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
Masteriza [31]
3 years ago
14

Please help me, I am struggling please help

Chemistry
1 answer:
saw5 [17]3 years ago
8 0
Answer:

Colors are seen by burning of metal salts, for example Sodium chloride makes yellow frame.
It is very common for fireworks to contain Aluminum, Iron, Steal, Zinc or the Magnesium’s dust to create bright light.
You might be interested in
Which of the following properties of water allows an insect to “climb” up a tube? Capillary action Cohesion Adhesion Density
Alchen [17]
I think the answer is capillary action.
8 0
4 years ago
Read 2 more answers
In which relationship stage are the individuals in the following scenario?
madreJ [45]
They have began to grow apart, as their lives are changing and as they are growing older, they are growing further apart.

I would say the answer is B - Differentiating 
6 0
3 years ago
Read 2 more answers
n element has FOUR known isotopes with the following atomic masses and percentage of occurrence: 47.688 amu; 15.778% 44.000 amu;
mixer [17]
Have a gooood dayyyyy
7 0
3 years ago
Hemoglobin, an iron-containing oxygen-transport protein, is 0.349% Fe by mass.
nirvana33 [79]

Answer : The molar mass of hemoglobin is, 6.40\times 10^4g/mol

Explanation : Given,

Molar mass of iron = 55.85 g/mol

0.349 % Fe by mass that means 0.349 grams of Fe present in 100 grams of hemoglobin.

or,

\text{Percent of Fe}=\frac{4\times \text{Molar mass of Fe}}{\text{molar mass of hemoglobin}}\times 100

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

0.349=\frac{4\times 55.85g/mol}{\text{molar mass of hemoglobin}}\times 100

\text{molar mass of hemoglobin}=64011.46g/mol=6.40\times 10^4g/mol

Thus, the molar mass of hemoglobin is, 6.40\times 10^4g/mol

3 0
4 years ago
How many moles of hcl are produced from a reaction with 6.2 moles of h2 given the following equation
Bas_tet [7]
It would be 12.4 moles of HCL because you multiply 6.2 by how many moles of HCL in te equation then divide it by how many moles of h2 in the equation so you multiple 6.2 by 2 moles because there’s two moles of HCL which gives you 12.4 then you divide it by one because in the equation there is only 1 mole of H2
5 0
4 years ago
Other questions:
  • What 2 elements are present in all organic compounds?
    11·1 answer
  • For water droplets to form what must be present
    6·1 answer
  • HELP WITH THIS PLZ <br> I NEED IT FAST!!!!!!!
    8·1 answer
  • How does a sarcity affect a society's economic decions
    8·2 answers
  • Please answer number 3 and 4
    9·1 answer
  • The color blue has a shorter wavelength than the color orange. Blue has _____.
    10·1 answer
  • What would be the covalent Lewis structure?
    12·1 answer
  • Which of the following arrangements of the visible colors of light is in the correct order of increasing energy?
    15·1 answer
  • Which word best describes a substance where its atoms and molecules are moving very fast?
    7·1 answer
  • It consists of two lobes that contain pollen sacs and pollen grains.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!