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
Flauer [41]
3 years ago
12

Which of the following questions can be answered by science?

Chemistry
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

A. What is the composition of air?, B. Should the driving age be reduced?, D.

Should students be allowed to bring toys to school? Answer: A,B,D.

Hunter-Best [27]3 years ago
6 0

Answer:

<h2><em><u>(</u></em><em><u>a</u></em><em><u>)</u></em><em><u>,</u></em><em><u> </u></em><em><u>(</u></em><em><u>b</u></em><em><u>)</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>(</u></em><em><u>c</u></em><em><u>)</u></em><em><u> </u></em><em><u>I</u></em><em><u> </u></em><em><u>guess</u></em></h2>
You might be interested in
What conditions prevail (are mostly found) in the rain shadow area?
omeli [17]
Dry and desert conditions
8 0
3 years ago
Drag each label to the correct location on the table.
AleksAgata [21]

Explanation:

1) Boyle's Law: This law states that pressure is inversely related to the volume occupied by the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

  • When the size of the chamber is increased the volume occupied the gas will increase with which pressure exerted by the gas will decrease down.
  • When we press the inflated balloon the pressure on the gas is increased with which volume of the occupied by the gas inside the balloon decreased.

2) Charles' Law: This law states that volume occupied by the gas is directly related to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles)

  • The size of the balloon deceases because the in winters the temperature decreases with which volume of the gas present in the balloon also decreases.
  • When the flexible closed container is heated the temperature of the gas inside the container increases with which the volume occupied by the gas in the container will increase resulting in expanding of container.

3) Avogadro's Law: This law states that volume occupied by the gas is directly related to the number of moles of the gas at constant pressure and temperature.

V\propto n   (At constant temperature and pressure)

When we blow air into the balloon the umber of air particles increases with which the volume of the gas inside the balloon also increases resulting in increase in size of the balloon.

3 0
3 years ago
The atomic number of an atom is alwaysequal to the number of its. (1) protons, only. (2) neutrons, only. (3) protons plus neutro
Luden [163]
You are correct, the atomic number is always equal to the number of protons in the element. It is the relative atomic mass that is equal to the number of protons+neutrons. Electrons have no mass
6 0
3 years ago
3. Students measured the mass of the reactants and products for a combustion reaction they observed.
coldgirl [10]

Answer:

A. Students made a measurement error, because ending with more products is impossible.

Explanation:

The law of conversation of matter tells us that in a chemical reaction, matter is never created or destroyed, it's simply converted from one form to another. So the mass of reactants should always equal the mass of the products in a chemical reaction. If there is excess mass in the product, the students have made an error of some kind.

4 0
3 years ago
the compound nacI is an example of a /an.. (A)covalent bond (B)Ionic bond (C) Metallic bond (D) none of the above
Misha Larkins [42]

The answer should be B, ionic bond.


Ionic bond is the bonding between a metal and a non-metal. While covalent bond is the bond between non-metals, and metallic bond is the bond between metals.


Since Na, sodium, is a metal, and Cl, chlorine, is a non-metal, the bond formed between them is an ionic bond. Sodium gives up an electron to chlorine inside this bonding.

8 0
3 years ago
Other questions:
  • Uranium-238 decays very slowly.its half-life is 4.47 billion years.
    7·2 answers
  • What is the chemical name for the compound If5
    11·2 answers
  • Which is the property of matter in which substance can transfer heat it electricity
    14·1 answer
  • Which of the following is a characteristic of an ionic compound? (2 points)
    9·2 answers
  • Which of the following is true of science ?
    5·1 answer
  • The total power used by humans worldwide is approximately 15 TW (terawatts). Sunlight striking Earth provides 1.336 kW per squar
    8·1 answer
  • An inorganic salt is composed of 17.6% sodium, 39.7% chromium, and 42.8% oxygen. What is the empirical formula of this salt?
    8·1 answer
  • What is the ratio of the side lengths on polygon FGHIJ to the corresponding side lengths on polygon ABCDE? Enter the ratio in th
    11·2 answers
  • If an aspirin tablet contains 325mg aspirin, how many grams of aspirin does it contain?
    5·2 answers
  • What do you notice about the dipole moment vector and the hydrogen bond? think about why the direction of the dipole vector make
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!