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
KonstantinChe [14]
3 years ago
9

Can you plz help me with this question? thanks! question 6

Chemistry
1 answer:
spayn [35]3 years ago
8 0
Sorry can't see clearly
You might be interested in
Photosynthesis is? (Single choice)
olganol [36]

Answer:

B. a chemical reactions that occurs in the chloroplast of a plant.

Explanation:

7 0
3 years ago
Read 2 more answers
The molar mass of H2O is 18.01 g/mol. The molar mass of O2 is 32.00 g/mol. What mass of H2O, ins grams, must react to produce 50
Ivan

Answer:

56.28 g

Explanation:

First change the grams of oxygen to moles.

(50.00 g)/(32.00 g/mol) = 1.5625 mol O₂

You have to use stoichiometry for the next part.  Looking at the equation, you can see that for every 2 moles of H₂O, 1 mole of O₂ is produced.  Convert from moles of O₂ to moles of H₂O using this relation.

(1.5625 mol O₂) × (2 mol H₂O/1 mol O₂) = 3.125 mol H₂O

Now convert moles of H₂O to grams.

(3.125 mol) × (18.01 g/mol) = 56.28125 g

Convert to significant figures.

56.28125 ≈ 56.28

5 0
3 years ago
Radioactive decay is caused by
LenaWriter [7]
Hi there are we safe and are you all safe
I don’t know how to
I don’t know how to
I don’t know how to
I don’t know how to
6 0
2 years ago
which of the following has to remain constant to allow you to use the combine gas law for calculations?​
kap26 [50]

Answer:

The amount of gas is what I came up with

5 0
4 years ago
If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units o
kap26 [50]

Answer : The photon energy of this light in units of nanometers, (nm) is, 4.34\times 10^{-2}nm

Solution :

Formula used :

E=\frac{h\times c}{\lambda}

where,

E = energy of photon = 4.58\times 10^{-19}J

h = Planck's constant = 6.626\times 10^{-34}Js

c = speed of light = 3\times 10^8m/s

\lambda = wavelength = ?

Now put all the given values in the above formula, we get:

4.58\times 10^{-19}J=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{\lambda}

\lambda=4.3017\times 10^{-7}m=434.017\times 10^{-9}m=434.017nm=4.34\times 10^{-2}nm

conversion used : (1nm=1\times 10^{-9}m)

Therefore, the photon energy of this light in units of nanometers, (nm) is, 4.34\times 10^{-2}nm

5 0
3 years ago
Other questions:
  • 2. Why was it important to examine both the color and the streak of your minerals? Think about streak and explain why it’s calle
    14·1 answer
  • A metabolic pathway that ___ (oxidizes or reduces) an energy-rich source to produce ATP from ADP. Electrons are transferred from
    5·2 answers
  • 1. Which one is the odd one out?<br> 0 CaO<br> o Cu<br> o CO<br> o CH
    5·1 answer
  • Willam adds two values following the rules for using significant figures in computations
    14·1 answer
  • 17 Two substances in a mixture differ in density and particle size. These properties can be used to(1) separate the substances
    14·2 answers
  • When there are more electrons than protons an object has an overall<br> charge.
    15·1 answer
  • 8
    12·1 answer
  • If a scientist did an experiment to see how adding sugar to plant water would affect the plant’s growth, what would be the depen
    15·1 answer
  • Compare Dalton’s and Democritus’ ideas.
    13·1 answer
  • Which are the product(s) of this chemical reaction? FeCl 3 + 3NH 4OH -&gt;
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!