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aliina [53]
3 years ago
14

explain why the hydrogen atoms in a hydrogen gas molecule form nonpolar covalent bonds but oxygen and hydrogen atoms in water mo

lecules form polar covalent bonds
Chemistry
1 answer:
marishachu [46]3 years ago
7 0

Answer:

Explanation:

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards itself and becomes partial negative while the other atom becomes partial positive.

Non polar covalent bond:

It is the bond where both bonded atoms share the pair of electron equally.

For example:

Hydrogen gas (H₂) is non polar covalent compound because the electronegativity of both bonded atoms are same. No poles are created that's why this is non polar covalent compound.

Polar covalent bond:

It is the bond where both bonded atoms share the pair of electron unequally.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive and bond is polar.

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Burning coal produces which type of gas?
vovikov84 [41]

Answer:

carbon dioxide

Explanation:

carbon dioxide is the primary greenhouse gas produced by burning fossil fuels like coal and oil

5 0
3 years ago
Read 2 more answers
Think about the animals in an arctic ecosystem. How would those animals adapt over time if global temperatures rise over the nex
brilliants [131]

Given the fact that we are seeing a rise in the temperature of the globe, the artic animals in that ecosystem must adapt by a reduction in the rate of metabolism.

<h3>What is global warming?</h3>

Several evidences continue to emerge that the temperature of the earth have continued to increase and this is largely due to the fact that since the turn of the twentieth century and the rise of industrialization, there have been a rise in the emission of the carbon dioxide and other green house gases into the environment. As a result of this, the temperature of the earth has continued to rise steadily leading to the melting of the ice cover and the destruction of ecosystems that are found around the artic regions of the earth.

Now, we know that an organism is able to adapt to the changes that occur in its habitat by being able to alter some of its structure and function.

Given that the organisms that live in the artic are adapted to cold regions and low temperatures, the metabolic rate of the organisms is high in order to produce heat.

As a result of the rise in global temperatures, the organisms would have to reduce their rate of metabolism.

Learn more about global warming:brainly.com/question/12908180

#SPJ1

5 0
1 year ago
What is a chemical change?
PIT_PIT [208]
A chemical change is a change that results in new chemicals (the reactants underwent a chemical change which resulted in new products). 
an example of a chemical change is the burning of paper. An example of something that is not a chemical change is the melting of ice.
4 0
3 years ago
How many grams of FeO would be needed to make 234.2 grams of Fe in the chemical reaction 4FeO = Fe3O4 + Fe? Show your work.
Scorpion4ik [409]

The grams  of FeO  that would  be needed to make 234.2 grams  of Fe  is

1204.42 grams


<u><em> calculation</em></u>

4 FeO → Fe₃O₄ +Fe

Step 1: find the  moles  of  fe

moles  =  mass /molar mass

from periodic table the  molar mass of Fe  = 56 g/mol

moles = 234.2 g/56 g/mol = 4.182  moles


Step 2: use  the mole ratio to determine the moles of  FeO

FeO: Fe  is 4:1 therefore the  moles of FeO  =4.182 moles  x4 =16.728  moles


Step 3:   find  the mass of FeO

mass = moles  x molar  mass

The molar mass of FeO = 56 +16 = 72 g /mol

mass  = 16.728 moles  x 72 g/mol= 1204.42 grams

4 0
3 years ago
Read 2 more answers
How many moles of co2 are produced when 35.0 mol c2h2 react completely?
Setler [38]

The balanced chemical reaction will be:

C2H2 + 3/2O2 = 2CO2 +H2O

We are given the amount of C2H2 to be burned. This will be our starting point.

<span>35.0 mol C2H2 ( 2 mol CO2/1 mol C2H2) = 70.0 mol O2</span>

<span>Therefore, the CO2 produced is 70.0 moles.</span>

<span>
</span>

7 0
3 years ago
Read 2 more answers
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