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IRINA_888 [86]
3 years ago
14

In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery.

Chemistry
1 answer:
Sedaia [141]3 years ago
5 0

Answer:

Explanation:

1 mole of Fe require 2 Moles of NiO(OH)

so for 4.25 mol of Fe and 6.70 mol of NiO(OH), Fe is the limiting reagent.

1 mole produces 1 mole of Fe(OH)2

4.25 moles will produce 4.25 moles of Fe(OH)2

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Describe three findings of the Human Genome Project<br> Write it in your own words
nata0808 [166]

Answer:

The biggest known human gene, is made up of about 2.4 million bases. The Human Genome Project also gave us more detailed information about chromosomes. It turns out that chromosome 1 contains the most genes, while the Y chromosome has the fewest.

Explanation:

3 0
3 years ago
What is an alkali metal with fewer than 10 protons in its nucleus?
Trava [24]

Answer:

            Lithium

Explanation:

                  Alkali metals are group of metals which are present in first group of periodic table. As we know atomic number is equal to number of protons contained by a particular element. Therefore, the alkali metals along with there number of protons are listed below;

Alkali Metal                                         Number of Protons

Lithium                                                               3

Sodium                                                             11

Potassium                                                         19

Rubidium                                                         37

Cesium                                                             55

Francium                                                          87

Hence, it is cleared from above table that Lithium is having fewer protons than 10.

6 0
3 years ago
What is an example of potential energy and kentic energy?
lana [24]
Potential energy is stored energy. Kinetic energy involves movement.

If a ball is on the top of a hill, it has the most potential energy on the very top of the hill. The kinetic energy is also 0 at this point.

If the ball rolls down the hill, potential energy decreases while kinetic increases.

simple example
3 0
3 years ago
Read 2 more answers
A flask contains 0.340 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.
marshall27 [118]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We calculate as follows:

0.340 mol Br2 ( </span>6.022 x 10^23 molecules / mol ) = 2.05 x 10^23 molecules
7 0
3 years ago
Read 2 more answers
2. Metals react with water and release hydrogen gas. Explain why non-metals do not release hydrogen gas when reacted with water.
Phantasy [73]

Answer:

Its because non-metals are unable to break the bond between the H and O ion and cannot reduce hydrogen by donating electrons

8 0
2 years ago
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