Question

Building Vocabulary

Juliette [100K]

Answer:

Explanation:

Building Vocabulary

Match each term with its definition by writing the letter of the correct definition on

the line beside the term in the left column.

5. nucleus b

6. proton f

7. neutron h

8. electron d

9. atomic number g

10. isotopes c

11. mass number a

12. energy level e

a. the sum of protons and neutrons in the nucleus of an

atom

b. the very small center core of an atom

c. atoms of the same element that differ in the number

of neutrons, but have the same number of protons

d. the particle of an atom that moves rapidly in the

space outside the nucleus

e. a specific amount of energy related to the movement

of electrons in atoms

f. the particle of an atom with a positive charge

g. the number of protons in the nucleus of every atom

of an element

h. the particle of an atom that is neutral

-. mass number a.

12. energy level e

5 0

2 years ago

A reaction progress curve has three peaks and two valleys between the peaks. This curve describes a reaction mechanism that invo

katrin [286]

Answer:
<span>A reaction progress curve has three peaks and two valleys between the peaks. This curve describes a reaction mechanism that involves <u>three elementary reactions</u>.

Explanation:
I have drawn the progress curve with three peaks and two valleys. In fact the peaks shows higher energy and valleys show lower energies. So, Let suppose we react A and B. This reaction between A and B results in the formation of C. In this reaction the energies of A and B are less, and during the progress of reaction they cross a transition state of higher energy and forms product C with lower energy which is present at lower valley. This was first reaction. Other two reactions will be followed by conversion of C to D and conversion of D into E.</span>

3 0

3 years ago

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What does promoters in chemical reaction improve

dolphi86 [110]

Answer:

Promoter, in chemistry, substance added to a solid catalyst to improve its performance in a chemical reaction. By itself the promoter has little or no catalytic effect. Some promoters interact with active components of catalysts and thereby alter their chemical effect on the catalyzed substance.

Explanation:

7 0

3 years ago

What is the mass number of an atom or ion with three protons, three neutrons, and three electrons?.

jasenka [17]

Answer:

Its nucleus also contains two neutrons. Since 2+2=4, we know that the mass number of the helium atom is 4. Finally, the helium atom also contains two electrons, since the number of electrons must equal the number of protons.

Explanation:

Name lithium

Symbol Li

Protons 3

Neutron 4

Electrons 3

7 0

3 years ago

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Studies have found that lab coats are typically washed every 1 to 2 weeks. These lab coats often contain harmful germs that can

Artyom0805 [142]

Answer:

The answer is nosocomical.

Explanation:

It was transmitted from a hospitial.

4 0

2 years ago