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3 years ago

Help plz i need it my mom is mad at me for not knowing this

Chemistry

1 answer:

ohaa [14]3 years ago

5 0

Lol ok ill help the answer is true and she SHOULDNT be mad at you

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What is the name of this hydrocarbon? <br> A: propane<br> B: pentene<br> C: butene<br> D: ethane

avanturin [10]

I don't think it's any of the above. Because there is two double carbon bonds and it belongs to an alkene, it should be an ethene molecule.

3 0

3 years ago

Read 2 more answers

e average bond order is the number of bonds between two atoms taking into account resonance. Draw a Lewis structure for ozone an

sineoko [7]

Answer:

See Explanation

Explanation:

Resonance is a valence bond terminology which is used to describe a situation in which a single structure is not able to fully describe the nature of bonding in a molecule.

In such cases, we invoke more than one structure. Each structure contributes significantly to our understanding of the nature of bonding in the molecule under consideration and these structures are called canonical or resonance structures.

The real structure of the molecule is somewhere in between these structures - a resonance hybrid.

For ozone, two equivalent structures can be used to describe the bonding in the molecule. These structures are equivalent as shown in the mage attached. We can see from these structures that the bond order in ozone is 1.5(one and half bonds)

5 0

3 years ago

Given that NASA needs 151,200 g of Oxygen (O2) per person for a mission, how many grams of water (H2O) does NASA need to ship to

IgorC [24]

this is so ez,

ok so here what u'll do after u balance the equation:

1. convert grams of oxygen to moles of oxygen.

2. convert moles of oxygen to moles of water

3. convert moles of water to grams of water.

4. bOOm... that's your answer

as follows:

2H2O(l)===>2H2(g)+O2(g)

1. 151200(g)/16(g/mol)=9540 moles of O2

2. 9450 moles of O2 × 2 moles of H2O =18900 moles of H2O

3. 18900 moles of H2O × 10g/mol = 189000g of H2O is required.

6 0

4 years ago

A 2 kg cat is stuck in a tree 10 m above the ground. How much GPE does it have?

Dovator [93]

Answer:

196J, but C. at 200 J comes close.

Explanation:

Potential energy due to gravity is given by:

PEgrav = mass • g • height

where g is the acceleration due to gravity. We'll use 9.8 N/kg (on Earth).

PEgrav = mass • g • height

PEgrav = (2 kg) • (9.8 N/kg) • (10 m)

PEgrav = 196 N*m

1 N*m = 1 Joule

PEgrav = 196 J

C. at 200 J comes close. The solution probably used a value of g equal to 10 N/kg)

3 0

2 years ago

The fact that matter is not created or destroyed in any chemical or physical change is called the

BartSMP [9]

Answer:

Law of Conservation of Mass.

Is that Right?

8 0

3 years ago