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nata0808 [166]
3 years ago
6

. If 69.15% exists as 63Cu with an atomic mass of 62.92, then what is the atomic mass of the second isotope?

Chemistry
1 answer:
Alexeev081 [22]3 years ago
8 0

Answer: 64.8

Explanation:Please see attachment for explanation

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A scientist made careful measurements of the pressure and temperature of many different gases. Based on these measurements, he c
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Answer:

c. law

Explanation:

Law -

It is type of statement , which helps to explain certain observations , in the form of mathematical relationship or verbal statements , is referred as a law .

Law is a widely accepted information , which can get altered by some new inventions or exception.

A law is stated in words as well as in the form of some mathematical relationships or equations.

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3 years ago
The element oxygen has _____ valence electrons. (Input only a whole number, such as 7.)
kipiarov [429]
Remark
The short Answer is 6. That's why the ion has a charge of minus 2. Oxygen is doing it's best to have its outer ring have 8 electrons which is the number of outer electrons contained in the outer ring of the Noble Gas Neon.

Answer 6.
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3 years ago
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Why is a changing ocean temperature of only one or 2 degrees so concerning?
gregori [183]
<span>One degree Celsius indicates the same temperature change as one </span>
7 0
3 years ago
When 3.0g of magnesium is burnt in 2.00g of oxygen, 5.00g of magnesium oxide is produced. What mass of magnesium oxide will be f
guajiro [1.7K]

Answer: -

8.00 g

The law of conservation of mass

Explanation: -

When magnesium burns in air it combines with oxygen to form magnesium oxide.

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The mass of the reactant is the mass of the magnesium + mass of the oxygen.

Since matter cannot be created or destroyed according to the law of conservation of mass,

Mass of Magnesium oxide formed = mass of magnesium reacted + mass of oxygen reacted

= 3.00 g + 5.00 g

= 8.00 g

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What kind of graph would best show the info in the data table below?
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