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
asambeis [7]
3 years ago
9

What must be part of a quantitative observation?

Chemistry
2 answers:
ziro4ka [17]3 years ago
6 0

Answer:

Quantitative observation is a method used by researchers to collect data using numerical methods such as age, weight, height. The results of this type of observation can be analyses using statistics and numerical analysis. What should be included in a quantitative observation include:

  • Numerical instruments
  • Sample
  • Statistical analysis
  • Accuracy
  • Reliability and validity
  • Bias-free/numerical results

Explanation:

Likurg_2 [28]3 years ago
4 0

Quantitative observations include numerical data. Ex: 32 degrees, 10 inches, etc.

You might be interested in
According to Bowen's reaction series, crystal settling should result in the magma being separated in lower layers rich in the ea
monitta

Answer:

quartz and olivine

Explanation:

According to my research on studies made by different geologists on Bowen's reaction series, it is known that crystal settling should result in the magma being separated in lower layers rich in the early-formed quartz and olivine minerals.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
4 years ago
Compare the properties of the following: α particles, cathode rays, protons, neutrons, and electrons.
soldi70 [24.7K]

Properties of the following are:

Alpha particle - positively charged particle (+) that consists of two electrons and two neutrons.

Cathode rays - it is the stream of electrons (negatively charged) found in vacuum.

Protons - are particles that carry positive charge and is present inside the nucleus of an atom.

Electrons - are particles that carry negative charge and is present in the orbits of the atom.

Neutrons - electrically neutral particle (0 charge) present inside the nucleus of an atom. However, it has its own mass.

5 0
3 years ago
2.92 A 50.0-g silver object and a 50.0-g gold object are both added
Trava [24]

Answer:

82.9 mL  

Explanation:

1. Volume of silver

\begin{array}{rcl}\text{Density}&=& \dfrac{\text{Mass}}{\text{Volume}}\\\\\rho&=& \dfrac{m}{V}\\\\V &=& \dfrac{m}{\rho}\\\\& = & \dfrac{\text{50.0 g}}{\text{10.49 g$\cdot$mL}^{-1}}\\\\& = & \text{4.766 mL}\\\end{array}\\\text{The volume of the silver is $\large \boxed{\textbf{4.766 mL}}$}

2. Volume of gold

\begin{array}{rcl}V& = & \dfrac{\text{50.0 g}}{\text{19.30 g$\cdot$mL}^{-1}}\\\\& = & \text{2.591 mL}\\\end{array}\\\text{The volume of the gold is $\large \boxed{\textbf{2.591 mL}}$}

3. Total volume of silver and gold

V = 4.766 mL + 2.591 mL = 7.36 mL

4 New reading of water level

V = 75.5 mL + 7.36 mL = 82.9 mL

3 0
4 years ago
What type of plate boundary does Iceland lie over? What makes Iceland special in terms of plate tectonics?
Marat540 [252]

Answer:

tectonic plates

Explanation:

....brainliest pls

5 0
3 years ago
Iodide (KI). Identify the correct products of this
TEA [102]

Answer:

AgNO3 + KI → Agl + KNO3. Double-replacement reaction

Explanation:

Based on solubility rules, Silver, Ag produce an insoluble salt in presence of halides (Fluorides F-, Chlorides Cl-, Iodides, I-, and bromides Br-). That means the mixture of AgNO3 (Ag⁺ ions) with KI (I- ions) produce AgI as insoluble salt.

The reaction is:

<h3>AgNO3 + KI → Agl + KNO3</h3><h3 />

And this is a double-replacement reaction where the cations exchange of anion to produce 2 new compounds.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which book has kinetic energy
    9·1 answer
  • Write the equilibrium‑constant expression for the reaction A(s)+3B(l)↽−−⇀2C(aq)+D(aq) in terms of [A], [B], [C], and [D], as nee
    6·2 answers
  • True or false: in the water cycle, water returns to Earth as condesation, usually in the form of rain or snow.
    15·2 answers
  • Part A.4 and Part B. In a hurry to complete the experiment, Anna withdrew two volumes of solution from Part A.2 before the preci
    5·1 answer
  • A substance that can be separated into two or more substances only by a chemical change is a
    15·1 answer
  • Balance Fe3O4 + H2 = Fe + H2O
    14·1 answer
  • Earth would fly off into space in a straight line if the ______________________________
    5·1 answer
  • What is always made of the same combination of elements or compounds
    15·1 answer
  • What is Ring of Fire
    13·1 answer
  • What is wave frequency
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!