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
KiRa [710]
3 years ago
10

100 points! Report on an element

Chemistry
2 answers:
AnnyKZ [126]3 years ago
7 0

Gold.

AU

79

Atomic mass 196.96...

Metal

Anglo Saxon

Group number 11

Golf is used for money or jewelry

It is natural found in caves

Gold is valuable and beautiful

Hope this helps!

Luden [163]3 years ago
6 0

Hydrogen  H weight: 81

Non-metal

Hydrogen is the simplest element; an atom consists of only one proton and one electron. It is also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth--it is always combined with other elements.

period 1 group 1

Hydrogen is easily the most abundant element in the universe. It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.

You might be interested in
What would you need to do to calculate the molarity of 10g of NaCl in 2kg of water?
Artist 52 [7]

Answer:

B) we will convert the 10 g of NaCl into moles.

Explanation:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

we will convert the 10 g of NaCl into moles.

Number of moles of NaCl:

Number of moles = mass/molar mass

Number of moles = 10 g/ 58.44 gmol

Number of moles = 0.17 mol

1 Kg = 1 L

Molarity = 0.17 mol / 2 L

Molarity = 0.085 mol/L

Molarity = 0.085 M

6 0
3 years ago
Read 2 more answers
Which statement best describes a difference between scientists and engineers?
Rashid [163]
Answer. Answer: Scientists study how things work, while engineers create new things
3 0
3 years ago
Read 2 more answers
A sample of P2Cl5 contains 179 g of phosphorous, how many grams of chlorine are present? Please show step by step thx!
natima [27]

Answer:

About 512 g.

Explanation:

We are given a sample of P₂Cl₅ that contains 179 grams of phosphorus, and we want to determine the grams of chlroine that is present.

Thus, we can convert from grams of phosphorus to moles of phosphorus, moles of phosphorus to moles of chlorine, and moles of chlorine to grams of chlorine.

From the formula, there are two moles of P for every five moles of Cl. The molecular weights of P and Cl are 30.97 g/mol and 35.45 g/mol, respectively. Hence:

\displaystyle 179\text{ g P} \cdot \frac{1\text{ mol P}}{30.97\text{ g P}} \cdot \frac{5\text{ mol Cl}}{2\text{ mol P}} \cdot \frac{35.45\text{ g Cl}}{1\text{ mol Cl}} = 512\text{ g Cl}

In conclusion, there is about 512 grams of chlorine present in the sample.

Alternatively, we can mass percentages. The mass percent of phosphorus in P₂Cl₅ is:


\displaystyle \% \text{P} = \frac{2(30.97)}{5(35.45) + 2(30.97)} = 25.90\%

Because there are 179 grams of phosphorus, the total amount of sample present is:


\displaystyle \begin{aligned} 25.90\% \cdot  m_T  & = 179\text{ g P} \\ \\ m_T & = 691.1 \text{ g}\end{aligned}

Therefore, the amount of chlorine present is 691.1 g - 179 g, or about 512 g, in agreement with our above answer.

8 0
3 years ago
4. Will the net force be balanced or unbalanced?<br> 7N<br> 4N<br> A. Balanced<br> B. Unbalanced
o-na [289]

Answer:

Unbalanced

Explanation:

The force applied is not the same

8 0
4 years ago
The process of ____ occurs when magma, lava, or a solute in a solution becomes a solid and the internal components will arrange
satela [25.4K]

Answer:

D. Crystallization

Explanation:

Let's clarify the irrelevant terms first.

  1. unification: This term has nothing to do with chemistry at all
  2. lithification: When the problem mentions magma and lava, you might think that this term is related to the process here. However, 'lithification' <em>do </em>have a precise meaning in geology. It refers to the process where sediments collapses into one single rock under pressure, which has nothing to do with the process mentioned here.

Now, for 2 terms that might confuse you: 'solidification' and 'crystallization' these also has precise scientific definition

Solidification is defined the process where substances in <em>liquid</em> phase changes its phase to <em>solid</em>. On first glance, this answer might seems correct, and yes, it is correct for this question. But not the <em>most</em> correct.

The keyword here is  

 'the internal components will arrange its self in an  organized pattern.'

Crystallization is a special case of Solidification where the atoms or molecules of liquid solidify by spontaneously arrange themselves in periodic, ordered, and organized pattern. It might or might not happen during solidification depending on cooling rate, viscosity of liquid, and other factors.

So, Crystallization is the most correct answer here.

4 0
3 years ago
Other questions:
  • A sample of a compound contains 160 g of oxygen and 20.2 g of hydrogen. Give the compound's empirical formula.
    6·2 answers
  • Which method is usually used to separate colored substances from each other? * 1 point?
    15·2 answers
  • A molecule of carbon dioxide is made up of 1 atom of carbon and 2 atoms of oxygen. Which of the following represents 2 carbon di
    6·2 answers
  • When an acid and a base are mixed together, a neutralization reaction occurs. the products of an acid-base reaction do not have
    10·1 answer
  • What is “potential difference”? Please can someone define + explain this science term?
    15·1 answer
  • Breaking larger molecules into smaller molecules and carbon
    14·1 answer
  • Help please I’m confused
    15·1 answer
  • Each of the following can be used to make observations, except:
    10·1 answer
  • Discussion: Bacteria vs. Virus
    10·1 answer
  • 4. Define power and explain how to determine power.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!