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never [62]
3 years ago
11

Please help! not sure what this is asking.

Chemistry
1 answer:
Novay_Z [31]3 years ago
3 0

Answer:

 The question is asking for you to type the formulas into the adjacent boxes. It wants you to be familiar with correctly typing formulas and using the underscore to type subscripts (the numbers that are smaller and are positioned lower than the letters). So, type out the formulas given into the boxes.

Na₂CO₃ would be typed as Na_2CO_3

Al₂(SO₄)₃ would be typed as Al_2(SO_4)_3

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Which representative element has the largest atomic radius ?
Vikki [24]

Answer:

francium

Explanation:

the atomic radius increases from top to bottom in a group, and decreases from left to right across a period.

7 0
4 years ago
What is the mass of and object with a volume of 100 cm3 and a density of 10 g/cm3?
nadezda [96]

Answer:

1000 g

Explanation:

d = m/v

We are given d: 10g/cm3

and v: 100cm3

Plug them into the equation to get 10 = m/100

Then, cross multiply 10x100 to get mass which is: 1000g

4 0
3 years ago
In a redox reaction, reduction is defined by the:
jonny [76]

Answer:

C. Gain in electron(s) resulting in a decrease of oxidation number.

Explanation:

Redox reactions are reactions involving transfer of of electron between two species (reduction specie) and (oxidation species) and change resulting in change in oxidation number.

Reduction in terms of redox reaction is the specie that accepts electron(s) and gets "reduced" since its oxidation state has been reduced.

For example

Cl + e- → Cl⁻

The above reaction is an example of reduction reaction taking place in a redox reaction. We can see that Chlorine oxidation state was changed from (0) to (-1) state.

5 0
3 years ago
A(n)____ is a ripened ovary
V125BC [204]
A(n) fruit is a ripened ovary
7 0
3 years ago
A student melts 50.0 grams of ice using 16650 J of energy. What is the heat of fusion of ice?
Shkiper50 [21]
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hope that helps :)
6 0
3 years ago
Read 2 more answers
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