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djverab [1.8K]
2 years ago
5

Which property does a metal with a large number of free-flowing electrons most likely have?

Chemistry
1 answer:
Maslowich2 years ago
5 0

good conductivity =)

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Write the chemical equation for the following word equations. Include symbols for physical states in the equation.a. solid zinc
ivanzaharov [21]

Answer:

a.

ZnS(s) + O2(g) → ZnO(s) + SO2(g)

b.

HCl (aq) + Ba(OH)2(aq) → BaCl2(aq) + H2O

7 0
3 years ago
Franklin Roosevelt promised the American people a "new deal," a pledge he made actually before he was elected, at the Democratic
Minchanka [31]

The New Deal program was to help the American economy recover from the Great Depression.

<h3>Who was Franklin Roosevelt?</h3>

Franklin Delano Roosevelt was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945.

Roosevelt promised the American people a "New Deal" if he was elected president in 1932. The goal of this New Deal program was to help the American economy to recover from the Great Depression.

Roosevelt's deal was based on providing economic relief to citizens, reforming institutions that failed during the early 1930's, and helping the overall economy to recover. This popular program lead FDR to be elected president 4 times.

Learn more about Franklin Roosevelt here:

brainly.com/question/8333337

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4 0
2 years ago
If enough changes occur in the gene pool of a species, it is possible that a new species would be created.
lianna [129]

Answer:

Yes

Explanation:

A gene pool is the sum total of all the genes(sum of alleles)of a species and population at any given time is known as gene pool.

The new species are created in nature by four mechanisms such as geographic isolation (allopatric speciation), reproductive isolation (sympatric speciation), mating behaviour (parapatric speciation).

Due to any of these factors when population acquire unique changes in their genes and enough changes have been introduced in the gene pool of the population with time, two population become distinct from each other and not able to interbreed leads to the formation of new species.

6 0
3 years ago
The metal content of iron in ores can be determined by a redox procedure in which the sample is first oxidized with Br2 to conve
coldgirl [10]

Answer:

80.27%

Explanation:

Let's consider the following balanced equation.

2 Fe³⁺(aq) + Sn²⁺(aq) ⇒ 2Fe²⁺(aq) + Sn⁴⁺(aq)

First, we have to calculate the moles of Sn²⁺ that react.

\frac{0.1015molSn^{2+} }{1L} .13.28 \times 10^{-3} L=1.348\times 10^{-3}molSn^{2+}

We also know the following relations:

  • According to the balanced equation, 1 mole of Sn²⁺ reacts with 2 moles of Fe³⁺.
  • 1 mole of Fe³⁺ is oxidized from 1 mole of Fe.
  • The molar mass of Fe is 55.84 g/mol.

Then, for 1.348 × 10⁻3 moles of Sn²⁺:

1.348\times 10^{-3}molSn^{2+}.\frac{2molFe^{3+} }{1molSn^{2+} } .\frac{1molFe}{1molFe^{3+} } .\frac{55.84gFe}{1molFe} =0.1505gFe

If there are 0.1505 g of Fe in a 0.1875 g sample, the mass percentage of Fe is:

\frac{0.1505g}{0.1875g} \times 100 \% = 80.27\%

5 0
3 years ago
Which of the following acts as a catalyst in your body? A. Sweat B. Enzymes C. Blood cells D. Sugar
Alenkasestr [34]
The answer is B. Enzymes.

Enzymes are biological catalysts that help cause reactions in your body.
3 0
3 years ago
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