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
JulijaS [17]
3 years ago
5

What are the answers to these?

Chemistry
1 answer:
antiseptic1488 [7]3 years ago
4 0

Answer: 1. AgF + CaCl2 = AgCl + CaF2

2. C2H4 +O2 = CO2 +H2O

3. K2S = K+S

4. O2 + Mg = MgO

5. Mg + AlBr3 = MgBr2 + Al

6.C2H6O + O2= CO2 + H2O

7.Li2SO4 + MgCl2= Li2SO4 + MgCl2

8.HCl + Zn= H2 + ZnCl2

Explanation:

Balance the equation

Write down your given equation.

Write down the number of atoms per each element that you have on each side of the equation.

Always leave hydrogen and oxygen for last.

If you have more than one element left to balance:

Add a coefficient to the single carbon atom on the right of the equation to balance it with the 3 carbon atoms on the left of the equation.

Balance the hydrogen atoms next.

Balance the oxygen atoms.

You might be interested in
CAN SOMEONE PLEASE PLEASE PLEASE ANSWER MY FOUR MOST RECENT QUESTIONS PLEASEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
SpyIntel [72]
Put a picture there’s nothing here
7 0
3 years ago
How many nickel atoms are in a nickel coin with a mass of 3.95g
lyudmila [28]

Answer:

4.05 × 10²² atoms

Explanation:

Step 1: Given data

Mass of nickel: 3.95 g

Step 2: Calculate the moles corresponding to 3.95 g of nickel

The molar mass of nickel is 58.69 g/mol.

3.95 g × (1 mol/58.69 g) = 0.0673 mol

Step 3: Calculate the atoms in 0.0673 moles of nickel

We will use Avogadro's number: there are 6.02 × 10²³ atoms of nickel in 1 mole of atoms of nickel.

0.0673 mol × (6.02 × 10²³ atoms/1 mol) = 4.05 × 10²² atoms

5 0
3 years ago
What is the chemical composition of the mobile phase in this experiment?
Alecsey [184]
H2SO.Mgslfurmobile phase in this experiment
6 0
3 years ago
Which method is used to make the salt copper(II) sulfate?
Tanzania [10]

Answer:

Its B. Dilute acid + carbonate

Explanation:

hope it helps !!

3 0
2 years ago
20 POINTS + BRAINLIEST, HELP
lakkis [162]
It’s 2.0 molecules.

Explanation:

It’s kind of obvious, haha.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following would shift the following equilibrium system to the right? C2H2(g) + H2O(g) ⇌ CH3CHO(g) Removing H2O(g) f
    14·2 answers
  • How might a hurricane in Florida cause anomalous nest data
    15·1 answer
  • An atom that has 13 protons and 15 neutrons is an isotope of what element
    8·2 answers
  • True or False. Isotopes have different chemical properties. Explain why?
    6·1 answer
  • A sample of gas has a mass of 827 mg . Its volume is 0.270 L at a temperature of 88 ∘ C and a pressure of 975 mmHg . Find its mo
    11·1 answer
  • Data collected that describes the quality of the data set is called _______ data.
    5·1 answer
  • An atom of element Be has four protons, four electrons, and five neutrons. Which element below could be an isotope of this atom?
    13·2 answers
  • What would you predict to be the valence number and oxidation number of tin?
    15·1 answer
  • What is the purpose of molecular models?
    13·1 answer
  • What do the letters “P.P.E” stand for in chemical
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!