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jasenka [17]
3 years ago
7

Please help me it’s my birthday

Chemistry
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

ur answer would be D.)

Explanation:

Hope this helps

also happy birthday

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it holds reactant molecules in a good position for then to react

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when some ionic salts are dissolved in water the reaction is exothermic when others are dissolved in water the reaction is endot
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At which volume of base added was all the acid neutralized?
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im 86% sure

5 0
2 years ago
Identify the major ionic species present in an aqueous solution of nh4clo4.
elena-s [515]
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3 0
3 years ago
Can some please answer these two questions?
alexandr402 [8]

Answer:

1. Mass of potassium (K) = 203.32 g

2. Number of mole of As = 7.53 moles

Explanation:

1. Determination of the mass of potassium (K)

Molar mass of K = 39.1 g/mol

Number of mole of K = 5.2 moles

Mass of K =.?

Mole = mass / Molar mass

5.2 = mass of K / 39.1

Cross multiply

Mass of K = 5.2 × 39.1

Mass of potassium (K) = 203.32 g

2. Determination of the number of mole of Arsenic (As)

Molar mass of As = 74.92 g/mol

Mass of As = 563.9 g

Number of mole of As =.?

Mole = mass /Molar mass

Number of mole of As = 563.9 / 74.92

Number of mole of As = 7.53 moles

8 0
3 years ago
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