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
kramer
3 years ago
6

Plz help me with 18 guys tysm!

Chemistry
1 answer:
kap26 [50]3 years ago
5 0
A convergent boundary is when two plates push against each other. a transform boundary is when they slide past each other. both can couse mid ocean ridges.
You might be interested in
Consider the compound hydroxyapatite, Ca10(PO4)6(OH)2. Name each ion present, give the charge of each ion and show that the form
emmainna [20.7K]
Ca₁₀(PO₄)₆(OH)₂  or  Ca(OH)₂·3Ca₃(PO₄)₂

PO₄³⁻   phosphate ion
OH⁻     oxyhydroxide ion
Ca²⁺     calcium ion

10*(+2)  +  6*(-3)  +  2*(-1) = 0
 10Ca²⁺      6PO₄³⁻      2OH⁻
7 0
3 years ago
SCIENTIFIC METHOD
hammer [34]
Smhsmz bomb b V mzvznshx
4 0
3 years ago
Read 2 more answers
Places with _______ altitude will have ______ climates. low; cold high; cold low; freezing high; warm
vlada-n [284]
Places with high altitudes will have cold climates.
6 0
3 years ago
Read 2 more answers
When a 2.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of 1.28 kJ ⋅ K − 1 , the tempe
Alchen [17]

Answer : The molar heat of solution of KCl is, 17.19 kJ/mol

Explanation :

First we have to calculate the heat of solution.

q=c\times (\Delta T)

where,

q = heat produced = ?

c = specific heat capacity of water = 1.28kJ/K

\Delta T = change in temperature = 0.360 K

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

q=1.28kJ/K\times 0.360K

q=0.4608kJ=460.8J

Now we have to calculate the molar heat solution of KCl.

\Delta H=\frac{q}{n}

where,

\Delta H = enthalpy change = ?

q = heat released = 460.8 J

m = mass of KCl = 2.00 g

Molar mass of KCl = 74.55 g/mol

\text{Moles of }KCl=\frac{\text{Mass of }KCl}{\text{Molar mass of }KCl}=\frac{2.00g}{74.55g/mole}=0.0268mole

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

\Delta H=\frac{460.8J}{0.0268mole}

\Delta H=17194.029J/mol=17.19kJ/mol

Therefore, the molar heat of solution of KCl is, 17.19 kJ/mol

7 0
3 years ago
Write short note on<br>vegetation ​
bulgar [2K]

Answer:

vegetation is highly effective although we used it and it is surrounded around us a note would be that vegetation is general term for plant life of a region and there are 5 different types

Explanation:

6 0
3 years ago
Other questions:
  • Match each alkane names and structures.
    8·1 answer
  • Two springs with spring constants k1 and k2 are connected together. With mass m1 attached, the springs have
    15·1 answer
  • Is the erbium transparent, translucent or opaque?
    6·1 answer
  • What does pure substance mean in chemistry?
    9·1 answer
  • Which pair of substances would most likely result in the production of a gas when reacting to an acid
    9·2 answers
  • I need help. Will mark brainliest
    12·2 answers
  • Help me out please this is my last attempt on the quiz
    8·2 answers
  • The ionization potential of Be atom is more than expected because it has -
    14·2 answers
  • The atoms of most elements are reactive. Describe atoms that are
    10·1 answer
  • What ion is formed When a atom Of mercury (hg) Loses two electron
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!