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
Which of the following statements is true about Planck’s Law?
zimovet [89]
What are the answer choices?
5 0
3 years ago
What is the geometry name for PF5? Is PF5 polar or non-polar?
KonstantinChe [14]
Geometry name is trigonal bypyramidal

non-polar

3 0
3 years ago
What do you call the repetitive motion of a wave (such as the way a cork may bob up and down in the ocean)?
matrenka [14]
Answer is periodic because only happens in certain times
7 0
2 years ago
How many seconds are in 5 hours
vfiekz [6]
18000 seconds = 5 hours
8 0
3 years ago
Read 2 more answers
Which of the following measurements is used to measure the enthalpy of combustion? A. None of these B. Measuring the change in t
DaniilM [7]

Answer: Option (C) is the correct answer.

Explanation:

In a substance, the total energy of its molecular motion is known as heat. Whereas when we measure the average energy of molecular motion of a substance then it is known as temperature.

So, any increase or decrease in temperature will lead to change in heat of a substance.

When one mole of a substance is burned then the amount of energy released  in the form of heat is known as heat of combustion.

Relation between heat and temperature is as follows.

                    q = m \times C \times \Delta T

Thus, we can conclude that to measure the enthalpy of combustion it cannot be measured, only calculated using the equation; q = mc \Delta T.

4 0
3 years ago
Other questions:
  • Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide and oxygen according to the followi
    7·1 answer
  • Which list of radioisotopes contains an alpha emitter, a beta emitter, and a positron emitter?
    15·2 answers
  • How would I go about solving this problem?
    10·1 answer
  • A nurse is caring for a client who is receiving chemotherapy and has a platelet count of 30,000/mm3. Which statement by the clie
    11·1 answer
  • The reaction of nitrogen dioxide with carbon monoxide
    7·1 answer
  • When a river overflows its banks, it deposits sediment over a broad, flat area of land on both sides of the river. This broad fl
    14·1 answer
  • How many kJ of heat are required to melt 35.0 g of ice?
    15·1 answer
  • PLEASE ANSWER QUICK
    10·1 answer
  • While burning coal and charcoal, you notice that coal releases more heat than charcoal. That means that the... 1. elastic energy
    12·1 answer
  • What is the common name of CuCO3
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!