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TEA [102]
3 years ago
11

Which of the following is a single replacement reaction?

Chemistry
1 answer:
iren2701 [21]3 years ago
5 0
Rb₃Po₄+3H₂O <span>is a single replacement reaction.</span>
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In order for a chemical reaction to take place, what MUST ALWAYS occur?
Mumz [18]

Answer:

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.

Explanation:

6 0
3 years ago
If you are given 96.0 grams of O2, how many grams of H20 are made?
julsineya [31]

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10.66  grams

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8 0
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Alchemists in the Middle Ages dreamed of converting base metals, such as lead, into precious metals—gold and silver. Why could t
lesantik [10]

Explanation:

Each element in the periodic table has different but fixed number of the protons in nucleus of it's atom, which is known as the atomic number.

Transmutation of one chemical element into the another involves the changing of the atomic number. Such nuclear reaction requires millions of the times more energy as compared to normal chemical reactions. Thus, the dream of  the alchemist of transmuting the lead into the gold was never achievable chemically .

Conversion of lead to gold in today's world:

This conversion is indeed possible. The requirements are a particle accelerator, tremendous supply of the energy. Nuclear scientists at the Lawrence Berkeley National Laboratory located in California, more than 30 years ago, succeeded in producing very minute amounts of the gold from the bismuth. Bismuth is a metallic element which is adjacent to the lead on periodic table. Same process would work for the lead but isolating gold at end of reaction would prove much more difficult because lead is available in many isotopes. The homogeneous nature of the element means that it is easier to separate the gold from the bismuth as compared to separate the gold from the lead which has four  isotopic identities which all are stable.

4 0
3 years ago
Which of the following is a pure substance? Choose all that apply.
worty [1.4K]
Nickel is a pure substance

Rust is also a pure substance
7 0
3 years ago
Read 2 more answers
Suggest one reason why cans are not made entirely from tin
Butoxors [25]

Cans aren't entirely made of tin because of rusting. When scratched(which happens quite frequently to cans) the tin is in more danger of rusting. This is why the cans are coated in a layer of tin rather than the whole can is made of it.

5 0
3 years ago
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