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
Allushta [10]
3 years ago
9

Can someone answer all please.

Chemistry
1 answer:
boyakko [2]3 years ago
8 0

Answer:

poszukaj w necie , proszę a nie prosisz innych o gotowca

You might be interested in
For the reaction below , label each reactant as an electron pair acceptor or electron pair donor and as a Lewis acid or a Lewis
JulsSmile [24]

Since the reaction shown in the question is an acid - base reaction in the Lewis sense; the Lewis acid here is AlCl3  while the Lewis base here is Cl^- .

<h3>What is  a Lewis acid?</h3>

A Lewis acid is a substance that accepts electron pair while a Lewis base donates an electron pair.

Now consider the given reaction; AlCl3 +Cl^- ------> AlCl 4 ^-. The Lewis acid here is AlCl3  while the Lewis base here is Cl^- .

Learn more about acid - base reaction: brainly.com/question/14356798

6 0
2 years ago
How many moles are present in
olasank [31]

Answer: (a) There are 0.428 moles present in 12 g of N_{2} molecule.

(b) There are 2 moles present in 12.044 \times 10^{23} particles of oxygen.

Explanation:

(a). The mass of nitrogen molecule is given as 12 g.

As the molar mass of N_{2} is 28 g/mol so its number of moles are calculated as follows.

No. of moles = \frac{mass}{molar mass}\\= \frac{12 g}{28 g/mol}\\= 0.428 mol

So, there are 0.428 moles present in 12 g of N_{2} molecule.

(b). According to the mole concept, 1 mole of every substance contains 6.022 \times 10^{23} atoms.

Therefore, moles present in 12.044 \times 10^{23} particles are calculated as follows.

Moles = \frac{12.044 \times 10^{23}}{6.022 \times 10^{23}}\\= 2 mol

So, there are 2 moles present in 12.044 \times 10^{23} particles of oxygen.

4 0
2 years ago
When the temperature of a reacting mixture increases, the rate of reaction increases. Which statement explains why the rate of r
wlad13 [49]

Answer:

This is one of the factors that affects chemical reactions

Temperature:This is because when the temperature is raised energy in form of heat is supplied to the reacting particles and so the rate of reaction is increased.

3 0
3 years ago
Identify the following as physical (P) or chemical (C) changes.
Stels [109]

holacomo es tu pregunta nola entiendo

lanation:

4 0
3 years ago
Read 2 more answers
What is the molar mass of Pb(Cr2O7)2
bagirrra123 [75]

Answer:

The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.

6 0
2 years ago
Read 2 more answers
Other questions:
  • What causes water molecules to be attracted to each other?
    10·2 answers
  • Mary wanted to determine which type of fertilizer would help her plants grow taller. She got 16 plant pots andd scooped 2 cups o
    8·1 answer
  • Which units are used to measure both velocity and speed? Select 3 correct choices.
    15·1 answer
  • How many moles are in 6.5g of carbonate​
    5·1 answer
  • CaCl2 can be melted to produce calcium metal and give off chlorine gas. The equation for this is CaCl2(l) Ca(s) + Cl2(g). If 277
    14·2 answers
  • If white light shines on an object and the red, orange, green, blue, indigo, and violet light is absorbed. What color does your
    11·2 answers
  • What is the compound of scI2
    5·2 answers
  • What is the mass number of a carbon isotope with 10 neutrons
    6·2 answers
  • What happens to the velocity of an object when balanced forces act on it?
    5·1 answer
  • Balance the following equation:<br> -_MgCO3 → _MgO + __CO2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!