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
weeeeeb [17]
2 years ago
5

Which tool should Darla and Rob use to measure the force that pulls a car down the map

Chemistry
1 answer:
svetoff [14.1K]2 years ago
5 0

Answer:

C. A Spring Scale

Explanation:

Using process of elimination, we can quickly decide that a stopwatch and a ruler will not be useful in measuring the force. This leaves us with either the spring scale or a balance scale. A balance scale is used to compare two weights, so this is eliminated. That leaves us with a spring scale. This is because we can attached the spring scale to the car and when we let it go, we can record the force. I hope this helps!

You might be interested in
Qualitative measurements involve numerical measurements while quantitative measurements record descriptions.
Liono4ka [1.6K]
This is false quantitative is numerical while qualitative is descriptive
6 0
3 years ago
What is the difference b/w synthesis reaction and combination reaction​
suter [353]

Direct Combination Reaction : The reaction in which two or more substances combine to form a single substance is called direct combination reaction. Synthesis Reaction: The reaction in which two or more elements combine to form a compound is called direct combination reaction.

HOPED I HELP BRIANEST PLZZ

4 0
3 years ago
Read 2 more answers
On the first day of your new job as a chemist, you are given a bottle of magnesium sulfate and asked to make 30 mL of 0.3 M MgSO
Lady bird [3.3K]

Answer:

The answer to your question is 15500 mg of MgSO₄ 7H₂O

Explanation:

Data

Volume = 30 ml

Concentration = 0.3 M

Formula MgSO4∗7H2O

Process

1.- Calculate the number of moles needed

 Molarity = moles / volume

Solve for moles

 moles = Molarity x volume

Substitution

 moles = 0.3 x 0.03 l

 moles = 0.009 moles of MgSO₄

2.- Calculate the molecular mass of MgSO4∗7H2O

molecular mass = 24 + 32 + 64 + 14 + 112

                           = 246 g

3.- Get the proportion MgSO4 :7H2O, this proportion is 1 : 7

4.- Calculate the amount of MgSO4∗7H2O

    0.009 mol of MgSO4 \frac{7 MgSO4 7H2O}{1 mol MgSO4} \frac{246 g MgSO4 7H2O}{1 mol MgSO4 7H2O}

Simplification

   15.5 g = 15500 mg

5 0
3 years ago
1. Why does CH30 evaporate faster than water?
Iteru [2.4K]

Answer:

Becuase CH30 has weaker inter-molecular forces

Explanation:

Becuase its intermolecular forces are weaker the particals will seperate more easilyl.

8 0
3 years ago
HH or Hh or hh??? help asap
enot [183]
The answer is genotype because those are the letters .
7 0
3 years ago
Read 2 more answers
Other questions:
  • 1.the water on the surface of the earth
    10·1 answer
  • Is glue a suspension colloid or solution?
    10·2 answers
  • How many valence electrons does a helium atom have? what is the formula of the ion formed when potassium achieves noble-gas elec
    13·1 answer
  • What holds atoms together in a molecule?
    9·2 answers
  • Which answer choice correctly describes the difference between ionic and covalent bonds?
    8·1 answer
  • A student successfully neutralizes 25.0mL of HCl(aq) during a titration experiment with 18.5mL of 0.150M NaOH(aq). What is the c
    9·1 answer
  • Aqueous solutions of ammonium sulfide and potassium hydroxide are mixed. Precipitate:
    7·1 answer
  • The skeletal structure of Arachidonic acid, an essential fatty acid, is provided below. Arachidonic acid is best classified as:
    8·1 answer
  • How does heating cause bread to burn?
    9·2 answers
  • Someone explain it plz ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!