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
Rashid [163]
3 years ago
9

PLEASE HELP!!!

Chemistry
2 answers:
Nataly [62]3 years ago
7 0
1. research question
2. background research
3. hypothesis
4. <span>Controlled experiment 
5. data analysis 
6. data collection
7. conclusion</span>
Nana76 [90]3 years ago
3 0

Answer:

Step 1. Asking a research question

Step 2. Do background research

Step 3. Propose a hypothesis

Step 4. Perform Controlled experiment  

Step 5. Collection of data

Step 6. Analysis of data

Step 7. Conclusion

Explanation:

A scientific method is a systematic approach to understand and explain the natural phenomenon.

The method includes the steps which should be followed in the sequence which begins with making an observation thorough senses, asking questions which could be answered, doing background research and proposing a well-educated guess called hypothesis which could be tested.

Then the experiment is performed to test the hypothesis which provides results which could be collected and analysed. Conclusions, are drawn from the results and must be communicated to the scientific community for verification.

You might be interested in
Jeffrey is on his skateboard and starts skating down a ramp. Ten seconds later he is travelling at
AfilCa [17]

Answer: 2m/s^2

Explanation:

Velocity of skateboard = 20.0 m/s.

Time taken = Ten seconds (10 s)

Acceleration ​= ?

Recall that acceleration is the change in velocity of a body per unit time.

i.e Acceleration = (velocity / Time)

Acceleration = 20.0m/s ➗ 10 s

Acceleration = 2m/s^2

Thus, Jeffrey acceleration was 2m/s^2

7 0
4 years ago
A neutral atom of Cl-37 has
Ostrovityanka [42]

Answer:

17 protons, 20 neutrons, and 17 electrons​.

Explanation:

A periodic table can be defined as the standard arrangement of chemical elements by atomic number, electronic configuration and chemical properties in a tabular form.

Generally, a proper representation of the mass number and atomic number of chemical elements is key and very important in chemistry.

Furthermore, as a rule, it should be noted that the mass number (nucleon number) is always larger than the atomic number(number of proton).

The mass number of this neutral atom of Cl-37 is 37 and we know that the atomic number (number of protons) of chlorine is 17. Also, the atomic number of an element is equal to the number of its electrons.

A neutral atom of Cl-37 has 17 protons, 20 neutrons, and 17 electrons.

Hence, a neutral atom of Cl-37 can be identified based on its number of protons because it represent its atomic number, which is what is used to differentiate an atom of an element from the atom of another chemical element.

6 0
3 years ago
Complete the following equation: 250/96Cm ——-&gt; ? + 4 1/0n
vfiekz [6]

Answer:

²⁵⁰₉₆Cm → ²⁴⁶₉₆Cm + 4 ¹₀n

Explanation:

The complete equation is;

²⁵⁰₉₆Cm → ²⁴⁶₉₆Cm + 4 ¹₀n

  • The above equation is an example of a nuclear reaction in which unstable atom of Cm emits neutrons to become more stable.
  • Radioactive isotopes undergo radioactivity or decay to attain stability, they do so by emitting particles such as alpha, beta particles or a neutron.
  • An atom of Cm-250 undergoes decay and emits four neutrons to form an atom of Cm-246.
3 0
3 years ago
Is a small whole number that appears in front of a formula in a chemical equation?
Bezzdna [24]
No. It appears behind the equation
4 0
3 years ago
Can someone help me, please?
puteri [66]
The temperature at which the oven it set it should be.
3 0
3 years ago
Other questions:
  • Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group.
    10·2 answers
  • What is the value (in V) of Eºcell for the following reaction? Zn2+ (aq) + Pb (s) → Zn (s) + Pb2+ (aq)
    10·1 answer
  • Ag2O(s) → 2Ag(s) + ½ O2(g) ΔH° = 31.05 kJ Which statements concerning the reaction above are true? (1) heat is released (2) heat
    14·1 answer
  • Starting with 0.657 g of lead(II) nitrate, a student collects 0.925 g of precipitate. If the calculated mass of precipitate is 0
    6·1 answer
  • Help Ill give you the brainiest answer thing please just give me the right answer
    10·2 answers
  • Look at the graph of reaction rate versus substrate concentration for an enzyme. In which region does the reaction rate remain c
    6·1 answer
  • HELP PLS ILL GIVE BRAINLIEST AND 40 POINTS!!!
    13·1 answer
  • En que flota el osmio
    6·1 answer
  • What happens when you drop an egg on the ground from about 6 ft high?
    6·1 answer
  • How many grams are in 1.2 moles of neon
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!