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wel
3 years ago
12

An atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surroundin

g the nucleus is -9. Which statement correctly describes this atom?
This atom has nine clouds.
This atom has nine electrons.
This atom has nine neutrons.
This atom has nine protons.
Chemistry
1 answer:
Studentka2010 [4]3 years ago
5 0

Answer:

This atom has nine electrons

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The cis and trans geometric isomers of a compound have different chemical and physical properties. Draw the structure of the geo
frutty [35]

<u>Answer:</u> The structure of the geometrical isomers are attached below.

<u>Explanation:</u>

Cis- and Trans- isomers are the geometrical isomers which have same chemical formula but different structural formula

According to CIP rule, the groups on the doubly bonded carbon atoms are given priorities based on the the atomic masses of first connected atom.

If the highest priority groups are on the same side, it is known as cis-form and if the highest priority groups are on opposite side, it is known as trans-form.

We are given a chemical compound, which is 2-pentene.

In this the highest priority groups are methyl and ethyl groups.

When the groups are on the same side, it forms cis-form and when the groups are on the opposite side, it forms trans-form

The structure of the geometrical isomers are attached below.

7 0
3 years ago
Fill in the coefficients that will balance the following reaction:
Burka [1]

Answer:

a0 = 2

a1= 9

a2= 6

a3= 8

Explanation:

The equation for the reaction is;

C3H7OH + O2 → CO2 + H2O

To balance the chemical equation we introduce coefficients;

Therefore the balanced chemical equation will be;

2C3H7OH + 9O2 → 6CO2 + 8H2O

Chemical equations are balanced to ensure the law of conservation of mass is obeyed, such that the mass of the reactants is equivalent to that of the products.

3 0
2 years ago
Which type of reaction is occurring during a fireworks show? How do you know?
Natasha2012 [34]

Answer:

It is an exothermic reaction. Heat must be added to light the fuses of the fireworks

Explanation:

I learned this in high school chemistry.

8 0
2 years ago
14. The following are a list of the four parts of John Dalton's atomic theory Indicate which of
Damm [24]

Answer:

1

all matter is made of tiny particles called atom

5 0
2 years ago
For each of the following cases, identify the order with respect to the reactant, A. Case (A ----&gt; product)
damaskus [11]

Answer:

The answers to the question are

1. 2nd and above order order

2. 2nd order

3. 1/2 order

4.  1st order

5. 0 order

Explanation:

We have \frac{N}{N_{0} } = e^{-\lambda t}

1. For nth order reaction half life  t_{\frac{1}{2} } ∝ \frac{1}{[A_{0} ]^{n-1} }

Therefore for a 0 order reaction increasing concentration of the reactant there will increase   t_{\frac{1}{2} }

First order reaction    is independent  [A₀].

Second order reaction  [A₀] decrease,    increase.

Similarly for a  third order reaction

1. 2nd order

2. 2nd order reaction

3. Order of reaction is 1/2.

4. 1st order reaction.

5. Zero order reaction.

5 0
3 years ago
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