is chromium sediment, igneous, or Metamorphic Rock?
Irina18 [472]
Http://geology.com/minerals/chromite.shtml
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3 years ago
Please answer question 4 and the extension question<br><br> Thank you!!!
castortr0y [4]
Yes iron can conduct heat in fact it comes under the category of good conductors <span>machinery and any thing that is made out of the iron will conduct the
i hop this works ^-^</span>
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3 years ago
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