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
den301095 [7]
3 years ago
5

Please help me I really need help

Chemistry
2 answers:
Mars2501 [29]3 years ago
8 0

Answer:

c

Explanation:

chemically changed

hope it helps!!

fredd [130]3 years ago
8 0

Answer:

Pretty sure it is being Chemically Changed

Explanation:

You might be interested in
For the following reaction, 41.0 grams of sulfuric acid are allowed to react with 36.5 grams of zinc hydroxide. What is the maxi
Ilya [14]

The FORMULA for the limiting reagent is ZnOH_2.

4.27 grams of reactant remains after the reaction is complete.

<h3>What is a limiting reagent?</h3>

The limiting reagent is the reactant that is completely used up in a reaction and thus determines when the reaction stops.

Given data:

Mass of sulfuric acid = 41.0 grams

Molar mass of sulfuric acid = 98.08 g/mol

Mass of zinc hydroxide = 36.5 grams

Molar mass of zinc hydroxide = 99.424 g/mol

Step 1:moles sulfuric acid = mass sulfuric acid / molar mass sulfuric acid

moles sulfuric acid = 41.0 grams / 98.08 g/mol

moles sulfuric acid = 0.41 moles

Step 2: moles of zinc hydroxide

moles zinc hydroxide = 36.5 grams / 99.424 g/mol

moles zinc hydroxide =0.367 moles

Step 3: Calculate limiting reactant

zinc hydroxide is the limiting reactant. It will completely be consumed.

There will remain 0.41 moles - 0.367 moles = 0.043 moles

This is 0.043 moles x 99.424 g/mol

= 4.27 grams

Learn more about the limiting reagent here:

brainly.com/question/14155328

#SPJ1

7 0
2 years ago
Calculate the amount of heat needed to boil 41.1 g of water (H2O), beginning from a temperature of 84.7 C . Be sure your answer
Levart [38]

Explanation:

We need to go through to stages to boil 41.1 g of water. We have to heat the sample of water from 84.7 °C to 100 °C (the boiling point) And then we have to provide enough heat to boil all the sample of water.

<em>a) Heating from 84.7 °C to 100 °C:</em>

This is calculated using the formula:

Q₁ = m * C * ΔT

Where Q₁ is the amount of heat, m is the mass of the sample, C is the specific heat of water and ΔT is the temperature change. We already know these values:

m = 41.1 g

C = 4.184 J/(g*°C)

ΔT = Tfinal - Tinitial = 100 °C - 84.7 °C

ΔT = 15.3 °C

Replacing these values we can get the amount of heat necessary for the first step:

Q₁ = m * C * ΔT

Q₁ = 41.1 g * 4.184 J/(g°C) * 15.3 °C

Q₁ = 2631 J

<em>b) Boiling 41.1 g of water:</em>

To find the amount of heat that we need to provide to the sample of water to completely boil it we can use this formula:

Q₂ = m * Cv

Where Cv is the latent heat of vaporization.

Cv = 2256 J/g

Q₂ = m * Cv

Q₂ = 41.1 g * 2256 J/g

Q₂ = 92721 J

<em>c) Total amount of heat:</em>

Qtotal = Q₁ + Q₂

Qtotal = 2631 J + 92721 J

Qtotal = 95352 J = 95400 J

Qtotal = 95.4 kJ

Answer: The amount of heat needed to boil the sample of water is 95.4 kJ or 95400 J.

8 0
2 years ago
Is the electron configuration 1s22s22p5 for Oxygen correct?
joja [24]
No that’s is the electronic configuration for fluorine.
7 0
3 years ago
Unit 2 Test
Dafna11 [192]

Answer:

the answer to this question is producer

3 0
3 years ago
ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Rasek [7]

Answer:

I think its the first one

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • According to the kinetic-molecular theory, the collision between two ideal gas particles is a result of
    12·2 answers
  • What is the element with the symbol Ba?​
    10·2 answers
  • A particle has 3 units of positive charge and 1 unit of negative charge.What is the overall charge of the particles?
    6·1 answer
  • If 7.50 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of iron(III) oxide will be produced?
    15·1 answer
  • Which of the following describes an impact of the specific heat of water on the planet?
    15·1 answer
  • Which of the following elements form cations (positively charged ions) readily? C, O, Na, Fe, As, Br, K
    11·2 answers
  • Which statement is true according to the kinetic theory?
    11·1 answer
  • When most fuels burn, water and carbon dioxide are the two main products. However, water and carbon dioxide are not the products
    11·2 answers
  • In solid methane, the forces between neighboring CHA molecules are best characterized as
    12·1 answer
  • What is the pow of a<br> 2.1 x 10-6 M OH-solution?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!