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
In-s [12.5K]
3 years ago
6

This chart shows the experimental design of four students who are all observing what kind of bird seed birds tend to eat

Chemistry
1 answer:
SashulF [63]3 years ago
3 0

Answer:

student 2 i took the quiz

Explanation:

You might be interested in
All of the atoms of argon have the same?
JulijaS [17]
2 is right i would think
4 0
3 years ago
Read 2 more answers
Tarnish on tin is the compound SnO. A tarnished tin plate is placed in an aluminum pan of boiling water. When enough salt is add
natulia [17]

Answer:

1.52V

Explanation:

Oxidation half equation:

2Al(s)−→2Al^3+(aq) + 6e

Reduction half equation

3Sn2^+(aq) + 6e−→3Sn(s)

E°cell= E°cathode - E°anode

E°cathode= −0.140 V

E°anode= −1.66 V

E°cell=-0.140-(-1.66)

E°cell= 1.52V

5 0
3 years ago
What intermolecular forces are present in each of the substances?
Nesterboy [21]
What intermolecular forces are present in each of the substances? CH4,C3H8,CH3F,HF, C6H5OH (dispersion forces<span>, </span>dipole-dipole forces<span>, or </span>hydrogen bonding<span>);A sample of ideal gas at room temperature occupies a volume of 34.0L at a pressure of 782torr .</span>
4 0
3 years ago
Read 2 more answers
What mass of sodium chloride (NaCl) forms when 7.5 g of sodium carbonate (Na2CO3) reacts with a dilute solution of hydrochloric
Gre4nikov [31]

 The mass of NaCl  formed  is 8.307  grams


<u><em> calculation</em></u>

step 1: write the equation  for reaction

Na₂CO₃  + 2HCl → 2 NaCl  +CO₂ +H₂O

Step 2: find the  moles of Na₂CO₃

moles = mass/molar mass

 The  molar mass of Na₂CO₃  is = (23 x2) + 12 + ( 16 x3) = 106 g/mol

moles  = 7.5 g/106 g/mol =0.071 moles

Step 3: use the  mole ratio to determine the  mole of NaCl

Na₂CO₃:NaCl  is  1:2  therefore the moles of NaCl =0.07  x2 =0.142 moles


Step 4:  calculate mass  of NaCl

mass= moles x molar mass

the molar  mass of NaCl= 23 +35.5 =58.5 g/mol

mass  = 0.142  moles x 58.5 g/mol =8.307  grams

8 0
3 years ago
Read 2 more answers
Write word equation for reaction between sodium and sulphur​
White raven [17]

Answer:

2Na + S —> Na2S

Hope this helps.

4 0
3 years ago
Other questions:
  • What describes redshift
    5·1 answer
  • Solid potassium hydroxide is slowly added to 175 mL of a 0.0621 M cobalt(II) nitrate solution. The concentration of hydroxide io
    13·1 answer
  • What is the oxidation state of each element in FeBr2
    14·2 answers
  • What is the molecular description of diffusion?
    6·1 answer
  • A sample of a substance has a mass of 78.9 g and a volume of 84.3 cm3 what is the density?
    12·1 answer
  • How many liters of water need to be added to 0.5 moles of CaCl2 to make a 0.20 M solution of CaCl2?
    12·1 answer
  • The simplest method to convert an alcohol to an alkyl halide is by reacting the alcohol with concentrated HCl, HBr, or HI. Compl
    5·1 answer
  • How much did Britain’s royal society of chemistry estimate that it would cost to make Benedict cumberpatch
    6·1 answer
  • What could cause a build up of algae which would decrease the amount of oxygen available for the organisms in the river? protect
    13·1 answer
  • Which compound when dissolved in water, will have the lowest freezing point?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!