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
Kitty [74]
3 years ago
7

Allen wants to make a box to keep foods hot. What material would be best for him to use in his box?

Chemistry
2 answers:
ser-zykov [4K]3 years ago
7 0

Answer:my answer  is correct

Explanation:

klio [65]3 years ago
4 0

Answer:

C

Explanation:

my quiz said so

You might be interested in
Water has a specific heat of 4.186 J/g*C. How much energy would be required to raise the temperature of 10 g of water by 10 C?
Sladkaya [172]

Energy(heat) required to raise the temperature of water : 418.6 J

<h3>Further explanation  </h3>

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Specific heat of water = 4.186 J/g*C.

∆T(raise the temperature) : 10° C  

mass = 10 g

Heat required :

\tt Q=m.c.\Delta T\\\\Q=10\times 4.186\times 10\\\\Q=418.6~J

8 0
3 years ago
How is technology similar to printing words on a page?
lesantik [10]
Because on both of them you are typing/writing something.
5 0
3 years ago
Read 2 more answers
what is the percent by mass concentration of a solution that contains 5.30 grams of salt dissolved in 19.7 g of water​
neonofarm [45]

Answer:

0.212

Explanation:

(5.30g) / (5.30g + 19.7g)

4 0
3 years ago
If the concentration of Mg2+ in the solution were 0.039 M, what minimum [OH−] triggers precipitation of the Mg2+ ion? (Ksp=2.06×
Elodia [21]

Answer:

2.30 × 10⁻⁶ M

Explanation:

Step 1: Given data

Concentration of Mg²⁺ ([Mg²⁺]): 0.039 M

Solubility product constant of Mg(OH)₂ (Ksp): 2.06 × 10⁻¹³

Step 2: Write the reaction for the solution of Mg(OH)₂

Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

Step 3: Calculate the minimum [OH⁻] required to trigger the precipitation of Mg²⁺ as Mg(OH)₂

We will use the following expression.

Ksp = 2.06 × 10⁻¹³ = [Mg²⁺] × [OH⁻]²

[OH⁻] = 2.30 × 10⁻⁶ M

3 0
3 years ago
Balance this equation and pick the answer with the coefficients that belong there.
geniusboy [140]

Answer:

2,3,6,1

2,3,6,1

Explanation:

The unbalanced reaction expression is given as:

  AlBr₃    +    K₂SO₄  →    KBr  + Al₂(SO₄)₃

We need to balanced this reaction equation. Our approach is a mathematical method where we assign variable a,b,c and d as the coefficients.

 aAlBr₃    +    bK₂SO₄  →    cKBr  + dAl₂(SO₄)₃

Conserving Al;  a  = 2d

                   Br:  3a  = c

                   K:   2b = c

                   S:   b  = 3d

                   O:  4b  = 12d

Let a  = 1, c = 3, d  = \frac{1}{2}  b  = \frac{3}{2}  

 Multiply through by 2 to give;

     a  = 2, b = 3, c = 6 and d  = 1

 2AlBr₃    +    3K₂SO₄  →    6KBr  + Al₂(SO₄)₃

6 0
2 years ago
Other questions:
  • Chemical reactions H2SO4 +NaHCO3=​
    13·2 answers
  • What is the minimum amount of energy a plant<br>must absorb to produce 15.0 g of glucose?​
    9·1 answer
  • The nonvolatile, nonelectrolyte cholesterol, C27H46O (386.60 g/mol), is soluble in benzene C6H6. Calculate the osmotic pressure
    10·1 answer
  • I need help assapppp
    15·1 answer
  • HELP PLEASE?! I will upvote all answers!
    11·1 answer
  • Classify unopened root beer as an element, a compound, a homogeneous mixture, or a heterogeneous mixture
    10·1 answer
  • Describe what bacteria are - their parts, how they can be good, how they can be bad, and the different types.
    14·2 answers
  • Which number is always increasing throughout your organized table?
    11·1 answer
  • You are explaining how heat transfers. Your friend insists that when you touch something cold, you become cold
    13·1 answer
  • In a 1.0×10−6 M solution of KOH(aq) at 25 °C, arrange the species by their relative molar amounts in solution.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!