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frez [133]
3 years ago
11

ASAP HELP PLZZZZ

Chemistry
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

1) in excess

Explanation:

Copper oxide is insoluble in water, while acid is soluble in water

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If you don't use your muscles, they will get weaker and smaller, which is called:
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Answer:

The correct answer would be atrophy.

Explanation:

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4 0
3 years ago
What is the percent yield of oxygen in this chemical reaction?
balandron [24]

73.40%

To express the efficiency of a reaction, you can calculate the percent yield using this formula: %yield = (actual yield/theoretical yield) x 100.

6 0
3 years ago
Give the nuclide symbol for an atom that has<br> mass number 64 and 35 neutrons.
azamat
The mass number represents the summation of the number of protons and the number of neutrons in the nucleus of an atom.
We are given that the mass number is 64 and that the number of neutrons is 35. Therefore:
number of protons = 64 - 35 = 29 protons

In ground state, number of protons in an atom is equal to the number of electrons. Therefore,
number of electrons = 29 electron

Using the periodic table, we will find that the element that has 29 electrons in ground state is copper.
The nuclide symbol of copper is shown in the attached image.

5 0
4 years ago
Calculate the molecular mass or formula mass in any of CH4 NO2 SO3 C6H6 Nal
Zielflug [23.3K]

Answer:

Ch4 Is an ion so the molecule yes 5

Explanation:

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Which is NOT a property of metals?
frutty [35]
C is not a property of metals
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