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
prisoha [69]
3 years ago
12

Help asap!!

Chemistry
1 answer:
Daniel [21]3 years ago
6 0

Answer:

hi your pretty

Explanation:

You might be interested in
Which of the following statements is not correct?
velikii [3]
To answer the question above, multiply the given number of moles by the molar masses.

(A)     (0.20 mole) x (32 g / 1 mole) = 6.4 grams O2
(B)     (0.75 mole) x (62 g / 1 mole) = 46.5 grams H2CO3
(C)     (3.42 moles) x (28 g / 1 mole) = 95.7 grams CO
(D)     (4.1 moles) x (29.88 g / 1 mole) = 122.508 g Li2O

The answer to the question above is letter D.
4 0
3 years ago
1. If you have 25% radioactive parent atoms in a mineral crystal, and 75% daughter atoms, how many half-lives have passed?
Andreyy89
Too freaking many... or maybe not many at all

5 0
3 years ago
How many bromine atoms are present in 37.5 g of CH2Br2?
ella [17]
<span>37.8 g CH2Br2 X (1 mol CH2Br2 / 173.83 g) = 4.60X10^-3 mol CH2Br2

4.60X10^-3 mol CH2Br2 X (2 mol Br / 1 mol CH2Br2) X 6.02X10^23 atoms/mol = 5.54X10^21 bromine atoms</span>
5 0
3 years ago
What is the (a) frequency and (b) wavelength (in nm) of a source of purple light at the edge of the visible light spectrum?
stiv31 [10]

Answer: a) Frequency=666\times10^{12}Hz-789\times10^{12}Hz

b) Wavelength=380nm-450nm

Explanation: Visible light is a form of electromagnetic wave.

Wavelength is defined as the distance between two successive crests of a wave. It is represented as symbol \lambda.

Frequency is defined as the number of complete cycles happening per second. It is represented by the symbol \nu.

Wavelength and Frequency follow inverse relation,

                                              \nu=\frac{c}{\lambda}

where, c = speed of light = 3\times10^8m/s

Wavelength and frequency of a wave is usually expressed in a range.

a)  \text{Frequency of visible light}=666\times10^{12}Hz-789\times10^{12}Hz

b) \text{Wavelength of visible light}=380nm-450nm


7 0
3 years ago
What is the electron configuration for lithium​
Oduvanchick [21]

Answer:

2,1

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • A substance with a pH less than 7
    11·2 answers
  • When starch is broken down it becomes _________.
    8·2 answers
  • Compute diffusion coefficients for the interdiffusion of carbon in both (a) α-iron (BCC) and (b) γ-iron (FCC) at 800.˚C. Assume
    6·1 answer
  • Is calcium and chlorine am Ionic bond?
    6·2 answers
  • When an atom, ion, or molecule of a reactant switches places with an unpaired reactant, the type of reaction is called _________
    7·1 answer
  • This increase in blood pHpH due to hyperventilation disrupts O2O2 transport by causing the deprotonation of various residues of
    11·1 answer
  • A ring made of pure gold contains 5.29 x 1022 atoms. How many moles are in the ring?
    6·1 answer
  • What is the difference between a divide and a drainage basin?
    12·2 answers
  • What is the correct IUPAC name for CuNO₃?
    7·2 answers
  • How do coastal sand dunes form in Florida?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!