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
Rina8888 [55]
3 years ago
11

In order to model a chemical change in the laboratory, a student wants to select the appropriate measuring apparatus to record t

he reaction. Which apparatus could be used to detect that a chemical change occurred with a substance in a laboratory setting? Select ALL that apply.
A) The student could use a hand lens to see if the original substance had been crushed into smaller particles.
B) The student could perform an odor test to detect if a new smell emerges from the interaction of the substance in the lab.
C) The student could test whether gas was released during the interaction of the substance with another substance in the lab.
D) The student could use a spatula to determine if a precipitate/solid formed at the bottom of the beaker containing the substance. Eliminate E) The student could use a balance and a volumetric flask to determine the mass and volume of the substance in order to determine its density.
Chemistry
1 answer:
RoseWind [281]3 years ago
7 0

Answer:

b,c,d

Explanation:

bc i got it right

You might be interested in
Help with 5b. Full explanation please
larisa86 [58]
Not elementary school work
8 0
3 years ago
What happens when you combine ammonia and formaldehyde?
bija089 [108]

Answer:

The mechanism for the formation of hexamethylenetetraamine predicts the formation of aminomethanol from the addition of ammonia to formaldehyde. This molecule subsequently undergoes unimolecular decomposition to form methanimine and water.

Explanation:

Brainliest please?

5 0
3 years ago
A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain yo
Amanda [17]

Explanation:

Charges on both magnesium and oxygen is 2. Though opposite in sign, they have equal charges so, both of them will be cancelled by each other.

As a result, formula of magnesium oxide is MgO and not MgO_{2}.

The student write the equation as Mg + O_2 \rightarrow MgO_2, it is not correct.

Therefore, given equation will be balanced as follows.

          2Mg + O_{2} \rightarrow 2MgO

Since, number of atoms on both reactant and product side are equal. Hence, this equation is completely balanced.

7 0
3 years ago
(IMAGE ATTACHED)<br>Help plssss this is due in 3 hours<br>​
Natasha2012 [34]

Answer:

Acceleration:

Speed/Time

Change in speed or velocity over a specific amount of time

Speed:

Distance/Time

Change in distance over a specific amount of time

Velocity:

Distance/Time

Speed in a given direction

3 0
3 years ago
Match each word with the correct definition. 1. to have an effect on someone or something technology 2. practical application of
Nastasia [14]

Answer:

2.

Explanation:

This  should  be right hopefully it is!

3 0
3 years ago
Other questions:
  • A student did an experiment with two identical plants, Plant 1 and Plant 2. About 10 mL fertilizer was added to both plants. Abo
    14·2 answers
  • Butane is used as a fuel in camping gas stoves.100 cm3 of butane is burned in excess oxygen .calculate the volume of carbon diox
    14·1 answer
  • (i)<br> The positive particles,<br> , in the nucleus of atoms are called
    10·1 answer
  • Animal fats tend to be _______________ with hydrogen atoms. (fifth paragraph of this sub-section
    8·2 answers
  • The recommended application for dicyclanil for an adult sheep is 65 mg/kg of body mass. If dicyclanil is supplied in a spray wit
    6·1 answer
  • When computing using dimensional analysis:
    7·1 answer
  • Identify bohrs model of the atom. His model described the reactivity of an element based on its number of valence electrons.
    5·2 answers
  • Arrange the following solution in the increasing order of their H+ ion concentration?
    6·1 answer
  • find the concentration in mol/dm^3 of a solution of sodium hydroxide if it contains 3.5g of NaOH in 100cm^3 of solution.​
    10·1 answer
  • Which is a component of John Dalton’s atomic theory?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!