How many protons, neutrons, and

Chemistry

1 answer:

Alexus [3.1K]1 year ago

7 0

Your answer is 4 protons 4 electrons and 5 neutrons

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Calculate the calories of heat required to melt 35.0 g of ice.

agasfer [191]

Answer:

35.0g of ice at 0 degrees

Explanation:

7 0

2 years ago

What is the [OH-]if the pH of a solution 10.62

Lerok [7]

As we know,

pH + pOH = 14
Or,
pOH = 14 - pH

Putting Value of pH,

pOH = 14 - 10.62

pOH = 3.38

pOH is converted into [OH⁻] as follow,

[OH⁻] = 10⁻pOH ∴ -pOH is in power, 10 means antilog
press shift and click log button
[OH⁻] = 10⁻³°³⁸

[OH⁻] = 0.0004168

[OH⁻] = 4.16 × 10⁻⁴

5 0

2 years ago

Suppose a current of is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for s

WARRIOR [948]

The given question is incomplete. The complete question is:

Suppose a current of 0.920 A is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 47.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell.

Answer: 0.0484 g

Explanation:

$Q=I\times t$