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Marta_Voda [28]
3 years ago
11

A filament for a light bulb needs to conduct electricity. Which of the elements listed below might be useful as a light bulb fil

ament? Explain your thinking.
A. Tungsten, W
B. Sulfur, S
C. Bromine, Br
Chemistry
2 answers:
horrorfan [7]3 years ago
8 0

Answer:

A. tungsten

Explanation:

Tungsten is a material which high melting point ie. does not melt easily incase of high temperature

gulaghasi [49]3 years ago
7 0

Answer:

option(A):Tungsten

Explanation:

tungsten has highest melting point.

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Which statement accurately describes the reactants of a reaction?
krek1111 [17]

Answer:

C. substances that are used up in a reaction

Explanation:

Substances are combined in a chemical reaction to give rise to other substances. The substances that come together are called REACTANTS while the substances that are produced are called PRODUCTS.

Reactants are used up in the reaction to give rise to new products at the end of the reaction. For example, in the reaction as follows:

6CO2 + 6H2O --> C6H12O6 + 6O2

CO2 (carbon dioxide) and water (H2O) are the REACTANTS of the reaction, which are used up to form glucose and oxygen (products)

6 0
2 years ago
Read 2 more answers
Which statement describes the periodic law?
mr_godi [17]
Answer is: elements in the same group have similar chemical properties.
Periodic law<span> is the arrangement of the </span>elements<span> in order of increasing atomic number.
</span>For example all alkaline metals (I group of periodic table, Na, K, Cs...) loose one electron in chemical reaction and react vigorously with water.
3 0
3 years ago
Read 2 more answers
How many grams of nickel are in a 25.0 g sample of nickel (II) fluoride?
snow_tiger [21]

Answer:

15.17 g

Explanation:

To answer this, we need to find the molar mass of nickel in nickel (II) fluoride. The formula for nickel (II) fluoride is NiF2. This gives us the molar mass of 96.69 g. The mass percentage of nickel is 60.70% approximately (as we divide the molar mass of nickel by that of nickel (II) fluoride), and 60% of 25g gives us 15.17 g

5 0
3 years ago
What is the correct IUPAC name for the acid: H2Lv
d1i1m1o1n [39]
Hydrogen chalcogenides
4 0
2 years ago
3. What are the coefficients needed to balance this equation: Li + Alci→ LICI + Al?
JulijaS [17]

Explanation:

 The problem is in balancing the reaction equation;

              Li   +   AlCl₃     →     LiCl    +    Al

In balancing chemical equations, we must keep the law of conservation of matter in mind.

The law shows that the number of atoms on both sides of the reaction must be the same.

To balance the given equation, we set up simple, solvable algebraic mathematical expressions:

         aLi   +   bAlCl₃     →     cLiCl    +    dAl

Coefficients a, b,c and d

 

   Conserving:

             Li:      a   = c

             Al:      b = d

             Cl:       3b = c

let  b = 1;

      d = 1

       c = 3

      a = 3

                      3Li   +   AlCl₃     →     3LiCl    +    Al

learn more:

Balanced chemical equation brainly.com/question/2947744

#learnwithBrainly

 

5 0
3 years ago
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