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
yKpoI14uk [10]
3 years ago
6

Chemistry help. Will give Brainliest!

Chemistry
1 answer:
VashaNatasha [74]3 years ago
8 0
#1. An element or ion that has lost two electrons must have a net charge of 2+, because it has two more protons than electrons, therefore the answer is Mg2+

#2. aluminum ions have an oxidation state of 3+ and fluoride has an oxidation state of 1-, therefore I’m order for the charges to cancel you need 3 fluoride ions.
Therefore, the answer is AlF3
You might be interested in
How does distance affect work pls quick its 15 points pls keep it short pls help!!!!
ra1l [238]
The simple equation used to calculate work is force multiplied by distance, thus as this is the case increasing the distance by a certain amount, assuming the force applied to the object is constant, the amount of work you are doing on the box for instance pushing it, is going to be greater

Since you are pushing the box with the same force covering a greater distance with the force.
4 0
2 years ago
Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P and volume V satisfy the eq
ad-work [718]

Answer:

-75 cm^3/min

Explanation:

Given from Boyle's law;

PV=C

From product rule;

VdP/dt + PdV/dt = dC/dt

but dC/dt = 0, V= 500 cm^3, P= 200kPa, dP= 30kPa/min

PdV/dt = dC/dt - VdP/dt

dV/dt = dC/dt - VdP/dt/ P

substituting values;

dV/dt = 0 - (500 * 30)/200

dV/dt = -75 cm^3/min

5 0
2 years ago
_2. The temperature of a 100. mL sample of gas is increased while the volume it occupies decreases. The
yaroslaw [1]

Answer

the answer is b bro

Explanation:

i did my research and got it right

5 0
3 years ago
What does the poitof incidence mean?​
Lemur [1.5K]

Answer:

Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.

Explanation:

Search

4 0
3 years ago
Which of the following statements does not describe the structure of an atom?  An atom has a small, dense center called the nucl
Gala2k [10]
<span>Inside the nucleus of an atom are protons and electrons. </span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Why does a solution of a weak base and its conjugate acid act as a better buffer than does a solution?
    6·1 answer
  • In a neuron relaying a message to its neighbor, where do nerve impulses in a neuron travel to last?
    12·1 answer
  • Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici
    11·2 answers
  • What’s the best answer
    14·1 answer
  • Materials that cannot carry electric energy are called
    11·1 answer
  • What best describes the bonding in a water molecule
    12·1 answer
  • When 1.04 g of an unknown non-electrolyte is dissolved in 50.0 g of cyclohexane, the freezing point decreased by 3.91 degrees C.
    14·1 answer
  • HELP WILL GIVE BRAINLIEST!
    6·1 answer
  • CaCO3 (s) + 2HCl (aq) → CaCl2 (aq) + CO2 (g) + H20 (1)
    6·1 answer
  • 2. Use the graph below to answer the following questions.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!