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
xeze [42]
4 years ago
13

Which best explains why scientific theories grow stronger over time? (2 points)

Chemistry
1 answer:
Mariana [72]4 years ago
3 0
<span>One theory that explains why scientific theories grow stronger over time is because more scientists study and work on the theory. Over time as the theory is studied in greater depth it becomes more accepted.</span>
You might be interested in
Water is dripping into a bucket at a rate of 51 drops per minute. if each drop has a volume of 0.050 milliliters, what volume of
serious [3.7K]

112.2 milliliters volume of water will drip into the bucket in 44 minutes.

<h3>What is volume?</h3>

How much space an object or substance takes up. • Measured in cubic meters (m3), liters (L) & milliliters (mL).

Total drop = Drops per minute X time

= 51 drops per minute X 44 minutes

=2244 drop

Volume of water will drip into the bucket in 44 minutes

=Total drop X Volume of each drop

=0.050 milliliters X 2244 drop

=112.2 milliliters

Hence, 112.2 milliliters volume of water will drip into the bucket in 44 minutes.

Learn more about volume here:

brainly.com/question/10904074

#SPJ1

8 0
2 years ago
What type of reaction is   3Ca(OH)2 + Al2(SO4)3 = 3CaSO4 + 2Al(OH)3 Combustion, Synthesis, Decomposition, Single Displacement, D
Alexeev081 [22]
Answer is: <span>Double Displacement.
Combustion is reaction with oxygen.
</span>Synthesis is reaction of two or more substances combining to make a more complex substance. 
Decomposition is reaction where one substance is broken down into two or more simpler substances. 
Single Displacement is reaction where  neutral element metal or nonmetal become an ion as it replaces another ion in a compound. 
<span>Double displacement reactions (more reactive metals displace metals with lower reactivity).
</span>Neutralization<span>is is </span>reaction<span> in which an </span>acid<span> and a </span>base<span> react quantitatively with each other.</span>

3 0
3 years ago
According to the kinetic-molecular theory, the average kinetic energy of gas particles depends on which factor?
Sergeeva-Olga [200]

Answer:

Temperature.

Explanation:

Kinetic molecular theory of gases states that gas particles exhibit a perfectly elastic collision and are constantly in motion.

According to the kinetic-molecular theory, the average kinetic energy of gas particles depends on temperature.

This ultimately implies that, the average kinetic energy of gas particles is directly proportional to the absolute temperature of an ideal gas. Thus, an increase in the average kinetic energy of gas particles would cause an increase in the absolute temperature of an ideal gas.

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

5 0
3 years ago
A solution of NaCl ( aq ) is added slowly to a solution of lead nitrate, Pb ( NO 3 ) 2 ( aq ) , until no further precipitation o
3241004551 [841]

Answer:

The molarity of the Pb(NO_3)_2 solution = 0.1895 M

Explanation:

The mass of the PbCl_2 obtained = 10.55 g

Molar mass of PbCl_2 = 278.1 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{10.55\ g}{278.1\ g/mol}

Moles_{PbCl_2}= 0.0379\ mol

From the reaction:-

Pb(NO_3)_2+2NaCl\rightarrow PbCl_2+2NaNO_3

1 mole of PbCl_2 is produced from 1 mole of Pb(NO_3)_2

Also,

0.0379 mole of PbCl_2 is produced from 0.0379 mole of Pb(NO_3)_2

Mole of Pb(NO_3)_2 = 0.0379 mol

Volume = 200.0 mL = 0.2 L ( 1 mL = 0.001 L )

Molarity is defined as the number of moles present in one liter of the solution. It is basically the ratio of the moles of the solute to the liters of the solution.

The expression for the molarity, according to its definition is shown below as:

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

Thus,

Molarity=\frac{0.0379}{0.2}\ M = 0.1895\ M

<u>The molarity of the Pb(NO_3)_2 solution = 0.1895 M</u>

4 0
3 years ago
Find the volume in milliliters occupied by 454 g of copper, which has a density of 8.92 g/mL.​
Alecsey [184]

Answer:

<h2>50.90 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question

mass = 454 g

density = 8.92 g/mL

We have

volume =  \frac{454}{8.92}  \\  = 50.8968

We have the final answer as

<h3>50.90 mL</h3>

Hope this helps you

7 0
3 years ago
Other questions:
  • The simplest unit of matter that still retains the properties of an element is a(n) _____.
    13·1 answer
  • Violet light has a wavelength of 4.10 x 10^-12 m. What is the frequency?
    8·2 answers
  • 1.For the reaction P4 O10(s) + 6H2O(l) → 4H3PO4(aq), what mass of P
    15·2 answers
  • What was the answer \
    12·1 answer
  • Suppose an ionic solid with a cubic unit cell contains A (cations) and Z (anions). The A ions are in the body center position an
    12·1 answer
  • If you have 9900 g of donuts, how many donuts do you have if each donut has a mass of 150 g?
    12·1 answer
  • How many milliliters of 2.5 M HCl are required<br> to exactly neutralize 1.5 L of 5.0 M NaOH?
    13·1 answer
  • Draw the curved arrow mechanism for the addition of HCN in water with NaOH to 3,4-dimethylcyclopentan-1-one to give the correspo
    12·1 answer
  • If density is calculated by mass divided by volume and the mass increases, what would happen to the density of an object?
    9·1 answer
  • A balloon starts out with a volume of 1.3 l at 115.3 kpa. if the temperature is held constant, what would the new volume be if t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!