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
Gnom [1K]
2 years ago
5

Can you help plz HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Chemistry
2 answers:
Zolol [24]2 years ago
6 0

Answer:

sorry it wont let me

:(

Explanation:

storchak [24]2 years ago
4 0

Hello! Sorry you weren't able to get the help you needed! Hope you have a wonderful day! :)

You might be interested in
What name is given to the minimum amount of energy needed by particles for them to react when they collide?
makkiz [27]

Answer:

Activation

Explanation:

8 0
3 years ago
A blacksmith heated an iron bar to 1445 °C. The blacksmith then tempered the metal by dropping it into 42,800 mL of
Wittaler [7]

Answer:

6626 g

Explanation:

Given that:

Density of water = 1.00 g/ml, volume of water = 42800 ml.

Since density = mass/ volume

mass of water = volume of water * density of water = 42800 ml * 1 g/ml = 42800 g

Initial temperature of water = 22°C and final temperature of water = 45°C.

specific heat capacity for water = 4.184 J/g°C

ΔT water = 45 - 22 = 23°C

For iron:

mass = m,  

specific heat capacity for iron  = 0.444 J/g°C

Initial temperature of iron = 1445°C and final temperature of water = 45°C.

ΔT iron = 45 - 1445 = -1400°C

Quantity of heat (Q) to raised the temperature of a body is given as:

Q = mCΔT

The quantity of heat required to raise the temperature of water is equal to the temperature loss by the iron.

Q water (gain) + Q iron (loss) = 0

Q water = - Q iron

42800 g ×  4.184 J/g°C × 23°C = -m × 0.444 J/g°C × -1400°C

m = 4118729.6/621.6

m = 6626 g

8 0
2 years ago
A sample of element X contains 90% X-35 atoms, 8.0% X-37 atoms, and 2.0% X-38 atoms. The average atomic mass will be closest to
Ne4ueva [31]

To find average atomic mass you multiply the mass of each isotope by its percentage, and then add the values up.

35 * 0.90 + 37 * 0.08 + 38 * 0.02 = 35.22

Average atomic mass closest to 35.22 amu.

6 0
3 years ago
Read 2 more answers
Biomes Graphic Organizer
astraxan [27]

Answer/Explanation:

Refer to picture below

<u><em>Kavinsky</em></u>

3 0
2 years ago
Read 2 more answers
A natural disaster caused an ecosystem to experience a significant drop in species richness. What can you conclude about the eco
KATRIN_1 [288]
C. Theres decreased Biodiversity Most likely because of natural or human causes (deforistation)
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is true about empathy?
    13·1 answer
  • Aqueous solutions of copper (II) bromide and silver (1) acetate react to form solid
    5·1 answer
  • Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients NH3(g) + O2(g) + CH4(g)
    13·1 answer
  • 3.) this graph shows the rates of reaction in a chemical reaction with and without the addition of an enzyme
    14·1 answer
  • Which of the following symbols would be included in the noble gas notation for an element that had valence electrons in the 5s s
    14·2 answers
  • Phosgene, a poisonous gas, when heated will decompose into carbon monoxide and chlorine in a reversible reaction: COCl2 (g) &lt;
    9·1 answer
  • Which is heavier Aluminum (Al) or Iron (Fe)
    5·2 answers
  • How many moles are in 55.0 g calcium nitrate?
    9·1 answer
  • What product or ratio of properties remains constant (PxT, TxV, P/V, V/T, etx)?When you have decided, label the "constant?" colu
    7·1 answer
  • Carbon-14 is used to date previously living matter—either plant or animal. It has a half-life of 5,730 years. A plant fossil was
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!