Which stars have the highest absolute brightness?

padilas [110]

Answer:

A.

Explanation:

A decomposition reaction is when one reactant (the substances to the left of the arrow in the reaction) breaks apart into two or more products (the substances to the right of the arrow).

Because KClO3 is breaking down into KCl and O2, it's a decomposition reaction.

5 0

3 years ago

What does sound travel slowest through? Rock, Steel, Air, or Water?

tatyana61 [14]

Through Air sounds travels approximately 343 meters/second. Why the difference? Because the closer together the molecules in a substance are, the faster sound will travel through that medium.

5 0

4 years ago

Read 2 more answers

Draw the following organic molecules like in the example SEE THE PHOTO

Agata [3.3K]

Answer:

Why do you think people start smoking?

Explain and provide a sample situation to support the given words below. (i will mark as the brainliest if who could answer this asap)

1. Parental Role Model

2. Adolescents Experimentation and Rebellion

3. Depression

4. Limited Education

5. Weight Control

6. Aggressive Marketing

7.Stress

8. Addiction

6 0

3 years ago

What is the chemical formula for CP

strojnjashka [21]

Answer:

C 21 H 38 NCl

Explanation:

I hope this helps...

7 0

3 years ago

A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does this represent in the molecu

PSYCHO15rus [73]

Answer:

$\begin{gathered} \text{Barium = }1.204\times10^{24}\text{ atoms} \\ \text{Oxygen = }1.204\times10^{25}\text{ atoms} \\ \text{Hydrogen = }2.1672\times10^{25}\text{ atoms} \end{gathered}$

Explanation:

Here, we want to know the number of atoms of each of the elements present in the given term

For the Barium, it is only affected by the external 2, so we have 2 Barium atoms only

For oxygen, we have a set in OH and another in H2O. For the OH own, we have 2 oxygen atoms and for the H2O , we have 8 atoms. That makes a total of 10, which when multiplied by the first 2 outside, gives 20

For Hydrogen, we have two sets, one with OH and the other with H2O

For the one with OH, we have 2 while for the one with H2O, we have 16. That makes a total of 18 which when multiplied by 2 gives a total of 36

Thus, we have each of the elements and their counts as follows:

Barium = 2

Oxygen = 20

Hydrogen = 36

Mathematically:

$1\text{ mole = 6.02 }\times10^{23}\text{ atoms}$

Thus:

$\begin{gathered} 2\text{ moles of Ba will contain} \\ 2\times\text{ 6.02 }\times10^{23}\text{ atoms = 1.204}\times10^{24}\text{ atoms} \\ \\ 20\text{ moles of oxygen will contain:} \\ 20\times\text{ 6.02}\times10^{23}\text{ atoms = 1.204}\times10^{25}\text{ atoms} \\ \\ 36\text{ moles of hydrogen will contain} \\ 36\times6.02\times10^{23}\text{ atoms = 2.1672}\times10^{25}\text{ atoms} \end{gathered}$

5 0

2 years ago