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Artyom0805 [142]
3 years ago
9

WILL MARK BRAINLIST!!! only for correct answer NEED CORRECT ANSWER ASAPPP

Chemistry
1 answer:
lilavasa [31]3 years ago
7 0

Answer:

D. 4

Explanation:

Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.

Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.

Hence, from the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.

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What isapplied in case where the base is not a OH donator
blagie [28]
It will received an H+. I’m not sure if that answers your question correctly
8 0
3 years ago
Select all the correct answers.
pantera1 [17]

Answer:

The correct answer is the charges of the positive and negative copper ions cancel each other out.

Explanation:

A copper metal having no net charge means that it is a neutral atom. A neutral atom means that total number of protons is equal to the total number of electrons.

6 0
3 years ago
Calculate the mass in mg of the aspirin tablet that contains 5.0 grains of aspirin . Assume 1 pound contains 7000 grains.
Rzqust [24]

Answer:

323.99 mg

Explanation:

We need to find the mass of the aspirin tablet that contains 5.0 grains of aspirin.

1 pound = 7000 grains

1\ \text{grain}=\dfrac{1}{7000}\ \text{pounds}

5\ \text{grain}=\dfrac{1}{7000}\times 5\ \text{pounds}\\\\=\dfrac{1}{1400}\ \text{pounds}

We know that, 1 pound = 453.592 grams

Also, 1 pound = 453592 mg

\dfrac{1}{1400}\ \text{pounds}=\dfrac{1}{1400}\times 453592\ mg\\\\=323.99\ \text{mg}

Hence, 4 grains of aspirin contains 323.99 mg.

4 0
3 years ago
Please help me?!!!!!!!
SCORPION-xisa [38]

Answer:

this is true! good luck!

4 0
3 years ago
Read 2 more answers
LC Chemistry I v18 (GS) / Module 01: Matter
daser333 [38]

Answer:

Burning Paper

Explanation:

Burning Paper is an example of a chemical change because;

-  A new substance called  ''Ash'' is formed.

- It is an irreversible reaction.

3 0
3 years ago
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