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
Vlad1618 [11]
3 years ago
15

For her school Science Fair, Alyssa designs an experiment to learn more about erosion. Her experimental set up is shown below. W

hat is the INDEPENDENT VARIABLE?
Chemistry
1 answer:
shutvik [7]3 years ago
8 0

Answer:                                                                                                                                

if I am going to answer I need the set up

Explanation:

please show the set up and I will answer the question

You might be interested in
3.8 liters of sulfur vapor, S8(g), at 921.4°C and 5.87 atm is burned in excess pure oxygen gas to give sulfur dioxide gas measur
lilavasa [31]

Answer:

116.5 g of SO₂ are formed

Explanation:

The reaction is:

S₈(g) +  8O₂(g)  → 8SO₂ (g)

Let's identify the moles of sulfur vapor, by the Ideal Gases Law

We convert the 921.4°C to Absolute T° → 921.4°C + 273 = 1194.4 K

5.87 atm . 3.8L = n . 0.082 L.atm/mol.K . 1194.4K

(5.87 atm . 3.8L) / (0.082 L.atm/mol.K . 1194.4K) = n → 0.228 moles of S₈

Ratio is 1:8, 1 mol of sulfur vapor can produce 8 moles of dioxide

Then, 0.228 moles of S₈ must produce (0.228 . 8) /1 =  1.82 moles

We convert the moles to g → 1.82 moles . 64.06 g /1mol = 116.5 g

3 0
3 years ago
Read 2 more answers
Write a balanced chemical equation (smallest integer coefficients possible) for the reaction between an acid and a base that lea
11Alexandr11 [23.1K]

Answer:

2HClO4(aq) + Ca(OH)2(aq) → Ca(ClO4)2(aq) + 2H2O(l)

Perchloric acid + Calcium hydroxide → Calcium perchlorate + Water.

Explanation:

This is a neutralization reaction where the acid, Perchloric acid reacts completely with an appropriate amount of base, aqueous Calcium hydroxide to produce salt, aqueous Calcium perchlorate and water, liquid H2O only.

During this reaction, the hydrogen ion, H+, from the HClO4 is neutralized by the hydroxide ion, OH-, from the Ca(OH)2 to form the water molecule, H2O.

Thus, it is called a neutralization reaction.

6 0
3 years ago
Calculate the new volume of 1.23 mL of a gas at 32 C is subjected to drop in temperature of 20 degrees Celsius
kotykmax [81]

Answer:

1,15mL = V₂

Explanation:

Based on Charle's law the volume is directely proportional to the absolute temperature in a gas under constant pressure. The equation is:

V₁T₂ = V₂T₁

<em>Where V is volume and T absolute temperature of a gas where 1 is initial state and 2, final state.</em>

The V₁ is 1.23mL

T₁ = 32°C + 273.15 = 305.15K

T₂ = T₁ - 20°C = 285.15K

Replacing:

1.23mL*285.15K = V₂*305.15K

<h3>1,15mL = V₂</h3>

<em />

8 0
3 years ago
The gravitational force of Earth is causing volcanoes on the moon.
yan [13]
This is true, the force can bring land up at ease
7 0
3 years ago
A certain substance, X, has a triple-point temperature of 20°C at a pressure of 2.0 atm.
nikitadnepr [17]

Answer: The statement which could possibly not be true is C -" Liquid X can exist as a stable phase at 25°C, 1atm."

Explanation:

Triple point is the point where a substance co-exist as solid liquid and gas. At any point other than the triple point, the substance exist as a single phase substance.

As shown in the diagram, Liquid cannot exist as a stable phase at 1atm( below the the triple point pressure of 2atm) as the liquid can only exist beyond the pressure of triple point.

3 0
3 years ago
Other questions:
  • The decomposition of hydrogen peroxide (H2O2(aq)) is proposed to follow a reaction mechanism of: Step 1: H2O2(aq) + Br–(aq)→H2O(
    11·1 answer
  • How are compound, elements, and mixure different
    6·1 answer
  • What is a decay series?
    10·2 answers
  • Convert 3.8 meters to cm
    8·1 answer
  • Salt dissolves easiest in
    9·2 answers
  • If a solution has a pOH of 3 what is the pH? Hint pH + pOH= 14
    7·1 answer
  • What is the qualitative analysis of (nh4) 2co3 using NaOH, HCL, BaCL2, and AgNO3​
    13·1 answer
  • A 3.82L balloon filled with gas is warmed from 204.9K to 304.8 K.
    8·1 answer
  • As the temperature of a gas increases, explain what happens to its density and why.
    6·2 answers
  • How are the properties of high-tech ceramics the same as those of traditional clay ceramics, and how are they different? Refer t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!