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
sergij07 [2.7K]
4 years ago
13

Bob is investigating whether the density of water changes with temperature. Which of the following variables should he change in

his experiment?
temperature of the water

type of water used (bottled water or tap water)

volume of the water used

mass of the water used
Chemistry
1 answer:
LekaFEV [45]4 years ago
7 0

Answer:

temperature of the water

Explanation:

Density is defied as mass divided by the volume. To investigate how the density of water change with temperature, Bob have the change the temperature and read the volume and mass of the investigated sample.

Even if there is a different salt content between booted water or tap water and have an influence on the density (compared with pure water), this difference is not so big so the change in density with temperature can be determined. Considering that the experiment do not require extreme accuracy,  any type of water may be used (bottled water of tap water).

You might be interested in
What’s an example of two subsystems working together in the human body systems
7nadin3 [17]

Answer:

your brain and you hand

Explanation:

because your hand tells you what to do with that hand

6 0
4 years ago
1. Which of the following rules determines the charge on a monatomic Ion formed from a nonmetal?
d1i1m1o1n [39]
1. Which of the following rules determines the charge on a monatomic Ion formed from a nonmetal?C. 8 - group number

2. Which of the following statements is true?
A. Metals lose electrons to become cations.
7 0
4 years ago
Read 2 more answers
What is the basic building block of matter
nasty-shy [4]

Answer:

Atoms

Explanation:

Atoms are widely believed to be the most fundamental particle of matter and their basic building blocks. When atoms combines together, they form compounds. Molecules are another units of matter that are made up of tiny particles of atoms.

5 0
4 years ago
Which property can be used to tell gold and pyrite apart?
zubka84 [21]

Answer:

D. Malleability

Explanation:

Gold is made up of the element Au and it is a metal.

Pyrite is iron sulfide and it is a non-metal.

  • They have very similar appearance to such an extent that pyrite is widely called the fool's gold.
  • To distinguish between the two, we simply explore their metallic properties.
  • Gold is malleable. Pyrite is not. It will crumble under pressure.
6 0
3 years ago
Except for speed, your nervous system is most similar to
dlinn [17]

Your nervous system is most similar to a cruise ship (option C).

The nervous system is a complex network in the body in charge of:

  • Automatic responses and movements.
  • Voluntary movements.
  • Responses to the world.

This system works due to the action of structures such as:

  • The brain.
  • The spinal cord.
  • The nerves.

Moreover, the nervous system works through the following steps:

  1. A stimulus is received, for example, you accidentally touch a hot surface.
  2. This is taken by the nerves to the brain.
  3. The brain processes the information and sends a response, for example, to move the hand away from the hot surface.

Based on this, the system resembles a cruise ship because signals go from the senses to the brain and then back again similar to a cruise going away and then back to the port.

Learn more about brain in: brainly.com/question/5361122

8 0
2 years ago
Other questions:
  • A family of organic compounds soluble in organic solvents but not in water is called
    5·1 answer
  • The molar concentration (M) of a solution prepared by dissolving 0.2362g of Cr(NO3)3 in a 50-mL volumetric flask is 0.01985M, wh
    13·1 answer
  • If a diatomic molecule has a vibrational force constant of k=240 kg s-2 and a reduced mass of 1.627x10-27 kg, its vibrational fr
    7·1 answer
  • (45 pts) In which reaction is carbon reduced?
    9·1 answer
  • How many protons and electrons are in Hg+
    9·1 answer
  • Someone please answer all 5 steps on this density question please.
    10·1 answer
  • Phosphorus react with carbon<br>​
    7·1 answer
  • Help will be much appreciated
    12·1 answer
  • How many moles of oxygen are prosent in 169 of oxygen gas?​
    6·2 answers
  • What is the answer? <br><br> NO LINKS!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!