1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iragen [17]
2 years ago
10

Pls help me I don’t understand it’s for my science class.

Chemistry
1 answer:
olchik [2.2K]2 years ago
6 0

Answer:

gold - element

nickel- element

You might be interested in
Distinguish between acids and bases by indicating TWO general properties of acids and TWO general properties of bases. Be specif
qaws [65]

Answer:

  1. Acids react with metals to liberate hydrogen and form salt while Bases neutralize acids to form salt and water.
  2. Acids are corrosive in nature while Bases are not
5 0
2 years ago
ASAP: in group 13, the only metalloid, boron, is at the very top of the group. Explain why the rest of the group has metallic be
Marrrta [24]

Electronegativity of boron is the highest in the group and it will form covalent bonds in all his combinations.

The rest of the group will form bonds with intermediate nature between covalent and ions bods in their respective compounds, with thallium (Tl) behaving most close to a metal.

Moreover boron have a very high melting points (around 2200 °C) while in the boron cristal the chemical bonds are directed in space, similar with carbon suggesting his nature as a non-metal.

Other elements form the group Al, Ga, In, Tl have lower melting points 660, 30, 157 and 304  °C, respectively. Also in the elemental state, they have metallic characteristics: metalic luster, ductility, high electrical and thermal conductivity.

3 0
3 years ago
How will we know that a chemical reaction happened if we cant see atoms??
Mariana [72]

we can do soo by noticing any colour change, or by the formation of an insoluble precipitate or by the evolution of a gas.

6 0
2 years ago
What is the best description for a solution with a hydroxide-ion concentration equal to 1 x 10-4 m?
djverab [1.8K]

Answer:

This is a basic solution

Explanation:

To be able to provide a succint description of this solution, from the given parameters we can deduce the pH of the solution.

Given parameters:

Concentration of OH⁻ = 1 x 10⁻⁴M

Solution

          We knonw that pOH = -log₁₀[OH⁻]

                   pOH = -log₁₀ 0.0001 = - (-4) = 4

For an aqeous solution:

                  pH + pOH = 14

                  pH = 14 - 4 = 10

The pH of the solution has been derieved to be 10

This is a basic solution

7 0
3 years ago
Describe one chemical property of Group 1 metals that results from the atoms of each metal having only one valence electron.
sp2606 [1]
Their ability to lose that electron easily. This property is electronegativity. Once that electron is taken away, the atom becomes an ion with a charge of +1. The ion would be much more stable than the atom, because once the electron is lost, the shell underneath will already have 8 electrons that resembles the configuration of a noble gas.
4 0
3 years ago
Other questions:
  • What are the trends and exceptions to the trends in electron affinity
    12·1 answer
  • Describe the relationship between a hypothesis, a theory, and a natural law.
    10·1 answer
  • How are magic minerals different from Felsic minerals?
    14·2 answers
  • An athlete is running a 5-km race at an average speed of 8 km/h. She has to stop to tie her shoe. After tying her shoe, she cont
    6·1 answer
  • Use the periodic table to identify the molar mass of each element below. Answer without doing any calculations.
    14·2 answers
  • An object has a density of 10.00 g/mL. If the object has a volume of<br> 25.00 ml, what is the mass?
    13·1 answer
  • Which direction does the sun to move across the sky
    12·2 answers
  • What is a solution?
    12·1 answer
  • What is the molality of a solution that has 30mg of K3PO4 dissolved in 40mL of water? (The density of water is 1.00 g/mL)
    7·1 answer
  • When pineapple juice disolve in water,it forms like what kind of mixtures.​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!