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
Leni [432]
3 years ago
12

Mg metal is placed in HCl and a gas is liberated. This is an example of a

Chemistry
1 answer:
Dafna1 [17]3 years ago
8 0

Answer:

The answer to your question is: b) Chemical property

Explanation:

Physical property: is when matter changes is physical state but it does not change its composition. For example, evaporation, condensation, sublimation,  solidification, etc.

Chemical property, is when matter changes its composition because the reactants forms products.

In this question we have:

                                         Mg    +       HCl      ⇒      MgCl₂ + H₂↑

In this reaction, there are Mg and HCl, and after the reaction MgCl₂ and H₂ so, there was a change, and this reaction is a chemical change.

You might be interested in
Figure 1 (Use this figure to answer questions 6,7, and 8. Assume that the height at point
nadezda [96]

Answer:

JWBVH

Explanation:

NWSBWHSBHS

8 0
3 years ago
What is the theoretical yield of NaBr
dolphi86 [110]

The theoretical yield of NaBr given that 2.36 moles of FeBr₃ reacts is 7.08 moles

<h3>Balanced equation </h3>

2FeBr₃ + 3Na₂S → Fе₂S₃ + 6NaBr

From the balanced equation above,

2 moles FeBr₃ reacted to produce 6 moles of NaBr

<h3>How to determine the theoretical yield of NaBr</h3>

From the balanced equation above,

2 moles FeBr₃ reacted to produce 6 moles of NaBr

Therefore,

2.36 moles FeBr₃ will react to produce = (2.36 × 6) / 2 = 7.08 moles of NaBr

Therefore,

Thus, the theoretical yield of NaBr is 7.08 moles

Learn more about stoichiometry:

brainly.com/question/14735801

#SPJ1

7 0
2 years ago
Naftalin buharlaşırsa hangi olay gerçekleşir?<br><br>ACİLLLLLL!​
Eduardwww [97]

Answer:

Turkish: Bir gaza dönüşecekler ve gaz, güveler ve güve larvaları için çok zehirlidir.

English:They will turn in to a gass and the gass is very toxic to moths and moth larvae.

6 0
3 years ago
Balance this nuclear reaction by supplying the missing nucleus: 249/98 Cf +__ --&gt; 263/106 Sg +4 1/0 n
Sholpan [36]
The total atomic number must be the same on each side. The total mass number must be the same on both side. 

<span>On the RHS, for the mass number, we have 257 + 4 = 261 (the 4 comes from the 4 neutrons). That means the mass number of the missing piece on the LHS is 261 - 247 = 14. </span>

<span>One the RHS, for the atomic number we have a total of 104 since the 4 neutrons are all neutral. On the LHS, we have this: 104 - 98 = 6. </span>

<span>The missing piece is a nucleus of carbon 14. Done in your style, it is 14/6C</span>
5 0
3 years ago
Read 2 more answers
How many molecules of co2 in 97.3 grams of co2
s2008m [1.1K]

Answer:

1.33 × 10²⁴ molecules CO₂

General Formulas and Concepts:

<u>Chemistry - Stoichiometry</u>

  • Reading a Periodic Table
  • Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

97.3 g CO₂

<u>Step 2: Define conversions</u>

Avogadro's Number

Molar Mass of C - 12.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CO₂ - 12.01 + 2(16.00) = 44.01 g/mol

<u>Step 3: Convert</u>

97.3 \ g \ CO_2(\frac{1 \ mol \ CO_2}{44.01 \ g \ CO_2} )(\frac{6.022 \cdot 10^{23} \ molecules \ CO_2}{1 \ mol \ CO_2} ) = 1.33138 × 10²⁴ molecules CO₂

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules.</em>

1.33138 × 10²⁴ molecules CO₂ ≈ 1.33 × 10²⁴ molecules CO₂

8 0
3 years ago
Other questions:
  • Why is it not a good idea to use a stopper when combining two unknown substances in  test?
    15·1 answer
  • For the reaction H2SO4 + 2Na2OH4 —&gt; Na2SO4 + 2H2O
    14·1 answer
  • Chemicals A and B react according to the equation A + B → C. How will the concentrations of each component of the reaction chang
    15·2 answers
  • What does matter have to do with chemistry? How are forces involved?
    14·2 answers
  • In Chef’s famous Beef Wellington, you have to get the pastry just right. According to the recipe, Chef uses 400g of butter. But
    5·1 answer
  • Which of the following statements describes mass defect?
    10·2 answers
  • How is thermal energy transferred?
    13·1 answer
  • Calculate the number of milliliters of 0.753 M KOH required to precipitate all of the Pb2+ ions in 135 mL of 0.775 M Pb(NO3)2 so
    8·1 answer
  • Please help as soon as possible!!!
    13·1 answer
  • What’s the total charge of two nitrogen ions
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!