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
ch4aika [34]
3 years ago
5

Can someone please help me with the with this

Chemistry
1 answer:
solong [7]3 years ago
4 0

Answer:

Chemical

Explanation:

You might be interested in
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration
DerKrebs [107]

Answer:

3.65 g / ml correct to 3 sig. fig.

Explanation:

The computation of the concentration required is shown below:

As we know that

[A] = mass of solute ÷ volume of solution

Before that first find the mass of solute

Given that

Initial weight = 5.55g

And,

Final weight = 92.7 g

So,

Mass of KCl is

= 92.7 - 5.55

= 87.15 g ~ 87.2 g

Now the KCi is fully dissolved, so the volume is 23.9 ml

So,  concentration is

= 87.2 g ÷ 23.9 ml

= 3.65 g / ml correct to 3 sig. fig.

6 0
3 years ago
Help with Chemistry Thank You To Who Ever Helps Things Have Been Hard For Me.
bija089 [108]

Answer:

1.The electonic configuration of elements and their position in the periodic table are related to each other, From the electronic configuration of the elements, we can determine the period and the group to which the element belongs

Let's consider, sodium with atomic number 11 and k, l, and M shells have 2,8,and 1 electrons. since, there are 3 principal energy levels so we concluded sodium belongs to third period M Shell(valance shell) has only 1 electrons. so sodium belongs to group 1.

2. Entire D-block elements are known as Transition Elements.

3. Group 17 is the halogen group.

4. Main group of elements are...... 1,2, and 13 through 18.

5. Group 18 are the noble gas elements .

12. a). Smaller

b). Increases

c). More reactive

d). Softer

7. a). k › Ca › Ge › Br › Kr

b). Ra › Ba › Sr › Ca › Mg › Be

9. a). Ca(calcium) ion is smaller.

b). Cl(chlorine) atom is smaller.

c). Mg(magnesium) atom is smaller.

10. a). F(fluorine)

b). Sr(strontium)

c). Pb(lead)

d). At(Astatine)

7 0
2 years ago
Which element has the greatest electronegativity?
Alex Ar [27]
Fluorine has the highest. Fluorine's electronegativity is 4.0
3 0
3 years ago
Organisms, or living things are made of tiny particles that can join together and make larger structures.
zzz [600]
Living things are highly organized and structured, following a hierarchy of scale from small to large. The atom is the smallest and most fundamental unit of matter. It consists of a nucleus surrounded by electrons. Atoms combine to form molecules, which are chemical structures consisting of at least two atoms held together by a chemical bond. In plants, animals, and many other types of organisms, molecules come together in specific ways to create structures called organelles. Organelles are small structures that exist within cells and perform specialized functions. As discussed in more detail below, all living things are made of one or more cells.

8 0
2 years ago
Relative dating determines the relative age of fossils according to
KiRa [710]
The answer Is C.the layer of rock they're found in
7 0
2 years ago
Read 2 more answers
Other questions:
  • Exactly 1 mole of alpo4 contains how many moles of al p and o
    5·1 answer
  • What happens to the density of most substances as they cool and solidify?
    5·1 answer
  • Which wave corresponds to the higher-energy radiation? which wave corresponds to the higher-energy radiation? wave (b) has the h
    8·1 answer
  • Is it true that a gas occupies volume of any vessel it is put on ?If so, what if we transferred the gas kept in a small containe
    8·1 answer
  • Which of the following statements correctly describes boyle's law
    10·1 answer
  • Hakim used 18000J of energy to climb up to the top of a building in 10 mins. calculate the power he developed in climbing up to
    10·1 answer
  • Sarah heated some orange coloured crystals in a test tube. The crystals turned green and fizzed. After the fizzing stopped, the
    7·1 answer
  • How many grams of NaCl should be added to 250 grams of waterto<br> make a 0.40 m solution?
    6·1 answer
  • Which ion does not have a noble gas configuration in its ground state? which ion does not have a noble gas configuration in its
    12·2 answers
  • Someone help me all i know it’s not C btw!!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!