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
marin [14]
3 years ago
5

When driving your car, you hear a squeal every time you press the brakes. You decide the problem is that there's a mouse trapped

in the brakes.
This is an example of a _____.

hypothesis
law
theory
Chemistry
2 answers:
mestny [16]3 years ago
5 0

Answer:

Hypothesis

Explanation:

arsen [322]3 years ago
4 0
Hypothesis because law don’t make sense and theory is for something that already has data behind it. In this case you don’t do it’s not hypothesis
You might be interested in
A liquid sample, with a density of .0915 g/mL has a mass of 17.7 grams.
Arlecino [84]

The relation between density, mass and volume is

Density = \frac{Mass}{Volume}

1) to calculate = volume

given:

Density = 0.0915 g/ mL

mass = 17.7 grams

formula used:

Density = \frac{Mass}{Volume}

Thus

Volume Volume = \frac{Mass}{Density} = \frac{17.7 g}{0.915 \frac{g}{mL} }  = 193.44 mL

Answer: 193.44 mL

2) the mass of sample will be

mass = density X volume = 0.0915\frac{g}{mL} X 76.5 mL = 6.99 = 7 g

Answer: 7 g

5 0
3 years ago
Is exploding dynamite a chemical or physical property?
ankoles [38]
<span>the answer would be chemical</span>
5 0
3 years ago
How can you get unconscious
sesenic [268]
When sudden changes occurs in the body. lack of blood flow in the brain
6 0
3 years ago
Dissolved hydrofluoric acid reacts with dissolved sodium hydroxide to form water and aqueous sodium fluoride
GalinKa [24]

Answer:

HF(aq)+NaOH(aq)→NaF(aq)+H2O(l)

Explanation:

Complete question

Dissolved hydrofluoric acid reacts with dissolved sodium hydroxide to form water and aqueous sodium fluoride. What is the net ionic equation

Equilibrium equation between the undissociated acid and the dissociated ions

HF(aq)⇌H+(aq)+F−(aq)

Sodium hydroxide will dissociate aqueous solution to produce sodium cations, Na+, and hydroxide anions, OH−

NaOH(aq)→Na+(aq)+OH−(aq)

Hydroxide anions and the hydrogen cations will neutralize each other to produce water.

H+(aq)+OH−(aq)→H2O(l)

On combining both the equation, we get –  

HF(aq)+Na+(aq)+OH−(aq)→Na+(aq)+F−(aq)+H2O(l)

The Final equation is  

HF(aq)+NaOH(aq)→NaF(aq)+H2O(l)

5 0
3 years ago
What is Δn for the following equation in relating Kc to Kp?2 SO2(g) + O2(g) ↔ 2 SO3(g)23-2-11
san4es73 [151]

Answer:

-1

Explanation:

The relation between Kp and Kc is given below:

K_p= K_c\times (RT)^{\Delta n}

Where,  

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

2SO_2_{(g)}+O_2_{(g)}\rightleftharpoons2SO_3_{(g)}

<u>Δn = (2)-(2+1) = -1  </u>

Thus, Kp is:

K_p=  K_c\times (RT)^{-1}

4 0
3 years ago
Other questions:
  • What maximum fraction of the air in the room could be displaced by the gaseous nitrogen?
    11·1 answer
  • Nonferrous alloys do not contain<br> a. copper.<br> b. brass.<br> c. gold.<br> d. iron.
    5·1 answer
  • Which elements can form basic compounds?
    8·1 answer
  • Which of the following happens during a new moon? More than half of the moon is visible from Earth. Less than half of the moon i
    14·1 answer
  • A student wants to do scientific research on how aquatic plants in lakes have changed over time. What field of science does this
    15·1 answer
  • Which two scenarios illustrate the relationship between pressure and volume as described by Boyle’s law?
    8·1 answer
  • Which of the following could you do to increase the strength of an electromagnet?
    13·1 answer
  • What are some ways that students and staff of a school can help slow water, land, and air pollution?
    10·2 answers
  • What type of observation can be stated with just numbers?
    15·1 answer
  • Which substance contains positive ions immersed in a sea of mobile electrons?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!