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Juliette [100K]
4 years ago
10

What is one important step to complete before starting a laboratory experiment?

Chemistry
2 answers:
gtnhenbr [62]4 years ago
6 0

Answer:

ask the teacher

Explanation:

took the test got a 90 i got something wrong but it was a hard question-

Nimfa-mama [501]4 years ago
3 0

Answer:

Ask the teacher

Explanation:

Ask if you have to clean up or if you are not prepared for an experiment

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Why do many parasites eventually need new hosts?
Maslowich
Parasite lives off the host so if the host dies, they are forced to look for another host. They can also leave its host if the parasite kills its host when it finds a new host, because if the parasite does not have a host its dies off.
Hope this can help explain
6 0
4 years ago
How many TOTAL ELECTRONS are in the compound CO2?
Liula [17]

Answer:

22 electrons are in the compound CO2. And the correct answer is Phosphorus tribromide.

Explanation:

7 0
3 years ago
Is this equation balanced and in the lowest form?<br><br> 4NH3 → 2N2 + 6H2
GREYUIT [131]

Answer:

It's balanced but not in the lowest form

Explanation:

The actual equation is given by

\\ \sf\longmapsto 2NH_3\longrightarrow N_2+3H_2

8 0
3 years ago
What is the basic organizing feature of the periodic table of elements?
WITCHER [35]
<span>The organizational characteristics of the periodic table of the elements are within a system where all known elements are classified. They are placed from left to right and top to bottom in increasing order of their atomic numbers. The elements are arranged in seven horizontal rows called periods, and in 18 vertical columns called groups or families. Down and to the left increases the atomic radius and the ionic radius. Upwards and to the right increases ionization energy, electron affinity and electronegativity.</span>
5 0
3 years ago
0 ml of a 1.20 m solution is diluted to a total volume of 228 ml. a 114-ml portion of that solution is diluted by adding 111 ml
ozzi
54.0 ml of a 1.2 m solution was diluted to a total volume of 228 ml
USing dilution equation
M1V1 = M2V2
Where M1V1 is before dilution while M2V2 is after dilution.
Therefore;
M1= 1.20 M, V2= 54 ml,  
M2=              V2 = 228 ml

1.20 M × 54 ml = M2 × 228 ml
  M2 = (1.2 ×54)/ 228 ml
       = 0.2842 M

0.2842 × 114 ml = M2 × (114 +111)
      M2 = (0.2842 ×114)/ 225
            = 0.143995
            = 0.144 M

3 0
3 years ago
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