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
Leokris [45]
3 years ago
8

Which of the following observations is usually not evidence of a chemical change ?

Chemistry
1 answer:
Nookie1986 [14]3 years ago
5 0

Answer:

D

Explanation:

Have a nice day

You might be interested in
How many non-bonding electrons are present in PO43- ? Group of answer choices
inn [45]
In the Lewis structure of PO43- there are a total of 32 valence electrons. For the Lewis structure for PO4 3- you should take formal charges into account to find the best Lewis structure for the molecule. Remember, PO4 3- has a negative three charge on the molecule.
8 0
3 years ago
A reaction rate is measure per unit of?
xeze [42]
A reaction rate is generally measured in terms of amount (usually in mass) per unit volume.
7 0
3 years ago
A 2.0 mL sample of a liquid has a mass of 44.0 g. What is the density of the liquid?
riadik2000 [5.3K]

Answer:

The answer is

<h2>22 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}

From the question

mass of liquid = 44 g

volume = 2 mL

The density of the liquid is

density =  \frac{44}{2}

We have the final answer as

<h3>22 g/mL</h3>

Hope this helps you

8 0
3 years ago
Identify the following elements based on the information provided:
leonid [27]

Answer:

answer

Explanation:

answer

5 0
2 years ago
Which of these steps should always be followed for effective problem solving? a. buying a larger quantity of material than estim
Nesterboy [21]
The best steps that should always be used for effective problem solving would be C. Developing a plan and then implementing the plan.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the percent ionic, the percent covalent, and the bond length (in picometers) of a chemical bond between phosphorus and
    6·1 answer
  • Determine the electron geometry (eg) and molecular geometry (mg) of <img src="https://tex.z-dn.net/?f=CH_3%5E%2B" id="TexFormula
    15·1 answer
  • Someone help me plz this is so hard
    6·1 answer
  • What is the type of bond in calcium oxide​
    9·1 answer
  • How much ice (in grams) would have to melt to lower the temperature of 354 ml of water from 26 ?c to 6 ?c? (assume the density o
    14·1 answer
  • How many moles of KOH are there in 27.5 mL of 0.250 M KOH?
    15·1 answer
  • If the half-life of an element is 150 years, how much of a 400 gram sample would remain in 750 years?
    5·1 answer
  • Please help me with this question it’s really confusing and I’ll give you extra credit :)) THANK YOU SMM
    9·1 answer
  • PLEASE HELP ITS DUE TODAY!
    5·1 answer
  • Anil accidentally swallows a substance that activates the complement cascade in the absence of bound antibodies. this substance
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!