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
Travka [436]
3 years ago
13

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Chemistry
1 answer:
Alenkasestr [34]3 years ago
8 0
Hello,

this is true, The law of reflection states that the angle of incidence is equal to the angle of reflection.
You might be interested in
Functions of the following ingredients in the production of dairy products.ii. Enzyme in cheese​
Serjik [45]

Answer:

sugar in melk

Explanation:

cow eat sugar then make sugar :)

5 0
3 years ago
2NH3 + MgSO4 + 2H20-→ Mg(OH)2 + (NH4)2SO4
gayaneshka [121]
Chemistry msg for 78 mgSO 5.4 answer is NH3
7 0
3 years ago
Read 2 more answers
What is the total number of atoms in the molecule HNO3?​
melomori [17]

Answer:

We know that, composition of HNO3 is Hydrogen, Nitrogen and oxygen. Total number of atoms = 3+1+1=5 atoms are present in 1 molecule of HNO3.

5 0
3 years ago
At a certain temperature the rate of this reaction is first order in HI with a rate constant of 0.0632 s
kirza4 [7]

Answer:

28.037\ \text{s}

Explanation:

[A]_0 = Initial concentration = 1.28 M

[A] = Final concentration = 0.17[A]_0

k = Rate constant = 0.0632 s

t = Time taken

For first order reaction we have the relation

kt=\ln\dfrac{[A]_0}{[A]}\\\Rightarrow t=\dfrac{\ln\dfrac{[A]_0}{[A]}}{k}\\\Rightarrow t=\dfrac{\ln\dfrac{[A]_0}{0.17[A]_0}}{0.0632}\\\Rightarrow t=28.037\ \text{s}

Time taken to reach the required concentration would be 28.037\ \text{s}.

8 0
3 years ago
The percent yield of a reaction between elemental zinc and an aqueous solution of 0.50 M hydro-chloric acid is known to be 78.0%
Naddik [55]

Answer:

1.3 × 10³ mL

Explanation:

Let's consider the following reaction.

Zn + 2 HCl → ZnCl₂ + H₂

The percent yield is 78.0%. The real yield (R) of zinc chloride is 35.5 g. The theoretical yield (T) of zinc chloride is:

35.5 g (R) × (100 g T/ 78.0 g R) = 45.5 g T

The molar mass of zinc chloride is 136.29 g/mol. The moles corresponding to 45.5 g of zinc chloride is:

45.5 g × (1 mol/ 136.29 g) = 0.334 mol

The molar ratio of HCl to ZnCl₂ is 2:1. The moles of HCl that react with 0.334 moles of ZnCl₂ are 2 × 0.334 mol = 0.668 mol.

We need 0.668 moles of a 0.50 M HCl solution. The volume required is:

0.668 mol × (1000 mL/0.50 mol) = 1.3 × 10³ mL

3 0
3 years ago
Other questions:
  • The substances present before a chemical reaction takes place are called?
    7·2 answers
  • 1.986 x 10^6 in standard notation? science question
    11·1 answer
  • Can you look people up on brainly
    7·1 answer
  • A 30.7 mL, 1.66 M KMnO4 solution is mixed with 16.7 mL of 0.704 M KMnO4 solution. Calculate the concentration of the final solut
    15·1 answer
  • The electronegativity difference between two atoms was 2.3. What type of bond would most likely form between them.
    14·1 answer
  • K₂SO₄(aq) + SrI₂(aq) → 2KI(aq)+ SrSO₄(s) net ionic equation
    12·1 answer
  • Which substance increases in solubility as the temperature decreases?
    6·2 answers
  • Where does the Earth get most of its energy from?
    5·2 answers
  • LOTS OF POINTS PLZ HELP!!!!!<br><br><br> ...I got the first two for ya...
    15·1 answer
  • A more electronegative atom A) will have more attraction to the electrons in a chemical bond. B) is more likely to lose an elect
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!