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
kondaur [170]
3 years ago
9

PLEASE ANSWER FAST!!!!! Consider this hypothesis statement. "If the number of hours a student studies increases, then the studen

ts test grade will increase." What is the independent variable in the above statement?
Chemistry
1 answer:
yanalaym [24]3 years ago
7 0

Answer:

i believe the answer is number of hours because independent variable is what the experimenter changes or controls

You might be interested in
How many grams of O2(g) are needed to completely burn 15.6 g of C3H8(g)?
alexdok [17]
15.6gC3H8*44.1gC3H8*32gO2=11.32
7 0
4 years ago
The slogan for a package delivery service is for the fastest shipping from port to port call holt speedy transport describe how
wel
A scientific experiment may be set up in order to test the company's claim.

For this, one may send a number of similar packages from different companies and this one. Then, the time taken for the packages to arrive is noted. Afterwards, difference in time of arrival for the similar packages is calculated and then the data obtained is analyzed. If the company's delivery timings are less than the other companies', then their claim is indeed true.
3 0
4 years ago
List the following minerals in order of decreasing hardness: apatite, calcite, corundum, feldspar, and talc.
Leto [7]
Corundum, Feldspar, Apatite, Calcite, and Talc.
5 0
3 years ago
Read 2 more answers
A 75.0 g sample of dinitrogen monoxide is confined in a 3.q L vessel. What is the pressure( in atm) at 115 celsius
Nonamiya [84]
Data Given:
                  Pressure  =  P  =  ?

                  Volume  =  V  =  3.0 L

                  Temperature  =  T  =  115 °C + 273  =  388 K

                  Mass  =  m  =  75.0 g

                  M.mass  =  M  =  44 g/mol

Solution:
              Let suppose the Gas is acting Ideally. Then According to Ideal Gas Equation,
                                      P V  =  n R T
Solving for P,
                                      P  =  n R T / V      ------ (1)
Calculating Moles,
                                      n  =  m / M

                                      n  =  75.0 g / 44 g.mol⁻¹

                                      n  =  1.704 mol

Putting Values in Eq. 1,

                    P  =  (1.704 mol × 0.08205 atm.L.mol⁻¹.K⁻¹ × 388 K) ÷ 3.0 L

                    P  =  18.08 atm
7 0
3 years ago
Identify the following as physical (P) or chemical (C) changes.
Stels [109]

holacomo es tu pregunta nola entiendo

lanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • You know that chemical a reacts with chemical
    5·1 answer
  • Which statements best describe gases? Check all that apply.
    13·2 answers
  • Propane burns according to the following equation:
    12·1 answer
  • A silver block, initially at 58.4∘C, is submerged into 100.0 g of water at 25.0∘C in an insulated container. The final temperatu
    11·1 answer
  • The physical and chemical properties of a molecule depend on its structure. Here are two ball-and-stick models for two compounds
    12·2 answers
  • Help asap, testining
    8·1 answer
  • Whats the Ph level of bleach
    15·1 answer
  • Why do non-metals and metals do not conduct electricity
    8·1 answer
  • Please do not ignore, I don’t know how to find the last part so can you please explain it to me? I’m having trouble with that
    14·2 answers
  • Pls someone help rn!! Pls pls
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!