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
alexandr1967 [171]
3 years ago
5

10. Translate each of the following chemical equations into a sentence.

Chemistry
1 answer:
Fofino [41]3 years ago
8 0

Answer:

a) 2ZnS(s)+3O_2(g)\rightarrow 2ZnO(s)+2SO_2(g)

2 moles of Zinc sulphide in solid form reacts with 3 moles of Oxygen in gaseous form to give 2 moles of Zinc oxide in solid form and 2 moles of sulphur dioxide in gaseous form.

b)  CaH_2(s)+2H_2O(l)\rightarrow Ca(OH)_2 aq)+2H_2(g)

1 mole of calcium hydride in solid form reacts with 2 moles of liquid water to give 1 mole of calcium hydroxide dissolved in water and 2 moles of hydrogen in gaseous form.

The chemical reactions are written by writing the chemical formula of the reactants on left side of the arrow followed by chemical formula of the products. The number of atoms of each element must be balanced to follow the law of conservation of mass.

You might be interested in
Why is it important that there is only a small amount of water in the beaker
natita [175]

Answer:

because too much can neutralise the results

4 0
3 years ago
Read 2 more answers
I need help with my homework.Calculate the number of formula units in: 41.5 grams CaBr2
lana66690 [7]

Answer:

\text{ }1.25\times10^{23}\text{ formula units}

Explanation:

Here, we want to calculate the number of formula units in the given molecule

We start by getting the number of moles

To get the number of moles, we have to divide the mass given by the molar mass

The molar mass is the mass per mole

The molar mass of calcium bromide is 200 g/mol

Thus, we have the number of moles as follows:

\frac{41.5}{200}\text{ = 0.2075 mol}

The number of formula units in a mole is:

1\text{ mole = 6.02 }\times10^{22}\text{ formula units}

The number of formula units in 0.2075 mole will be:

0.2075\text{ }\times6.02\times10^{23}\text{ = }1.25\times10^{23}\text{ formula units}

5 0
1 year ago
Use the following image to answer the following questions. A student was performing an experiment using two identical cups made
Anettt [7]

Answer:

The water will eventually become the same temature (A)

3 0
2 years ago
can anyone help me with this and if my score is perfect i will brainlist u and follow you and please the answer must be the righ
mario62 [17]

Answer:

1.CL

2.SP

3.CL

4.SL

5.SL

6.SP

7.SL

8.CL

9.SL

10.CL

Explanation:

HOPE ITS HELP

5 0
3 years ago
Which of the following elements is the most metallic
Marysya12 [62]
We found cesium, strontium, aluminum, sulfur, chlorine, and fluorine on the periodic table. Cesium is the farthest left and the lowest, while fluorine is the farthest right and the highest, so we know they have the highest metallic character and the lowest metallic character, respectively.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the frequency of a wave traveling at 5,000 m/s with a wavelength of .002 m/cycle?
    10·1 answer
  • 9. How do changes in global temperatures affect ocean acidification? (and sea life)
    14·1 answer
  • What causes clothes from a dryer to stick together?
    7·1 answer
  • A student has a flask containing two immiscible liquids. One of the liquids is a solution of a solid in water. Describe how you
    14·2 answers
  • Thermal energy changes states because
    15·1 answer
  • Relative formula mass of ammonium sulphate?
    11·1 answer
  • A piece of aluminum has a mass of 12.0 g. When it is placed into a graduated
    11·1 answer
  • CHEMISTRY QUESTIONS // 30 POINTS
    6·1 answer
  • Is the modern periodic table arranged based on atomic mass? <br> HELPP ILL GIVE BRAINLIEST
    10·1 answer
  • How many significant figures does 7,874.9640 s have?<br> Submit Question
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!