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Alexeev081 [22]
3 years ago
7

Describe the changes in properties (from metals to nonmetals or from nonmetals to metals) as we move (a) down a periodic group a

nd (b) across the periodic table from left to right.
Chemistry
1 answer:
defon3 years ago
7 0

Answer:

Explanation:

The changes in properties from metals to non-metals on a periodic table can be measured and determined by the metallicity or electropositivity of elements.

Metallicity is a measure of the tendency of atoms of an element to lose electrons.

a.

Down a periodic group, metallicity increases.

b.

Across a period from left to right electropositivity or metallicity decreases.

Metals are found in the left part of periodic table and the most reactive metal sits in the lower left corner. Non-metals are towards the right side of the table.

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When the limiting reactant in a chemical reaction is completely used, what happens to the reaction?
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Jen makes a Venn diagram to compare active transport and passive transport.
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Determine the correct set of coefficients to balance the chemical equation. __c6h6(l) + __o2(g)? __co2(g) + __h2o(g)
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Now that the coefficient of the products are determined, we can balance O. There are 6*2=12 O's in CO2 and 3*1=3 O's in H2O.  So the total number of O in the products is 12+3 = 15.  O2 is the only reactant that contains O, so to balance the equation, the coefficient of O2 should be 15/2.
Now the equation looks like:
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How many mL of 2M stock solution would I use to prepare 0.500 L of 0.1 M NaCl?
nordsb [41]

Answer:

25 mL

Explanation:

Step 1: Given data

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Step 2: Calculate the volume of the concentrated NaCl solution

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3 years ago
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