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
mylen [45]
3 years ago
5

When trying to identify an unknown element, a scientist determines what other elements the unknown element reacts with chemicall

y. Which property of the unknown element determines the other elements it reacts with?
Chemistry
2 answers:
mariarad [96]3 years ago
8 0

The number of valence electrons and electronegativity of an element in the unknown element determines the other elements it reacts with.

<u>Explanation:</u>

The ability of an atom to attract the electrons for bonding is called electro negativity. When an atom has highjer electronegativity it can attract electrons stronger. When the atom's electronegativity is lower it can attract electrons weaker. This property is very important in the determination of how well an element can readily react with another element.  

The determination of an element's reactivity can also be done  by the number of valence electrons in the outermost shell. The elements that has valence electrons lesser than 4 will be giving its valence electron for getting 8 electrons in the next shell so that it can become an ion of stable nature. An element that has 4 electrons will form covelant bond. The elements that have greater than 4 electrons will be getting electrons from some other element.

BartSMP [9]3 years ago
5 0

Answer:

Its D

Explanation:

You might be interested in
A gas occupies a volume of 4.50 L at 44 kPa. What would be the new volume at 50 kPa?
oksano4ka [1.4K]

Explanation:

P1= 44 kpa

P2= 50 kpa

V1= 4.50 L

V2= ?

P1 V1= P2 V2

44 × 4.50 = 50 × V2

198= 50 × V2

V2 = 198/ 50

V2= 3.96 L "the new volume"

5 0
3 years ago
Organisms that reproduce sexually have offspring with greater variety. Which statement best explains this characteristic?
Bas_tet [7]

Organisms that reproduce sexually have offspring with greater variety because: B. The offspring get DNA from two parents, and it combines randomly.

Reproduction refers to a biological process through which living organisms (parents) mate to produce offspring.

Basically, there are two (2) main types of reproduction and these include;

  • Asexual reproduction.
  • Sexual reproduction.

During sexual reproduction, parent organisms produce offspring with greater variety because the genetic material of their parents are randomly combined to produce genetically-diverse offspring.

Read more: brainly.com/question/24261254

8 0
2 years ago
Read 2 more answers
Please help quick
Rama09 [41]

Answer:

c = 0.898 J/g.°C

Explanation:

1) Given data:

Mass of water = 23.0 g

Initial temperature = 25.4°C

Final temperature = 42.8° C

Heat absorbed = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Specific heat capacity of water is 4.18 J/g°C

ΔT = 42.8°C - 25.4°C

ΔT = 17.4°C

Q = 23.0 g ×  × 4.18 J/g°C × 17.4°C

Q = 1672.84 j

2) Given data:

Mass of metal = 120.7 g

Initial temperature = 90.5°C

Final temperature = 25.7 ° C

Heat released = 7020 J

Specific heat capacity of metal = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 25.7°C - 90.5°C

ΔT = -64.8°C

7020 J = 120.7 g ×  c ×  -64.8°C

7020 J = -7821.36 g.°C ×  c

c = 7020 J / -7821.36 g.°C

c = 0.898 J/g.°C

Negative sign shows heat is released.

7 0
3 years ago
What is a living thing that can carry out life process by itself
9966 [12]

Answer:

All Living things

Explanation:

All living things are capable of carrying out all life processes. Some examples of such organisms are plants, animals, microorganisms (such as bacteria)

And organism too

6 0
3 years ago
Read 2 more answers
Given the balanced equation representing a reaction:
Vladimir79 [104]

Answer:

Option A. Addition

Explanation:

Unsaturated compounds under goes addition reaction to produce saturated compounds..

In the equation given above i.e

H2C=CH2 + F–F —> FCH2CH2F

we can see that the double in H2C=CH2 disappear by the reaction of F–F to produce FCH2CH2F which has no double. This simply indicates that the F–F was added to H2C=CH2. Hence, the reaction is called addition reaction.

4 0
3 years ago
Other questions:
  • I have a very question what is the viruz more dangerous for the word
    15·1 answer
  • Thunder and lightning make atoms true or false
    10·1 answer
  • What part of a microscope supports the weight of the microscope
    15·2 answers
  • Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas fo
    6·1 answer
  • what are the mole ratios of hydrazine (n2h4) to hydrogen peroxide (h2o2) and hydrazine to water? 1:2 and 1:4 1:3 and 1:4 1:2 and
    6·1 answer
  • Which three terms are needed to describe the energy a base jumper has as she falls toward the ground ? APEX
    11·1 answer
  • When ice is melting, the heat being added causes:
    9·2 answers
  • Among the following, which is NOT an ionic compound?<br> Ca3N2<br> N204<br> AICI:<br> NaCl
    10·1 answer
  • Explain what physical state ypu would expect astatine to be in at room temperature
    7·2 answers
  • So if you had corbphydrates and hydronic acids and you put them together what would be the radius?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!