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
Licemer1 [7]
3 years ago
11

Hellppppp ASAP Will mark brainliest !!!!Which of the following metals is paramagnetic

Chemistry
1 answer:
sasho [114]3 years ago
8 0

Answer:

A. Berryllium is a paramagnetic

You might be interested in
The specific heat of a substance is the energy required to produce a certain change in _____________. A. state B. appearance C.
alexandr1967 [171]
D is tthe answer hope this helps

8 0
3 years ago
If the pH is 4.5, what is the pOH ?
Ahat [919]
PH+pOH=14
4.5+pOH=14
pOH=14-4.5
pOH = 9.5

We know that
[H⁺][OH⁻]=10⁻¹⁴,so

-log([H⁺][OH⁻])=-log10⁻¹⁴
-log [H⁺]+ (- log[OH⁻])= - log10⁻¹⁴,
- log[H⁺] = pH
- log[OH⁻] = pOH
- log10⁻¹⁴=-(-14)log10=14*1=14
pH + pOH =14

7 0
3 years ago
What is ion, electrons, neutrons?
Serjik [45]

Answer:

Explanation:

Ions:

When an atom lose or gain electron ions are formed.

There are two types of ions anion and cation.

Anion:

When an atom gain electron negative charge is created and anion is formed.

X + e⁻  → X⁻

Cation:

When an atom lose electron positive charge is created and cation is formed.

X   →  X⁺ + e⁻

Electron:

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e-

Mass= 9.10938356×10-31 Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.

Properties of cathode ray:

The ray is travel in straight line.

The cathode ray is independent of composition of cathode.

When electric field is applied cathode ray is deflected towards the positively charged plate.

Hence it was consist of negatively charged particles.

Neutron and proton:

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P+  

Symbol of neutron= n0  

Mass of proton=1.672623×10-27 Kg

Mass of neutron=1.674929×10-27 Kg

5 0
3 years ago
Which two notations represent atoms that are isotopes of the same element?
kkurt [141]
I am sure it is a.12150sn and 11950sn because isotopes are the same atoms but different number of protons
4 0
3 years ago
at which type of plate boundary do most earthquakes occur? A.convergent B.transform C.divergent D.trench
tino4ka555 [31]

Answer: A. convergent

Most earthquakes occur at the boundary where two plates meet. This phenomena is called as convergent plate tectonics. In this phenomena the two plates moves towards each other. If the plates are of equal density then they will push each other but if they are of unequal density, the denser plate sink beneath the other plate.

7 0
3 years ago
Other questions:
  • A target of bismuth-209 was bombarded with iron-58 for several days. one atom of meitnerium (266109mt) was produced. how many ne
    12·1 answer
  • 2SO2(g) + O2(g) → 2SO3(g) How many grams of SO3 will be produced from the reaction of 6.60 liters O2 with excess SO2 at STP? A)
    13·2 answers
  • . What is the molarity of a solution in which 6.50 mol of NaOH is dissolved in
    12·1 answer
  • What is in between the nucleus and electrons of an atom?
    13·1 answer
  • Please help. thank youuuu
    5·1 answer
  • Swel<br>What is a mixture?​
    13·1 answer
  • Choose the phrase that best defines ecosystem service. (1 point)
    10·2 answers
  • HELPPP<br>yall please help my sister won't help me ​
    11·1 answer
  • What is the freezing point in °C) of a
    5·1 answer
  • What happens when food first touches your tongue?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!