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Flauer [41]
3 years ago
8

How do we find mass number of elements in chemistry ?​

Chemistry
1 answer:
sukhopar [10]3 years ago
5 0

Answer: Atomic number, atomic mass, and relative atomic mass

Explanation:

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Please help I will give brainliest.
iris [78.8K]

Answer:

the second one looks like it so I picked the second one

8 0
3 years ago
Mass = 35g Volume = 7cm³ What is the Density?​
gizmo_the_mogwai [7]

Answer:

The answer is

<h2>5.0 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 35 g

volume = 7 cm³

The density is

density =  \frac{35}{7}  \\

We have the final answer as

<h3>5.0 g/cm³</h3>

Hope this helps you

7 0
3 years ago
What are the spectator ions in the equation below? Select all that apply.
Licemer1 [7]

Answer:

H+ and NO3- ions

Explanation:

The Pb²+ ions react with the SO4²‐ ions to form a solid precipitate, i.e. they bond together and undergo a phase change;

On the contrary, the H+ and NO3- ions are aqueous ions before the reaction and the same after the reaction, i.e. they don't change;

Hence, the H+ and NO3- ions are spectator ions

The way to do this type of question is to consider what changes and what doesn't, look at phase changes and oxidation state changes

7 0
2 years ago
What do scientists mean when they refer to population
Luden [163]

population is the number of species living in a given area if this is regarding biology or earth studies :)

8 0
2 years ago
Read 2 more answers
How might it benefit forensic scientists to smaller subcategories for fingerprints?
Inga [223]

Answer: Once the fingerprints are captured and described, judicial physicists use a categorization structure to label the ruling class. The three elementary mark on finger patterns is Whorl, Arch, and Loop. There are more intricate categorization methods that further decay the pattern to plain arches or make camp arches. Loops grant permission be branching or ulnar.

4 0
2 years ago
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