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denis-greek [22]
1 year ago
14

Determine the group and the period in which each of the following elements is

Chemistry
1 answer:
kompoz [17]1 year ago
5 0

This element is called Neon and it is part of the group known as Noble gases or group 8 and it is in period 2

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Definition of instantaneous speed
Sindrei [870]

Answer:

Explanation:

The instantaneous speed is the speed of an object at a particular moment in time. And if you include the direction with that speed, you get the instantaneous velocity.

3 0
2 years ago
three molecules of oxygen react with four molecules of hydrogen to produce water molecules write a balanced chemical equation
mixer [17]

Answer:

ExpC

H

4

+  

2

O

2

 

→

 

C

O

2

+  

2

H

2

O

This is the balanced reaction equation for the combustion of methane.

Explanation:

The Law of Conservation of Mass basically states that matter can neither be created nor destroyed. As such, we must be able to show this in our chemical reaction equations.

If you look at the equation above, you'll see an arrow that separates the reaction equation into two parts. This represents the direction of the reaction.

To the left of the arrow, we have our reactants.

To the right of the arrow, we have our products.

The quantity of each individual element in the left must equal the quantity of each individual element in the right.

So if you look below, you'll see the unbalanced equation, and I'll try to explain how to balance the reaction.

C

H

4

+  

O

2

 

→

 

C

O

2

+  

H

2

O

Our reactants in this equation are  

C

H

4

and  

O

2

.

Our next step is to break these down into individual atoms.

We have:

1 C atom, 4 H atoms & 2 O atoms.

If you're confused by this, look to see the little number to the bottom right of each element, the subscript, and it tells you how many of each atom are in the molecule. Make sense?

Now we look to the other side of the equation.

Here we see our products are  

C

O

2

+  

H

2

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Again, we break these down into individual atoms again.

We have:

1 C atom, 2 H atom, 3 O atom

6 0
2 years ago
What is an isotope ? And how do we use it ?
Sergeu [11.5K]
Somewhat of the same element, have same amount of protons but different number of neutrons. <span />
3 0
3 years ago
its not a question but i wanted to tell you guys that if you guyz like my answers then please don't forget to give like and foll
Kruka [31]

Answer:

thank you for this oibnki

5 0
3 years ago
Read 2 more answers
Why is cellular respiration important?
8_murik_8 [283]
A because b is for photosynthesis
5 0
3 years ago
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