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Alika [10]
3 years ago
7

What is a substance?

Chemistry
2 answers:
love history [14]3 years ago
4 0
The proper definition would be B. A mixture that can be separated.
hjlf3 years ago
3 0

Answer: The correct answer would be A: a uniform mixture that can’t be separated

Explanation: Google's definition is: "a particular kind of matter with uniform properties."

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Write the symbol for the element which has the smallest atomic radius.c, al, li, ne.
enot [183]
Ne because as we go in period atomic radius decreases
7 0
3 years ago
Use the periodic table to answer this question. Decomposing calcium carbonate yields calcium oxide and carbon dioxide. What info
Anuta_ua [19.1K]
Atomic number and place on table.
8 0
3 years ago
Read 2 more answers
Naoki's bicycle has a mass of 10 kg. If Naoki sits on her bicycle and starts pedaling with a force of 168 N, causing an accelera
White raven [17]

Answer:

50 kg

Explanation:

Data:

Mass of bicycle = 10 kg

                       F = 168 N

                       a = 2.8 m/s²

Calculation:

                     F = ma     Divide each side by m, Then

                 m = F/a

                     = 168/2.8

                      = 60 kg

                 m = mass of bicycle + Naoki's mass. Then

                60 = 10 + Naoki's mass     Subtract 10 from each side

Naoki's mass = 50 kg

3 0
3 years ago
Suppose a friend says that we don't need to worry about the rising temperatures associated with global climate change. Her claim
ludmilkaskok [199]

Answer:

Carbonic acid could be formed.

Explanation:

Hello,

Based on her claim, it would be a really useful strategy to prevent global warming, nevertheless, there would be a problem if a increasing amount of carbon dioxide is not buried at the bottom of the ocean yet it flows freely along the sea and probably reacting with the water, causing carbonic acid to be formed  and subsequently cutting back the sea's pH (increasing its acidity).

It would be useful, but a constant monitoring of the sea's pH must be needed because this could cause some species to be affected not only by the temperature but for the acid pH as well.

Best regards.

4 0
3 years ago
Which ion does not have a noble gas configuration in its ground state?
goldfiish [28.3K]
I think the answer would be Ga3+
3 0
3 years ago
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