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hodyreva [135]
3 years ago
11

What is a representative element based on IUPAC? A. F- B. Ca2+ C. Cr2+ D. N2-

Chemistry
2 answers:
spin [16.1K]3 years ago
7 0

Answer:

I think c .. ..............

belka [17]3 years ago
4 0

Answer:

s

Explanation:

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What volume ( L ) of carbon dioxide, CO2, is required to produce 3.75 moles? 1 mol = 22.4 L
Allushta [10]

Assuming the number of moles give is of CO₂, since we know that 1 mol is equivalent to 22.4 L in this case, we can use rule of three to answer this:

V ---- n

x ---- 3.75 mol

22.4 L ---- 1 mol

So, we have the follwing relation:

\begin{gathered} \frac{x}{22.4L}=\frac{3.75}{1} \\ x=3.75\cdot22.4\cdot L \\ x=84L \end{gathered}

So, we need a volume of 84 L.

4 0
1 year ago
If 17.8 g grams of lithium (Li) are combined with 50.0 grams of water (H20) there is
Ad libitum [116K]

Answer:

Explanation:

Li+H2O..................LiOH+H2

mass of Li=17.8 g

No of moles of Li=17.8/7=2.5

mass of H2O=50.0 g

No of moles of H2O=50.0/18=2.8

limiting reagent is Li so 1 mole of Li produce 1 mole of LiOH therefore 2.5 mole of Li produce 2.5 moles of LiOH now we have to convert it into grams

moles=given mass/molar mass

given mass=moles*molar mass

molar mass of LiOH=24

mass=2.5*24=60 gram

3 0
3 years ago
PLEASE HELP ME! What are some patterns or trends that are present in the table of elements?
Sati [7]

Some patterns and trend that are present in the periodic table would be

1. electronegativity (from left-to-right it increases across the table)

2. ionization (from left-to right it increases and from bottom-to-top it increases)

3. electron affinity (same as ionization energy)

4. atom radius (increases opposite way; from right-to-left it increases and from top-to-bottom it increases)

5. melting point (higher melting points with metals and lower melting point with non-metals)

6. metallic character (same as atom radius)

5 0
3 years ago
We can also use the activity series to predict reactions between a metal and an acid. what are the products of the reaction fe(s
andrew11 [14]

Answer;

FeSO4 (aq) + H2 (g)

Explanation;

The reaction between iron and dilute sulfuric acid gives a salt and hydrogen gas. (iron (ii) sulfate and hydrogen gas).

The equation for the reaction is;

Fe(s) + H2SO4 (aq) = FeSO4(aq) +H2(g)

8 0
4 years ago
What is the mass of a light bulb
DIA [1.3K]
It is completely dependent on the type of light bulb you are talking about. There are many different kinds of light bulbs, I cant give you a solid answer.
3 0
4 years ago
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