answer.
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
Rudik [331]
2 years ago
6

When magnesium ribbon is placed in sulfuric acid, a chemical reaction takes place and heat energy is given off. Liang and Naraba

atar are planning an investigation into the effect of the length of magnesium ribbon on the increase in temperature. They decide to carry out some preliminary work.
Explain what preliminary work they could do and how this would help them plan their investigation.

please give a genuine aswer ​
Chemistry
1 answer:
kolezko [41]2 years ago
6 0

Answer:

this is the answer

I hope it helps you although

You might be interested in
The terms motif (fold) and domain describe levels of protein organization more complicated than primary or secondary structure.
posledela

Answer:

Each specific property of motif and domain is explained.

Explanation:

Domain;

  • May retain a 3D structure when separated from rest of the protein.          
  • Unit of tertiary structure because alpha helix and beta sheets are units of secondary structure.
  • Stable globular units like pyruvate kinase
  • May be distinct functional units in a protein

Motif;

  • Repetetive supersecondary structure because they contain cluster of secondary structure.
  • Beta Alpha Beta unit is an example of motif
  • Clusters of secondary structure

Both Motif and Domain;

  • Stabilized by hydrophobic interactions like hydrogen bonding stabilize the both.
  • Depends on primary structure like the arrangement of amino acid in polypeptide chain determine the secondary and tertiary structure of proteins.

8 0
2 years ago
How many capsules containing 75mg of Tamiflu could be produced from 155g of star anise.?
jeyben [28]
From the question you will find that:
one capsule of tamiflu is obtained from 2.6 g of star anise.
1 capsule   = 2.6 g tamiflu
? capsules = 155 g tamiflu
by cross multiplication = \frac{(1 x 155)}{2.6} = 59 capsules
7 0
2 years ago
A chemical engineer must report the average volume of a certain pollutant produced by the plants under her supervision. Here are
AfilCa [17]

Answer:

The chemical engineer should report average volume of 15.34 L.

Explanation:

Volume of Macon = 0.519 L

Volume of Allegheny = 44.67 L

Volume of Doheny = 0.826 L

Average of the volume of the pollutants:

\frac{0.519 L+44.67 L+ 0.826L}{3}=\frac{46.015 L}{3}=15.33833 L

The rule apply for the addition and subtraction is :

The least precise number present after the decimal point determines the number of significant figures in the answer.

Here the 44.67  has two significant digit after decimal point.So the answer will be reported as in with 2 significant figures after decimal point.

15.33833 L\approx 15.34 L

The chemical engineer should report average volume of 15.34 L.

5 0
2 years ago
A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68 atm
vlabodo [156]
Add the Pressure of neon and argon that is 0.68 +0.35= 1.03
Total pressure that is 1.25 -1.03=0.22 atm
5 0
2 years ago
Read 2 more answers
The equation below shows the products formed when a solution of silver nitrate (AgNO3) reacts with a solution of sodium chloride
d1i1m1o1n [39]
I would say that the answer has to be C
Since there is no change in mols on both sides of the equation the mass is constant
3 0
2 years ago
Read 2 more answers
Other questions:
  • Which of these elements has the least attraction for electrons ina chemical bond?(1) oxygen (3) nitrogen(2) fluorine (4) chlorin
    7·2 answers
  • A certain element X has four isotopes. 4.350% of X has a mass of 49.94605 amu. 83.79% of X has a mass of 51.94051 amu. 9.500% of
    8·1 answer
  • A 3.50 g sample of rice is burned in a bomb calorimeter containing 1680 g of water. The temperature of the water increases from
    5·1 answer
  • Calculate the nuclear binding energy for 5525mn in megaelectronvolts per nucleon (mev/nucleon). express your answer numerically
    10·1 answer
  • When C2H5Cl(g) is burned in oxygen, chlorine gas is produced in addition to carbon dioxide and water vapor. 5145 kJ of heat are
    8·1 answer
  • Nicolaas constructed a working model of the hydrologic cycle during science class. He used an open flame, liquid water, two larg
    7·2 answers
  • Give two examples (i.e. list 2 elements that are examples) of: a. an atom with a half-filled subshell b. an atom with a complete
    13·1 answer
  • 5. A Dumas bulb is filled with chlorine gas at the ambient pressure and is found to contain 7.1 g of chlorine when the temperatu
    12·1 answer
  • To calculate the relative age of rocks, geologists use the rate of radioactive decay of isotopes present in their samples. What
    6·1 answer
  • What else is produced during the combustion of butane, C4H10?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!