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
Crank
2 years ago
10

What is a surface that reflects a color of 500 nanometer wavelength?

Chemistry
1 answer:
Vinvika [58]2 years ago
8 0

Answer:

something cyan colored?

You might be interested in
MULTIPLE CHOICE
adelina 88 [10]

Answer:

C 2

Explanation:

2Nal + Cl2 → 2NaCl + I2

This is balanced equation

6 0
2 years ago
Name a physical property of gold (Au)
Lana71 [14]
Gold is a soft metal. Both malleable and ductile
7 0
3 years ago
Read 2 more answers
When a diprotic acid is titrated with a strong base, and the Ka1 and Ka2 are significantly different, then the pH vs. volume plo
dezoksy [38]

Complete question is;

When a diprotic acid is titrated with a strong base, and the Ka1 and Ka2 are significantly different, then the pH vs. volume plot of the titration will have

a. a pH of 7 at the equivalence point.

b. two equivalence points below 7.

c. no equivalence point.

d. one equivalence point.

e. two distinct equivalence points

Answer:

Option E - Two Distinct Equivalence points

Explanation:

I've attached a sample diprotic acid titration curve.

In diprotic acids, the titration curves assists us to calculate the Ka1 and Ka2 of the acid. Thus, the pH at the half - first equivalence point in the titration will be equal to the pKa1 of the acid while the pH at the half - second equivalence point in a titration is equal to the pKa2 of the acid.

Thus, it is clear that there are two distinct equivalence points.

4 0
3 years ago
Name the part in red:<br> H2 + O2 -&gt; H2O
Lorico [155]

Answer:subscript

Explanation:

7 0
3 years ago
The compound adrenaline contains 56.7 % c, 6.56 % h, 28.37% o and 8.28 % n by mass. what is the empirical formula for adrenaline
-Dominant- [34]

Answer:- An empirical formula of adrenaline is C_8H_1_1O_3N .

Solution:- Convert given percentages to moles and then calculate the mol ratio to get the simplest whole number ratio of moles of atoms which is the empirical formula of the compound.

C=\frac{56.7}{12} = 4.725 mol

H=\frac{6.56}{1} = 6.56 mol

O=\frac{28.37}{16} = 1.773 mol

N=\frac{8.28}{14} = 0.591 mol

let's calculate the mol ratio now. To calculate the mole ratio, we divide the moles of each by moleso f N as it's the least one:

C=\frac{4.725}{0.591} = 8

H=\frac{6.56}{0.591} = 11

O=\frac{1.773}{0.591} = 3

N=\frac{0.591}{0.591} = 1

So, an empirical formula of adrenaline is C_8H_1_1O_3N .


3 0
3 years ago
Other questions:
  • A mixture of uneven distribution and easy separation is called_____. homogeneous heterogeneous a solution a pure substance
    7·2 answers
  • The Reynolds number, Re, is a dimensionless number used to characterize different flow regimes in a fluid. The Reynolds number c
    11·1 answer
  • What is usually released as a product in a combustion reaction?
    14·1 answer
  • Explain how index minerals allow a scientist to understand the history of a metamorphic rock?
    15·2 answers
  • If a gas is initially at a pressure of 9 atm, a volume of 21 liters, and a temperature of 253 K, and then the pressure is raised
    13·1 answer
  • How many moles of O2 can be formed from the decomposition of 2.6 mol KClO3?
    5·1 answer
  • What type of Energy is stored in chemical bonds?
    7·1 answer
  • Most elements on the periodic table are
    14·2 answers
  • Chemical molecules that impart positional information through their concentration gradient are called
    11·2 answers
  • In the laboratory, a student dilutes 18. 9 ml of a 10. 0 m perchloric acid solution to a total volume of 250. 0 ml. what is the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!