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aleksandrvk [35]
3 years ago
11

Two copper electrodes dipped in copper sulphate solution are connected to the end of the battery marked with a ''_'' is:

Chemistry
2 answers:
guajiro [1.7K]3 years ago
8 0

Answer:

d) catión

Explanation:

Rom4ik [11]3 years ago
5 0
It’s d I’m pretty sure ! Have a nice day
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2 H2 + O2 → 2 H2O <br> How many grams of H2O are produced when 2.50 moles of oxygen are used?
vodomira [7]

Answer:

90g

Explanation:

The equation for the reaction is given below:

2H2 + O2 → 2H2O

From the equation above,

1 mole of O2 produced 2 moles of H2O.

Therefore, 2.5 moles of O2 will produce = 2.5 x 2 = 5 moles of H2O.

Now let us convert 5 moles to H2O to grams to obtain the desired result. This is shown below:

Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol

Number of mole of H2O = 5 moles

Mass of H2O = ?

Mass = number of mole x molar Mass

Mass of H2O = 5 x 18 = 90g

Therefore, 90g of H2O are produced

8 0
4 years ago
Calculate the number of atoms in a 7.91×103 g sample of calcium.
frutty [35]
I’m doing this for more questions to ask lamo
8272 82/
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Eiwjb wisp a
4 0
3 years ago
Pls help will give brainiest
kozerog [31]

Answer: A

Explanation:

4 0
3 years ago
Read 2 more answers
How does induced transmutation produce trans uranium elements ?
kifflom [539]
Answer: Artificial transmutation may occur in machinery that has enough energy to cause changes in the nuclear structure of the elements. This releases, on average, 3 neutrons and a large amount of energy. The released neutrons then cause fission of other uranium atoms, until all of the available uranium is exhausted.
Hope this helped!!
Could I get brainliest by chance?!
5 0
4 years ago
The volume of the salt solution is 1000 mL. If the density of the solution is 1.0g/mL, calculate the mass of the solution. Check
xxMikexx [17]

Answer:

1000kg

Explanation:

Density=mass/ volume

Mass= Density× volume

Mass= 1.0g/ml×1000ml

Mass= 1000kg

6 0
3 years ago
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