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
mario62 [17]
3 years ago
13

Experiments 11. What 2 factors increase the validity of a scientific experiment?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
4 0

Answer:

evidince is one of them

Explanation:

You might be interested in
Which of the following does not change the energy of the reactants relative to the activation energy?
creativ13 [48]

Answer:

Adding a catalyst

Explanation:

  • Activation energy is the minimum amount of energy needed to start a chemical reaction
  • A Catalyst is a material that increases the rate of a reaction by lowering the activation energy. In other words, a catalyst act to provide an alternative route for the reaction which has a lower activation energy.
6 0
3 years ago
Read 2 more answers
Help, 8th grade Science
valentinak56 [21]

Answer:

Control container

Explanation:

5 0
3 years ago
Read 2 more answers
A 50.0 N force is applied to an object travels with a constant velocity of 20m/s, calculate
weqwewe [10]

Answer:

trdewasd7rf8t6gy7hu8jik

Explanation:

6 0
3 years ago
Is trimming a bush because it grows too tall a chemical or physical change
professor190 [17]

Answer:

Physical Change

Explanation:

The bush is changing shapes, not changing what it is.

8 0
4 years ago
A student is given the question: "what is the mass of a gold bar that is 7.379 × 10–4 m3 in volume? the density of gold is 19.3
IRINA_888 [86]

<em>The mass of a gold bar  = 1.424 x 10⁴ gram</em>

<em></em>

<h3><em>Further Explanation</em></h3>

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than type

The unit of density can be expressed in g / cm3 or kg / m3

Density formula:

\large{\boxed{{\bold{\rho~=~\frac{m}{V}}}}

ρ = density

m = mass

v = volume

A common example is the water density of 1 gr / cm3

The mass itself is often equated with weight, even though it is different. Mass is the amount of matter in the matter while weight is related to the gravitational force

<em>Known variable</em>

volume gold bar 7.379 × 10⁻⁴ m³

a density of 19.3 g/cm³

<em>Asked</em>

the mass of a gold bar

<em>Answer</em>

volume is known to be 7.379 × 10⁻⁴ m³, then we change it first to units of cm³ adjusting to units of density

7.379 × 10⁻⁴ m³ = 7.379 × 10² cm³

then:

mass = volume x density

mass = 7.379 × 10² cm³ x 19.3 g/cm³

mass = 1.424 x 10⁴ gram

<h3><em>Learn more </em></h3>

density acetone

brainly.com/question/4593217

density and molarity of the solution brainly.com/question/8151398

the percent of acetic acid in the vinegar brainly.com/question/3001349

the mass percent brainly.com/question/5142462

the mass of the fuel is in kilograms brainly.com/question/8312085

the relative density of the fuel

brainly.com/question/10889330

Keywords: density, mass, volume, a gold bar

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why does an evaporating liquid cool down, according to the Kinetic Molecular Theory? a.Heat is required to evaporate a liquid.
    6·2 answers
  • The weight of a medium sized apple is about _____. A) 1N B) 2N C) 1kg D) 2kg​
    6·1 answer
  • How much heat, in joules and in calories, must be added to a 75.0–g iron block with a specific heat of 0.449 j/g °c to increase
    14·1 answer
  • Is it possible to change the strength of an acid? Explain how you would do this.
    5·1 answer
  • What does pH stand for? and how acidic is the soil after rainfall
    13·1 answer
  • what is the substances would be produced during the chemical reaction between potassium hydroxide and hydrochloric acid
    11·2 answers
  • HBrO (aq) + H2O (l) ⇋ H3O+ (aq) + BrO- (aq)
    13·2 answers
  • What is the scientific tool required to measure the volume of a liquid?
    13·1 answer
  • What is the pressure, in atm, exerted by 41.6 g oxygen in a 22.0L container at 30.0C ?
    13·1 answer
  • PLZ HELP<br> what is the amount of atoms in this formula Ca3(Po4)Ba12OH5Cl2
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!