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frozen [14]
3 years ago
14

¿Qué es una fuente de luz secundaria?

Chemistry
2 answers:
faust18 [17]3 years ago
4 0

Answer:

Las fuentes de luz secundarias son aquellas que reflejan la luz que produce otra fuente. Por ejemplo: la luz de la luna (refleja la luz que produce el Sol), un espejo.

Explanation:

garik1379 [7]3 years ago
3 0

Answer:

Las fuentes secundarias son testimonios de segunda mano elaborados con posterioridad a los hechos ocurridos y basados en la información de las fuentes primarias, por ejemplo: libros y revistas, películas, video-documentales, series televisivas, textos escolares y mapas temáticos.

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“NH4VO3” is a... <br><br> Symbol <br><br><br> Name <br><br><br> Chemical formula
shepuryov [24]

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its a chemical formula, it has numbers and symbols

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3 years ago
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Calculate the pH when the following quantities of 0.100 M NaOH solution have been added to 50.0 mL of 0.100 M HCl solution: (a)
yuradex [85]

Answer:

!

Explanation:

ned help too^^

7 0
3 years ago
What volume will 0.405 g of krypton gas occupy at STP?
Rufina [12.5K]

Answer:

The answer to your question is V = 0.108 L or 108 ml

Explanation:

Data

Volume = ?

mass = 0.405 g

Temperature = 273°K

Pressure = 1 atm

Process

1.- Convert mass of Kr to moles

                  83.8 g of Kr -------------------- 1 mol

                     0.405 g     -------------------  x

                     x = (0.405 x 1) / 83.8

                     x = 0.0048 moles

2.- Use the Ideal gas law to solve this problem

                   PV = nRT

- Solve for V

                      V = nRT / P

- Substitution

                      V = (0.0048)(0.082)(273) / 1

- Simplification

                       V = 0.108 / 1

- Result

                       V = 0.108 L

8 0
3 years ago
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3. During this lesson, you observed a chemical reaction between ammonium hydroxide and iron acetate. Describe the properties of
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Wish I can help, but I don't take chemistry. :(
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3 years ago
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Need help with this chem question thanks
IRISSAK [1]

Answer:

The answer to your question is letter A.

Explanation:

Isomers are molecules that have the same molecular formula but have a different structure. The molecule from which are looking an isomer has 5 carbons and 1 double bond. Then we need to look for another molecule with these components.

A.- This molecule has 5 carbons and 1 double bond, This structure is an isomer of the first one.

B.- This molecule has 3 carbons and 1 double bond, it's not an isomer of the first structure.

C. This molecule has 4 carbons and 1 triple bonds, it's not an isomer of the first structure.

D. This molecule has 5 carbons but it doesn't have any double bond, then it's not an isomer of the first structure.

5 0
3 years ago
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