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Svetllana [295]
3 years ago
11

Which predictions can most likely be made?

Chemistry
2 answers:
Agata [3.3K]3 years ago
7 0

Answer:

C. Sb has a lower ionization energy and a lower electronegativity than I.

Explanation:

The chemical elements present higher ionization energy the higher and to the right of the periodic table they are.

Electronegativity usually increases from left to right over a period of the periodic table and from top to bottom in the groups.

pshichka [43]3 years ago
7 0

Answer:

c

Explanation:

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C12H22O11 + 11 H2SO4 12 C + 11 H2SO4 + 11 H2O
Vladimir [108]

Answer:

B: The sulfuric acid is not consumed or react with the reactant.

4 0
3 years ago
What kind of elements are on the left side of the zig-zag line on the periodic table?
Ber [7]

Metals are to the left of the zig-zag, nonmetals are to the right, and metalloids lie on/beside the line.

3 0
3 years ago
Please help quick the 6th question is “What is a catalyst?” (include all three parts)
allochka39001 [22]
1. The reaction is exothermic.

2. I know this because the delta H is a negative number. (-802.4 kJ)

3. This means that this reaction releases heat.
4 0
3 years ago
Archeologists can determine the age of artifacts made of wood or bone by measuring the amount of the radioactive isotope 14C pre
Ahat [919]

Answer: The age of the tool is 15539 years

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{15.5}{100}\times 100=15.5  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.  

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5730yr}=0.00012yr^{-1}

b) for 15.5 % of original amount

t=\frac{2.303}{0.00012}\log\frac{100}{15.5}

t=15539years

Thus age of the tool is 15539 years

8 0
3 years ago
Equation for hydrogen
Sergio [31]
The chemical equation for Hydrogen is just H
5 0
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