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Zanzabum
2 years ago
10

Please help with chem hw

Chemistry
1 answer:
gregori [183]2 years ago
7 0

Answer:.

Explanation:

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A) Identify which one of the particles is <br>I) an anion. <br><br>2) a cation ​
yulyashka [42]

Answer: Particle F is an anion, and particle E is a cation

Explanation:

A particle is a cation if it has more protons  than  electrons.

A particle is an anion if it has more electrons than protons.

Hope it helps :) and let me know if you want me to elaborate.

5 0
2 years ago
Barbara is converting 78°F to degrees Celsius. First, she subtracts 32 from 78. What is the next step?
goldfiish [28.3K]

Answer:

Now she multiplies by 0.5556

Explanation:

7 0
2 years ago
Consider the nuclear equation below. 239/94 Pu—-&gt; X+ 4/2 He. What is X?
Anna007 [38]

Answer:

X = U (Uranium)

Explanation:

Pu-->235/92 U + 4/2 He

4 0
3 years ago
Read 2 more answers
Suppose you need to prepare 136.9 mL of a 0.315 M aqueous solution of NaCl.
Varvara68 [4.7K]

Answer:

2.52 g NaCl

Explanation:

(Step 1)

To find the mass, you first need to find the moles NaCl. This value can be found using the molarity ratio:

Molarity = moles / volume (L)

After you convert mL to L, you can plug the given values into the equation and simplify to find moles.

136.9 mL / 1,000 = 0.1369 L

Molarity = moles / volume

0.315 M = moles / 0.1369 L

0.0431 = moles

(Step 2)

Now, you can use the molar mass to convert moles to grams.

Molar Mass (NaCl): 22.990 g/mol + 35.453 g/mol

Molar Mass (NaCl): 58.443 g/mol

0.0431 moles NaCl           58.443 g
------------------------------  x  -------------------  =  2.52 g NaCl
                                            1 mole

4 0
2 years ago
How many moles are there in 111.7 g of Fe?
Alenkinab [10]

Answer:

2

Explanation:

55.85 grams per mole.

times 2

111.7

6 0
2 years ago
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