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Alinara [238K]
3 years ago
11

Why is Cu+O=2CuO unbalanced ​

Chemistry
2 answers:
sesenic [268]3 years ago
6 0
Because the two before the cuo means there is 2 moles of each atom and in the reactants there is only one mole of each so to balance the equation u need to put 2 before the cu and before the o
stepan [7]3 years ago
3 0

Answer:

because the product of CuO contains 2 molecules so it is unbalanced

Explanation:

to balance it 2Cu+2O=4CuO now it is balanced

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When milk of magnesia reacts with the acids in your stomach which type of reaction has taken place?
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Neutralization reaction

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They dump large amounts of rainwater that causes flooding. *
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A bar of gold is 5.0mm thick, 10.0cm long and 2.0cm wide. It has a mass of exactly 193.0g. What is the desity of gold?
Tanzania [10]
<h3>Answer:</h3>

19.3 g/cm³

<h3>Explanation:</h3>

Density of a substance refers to the mass of the substance per unit volume.

Therefore, Density = Mass ÷ Volume

In this case, we are given;

Mass of the gold bar = 193.0 g

Dimensions of the Gold bar = 5.00 mm by 10.0 cm by 2.0 cm

We are required to get the density of the gold bar

Step 1: Volume of the gold bar

Volume is given by, Length × width × height

Volume =  0.50 cm × 10.0 cm × 2.0 cm

             = 10 cm³

Step 2: Density of the gold bar

Density = Mass ÷ volume

Density of the gold bar = 193.0 g ÷ 10 cm³

                                      = 19.3 g/cm³

Thus, the density of the gold bar is 19.3 g/cm³

3 0
3 years ago
Which natural occurrence is an example of a long-term environmental change?
ki77a [65]

Answer:

Tectonic plates

Explanation:

Tectonic plates shifting is long term which creates a short term Earthquake, I hope this helped.

4 0
3 years ago
One would not expect yeast to undergo fermentation in the presence of
Hunter-Best [27]

Answer:

Oxygen.

Explanation:

Hello,

Yeast fermentation in the food industry must be carried out under anaerobic conditions as long as when oxygen is present respiration occurs rather than fermentation.

Best regards.

3 0
3 years ago
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