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
Dimas [21]
1 year ago
9

Ill give 100 points!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
sp2606 [1]1 year ago
8 0

Answer:

A

Explanation:

The rest of the answers are from science-> engineering, A is the only one that's engineering->science

Keith_Richards [23]1 year ago
5 0

Answer:

I'm not 100% sure but A seems the correct answer.

Explanation:

You might be interested in
I’ll give the brainliest
Readme [11.4K]

Answer:

Water gradually degrades them until the metal parts rust and the other materials deteriorate.

Explanation:

8 0
3 years ago
10. What is used to "cure" a virus *
Lerok [7]
Vaccine

Because scientists normally put the cure in a form to get injected into you and since a vaccine is basically a shot vaccine would most likely be correct
8 0
3 years ago
True or false. elements in the same period have the same number of valence electrons
saul85 [17]
False. elements in the same period have the same number of shells while elements in the same group have the same number of valence electrons.
4 0
3 years ago
For each of the esters provided, identify the alcohol and the carboxylic acid that reacted.
Veronika [31]

Answer:

52. The alcohol USED => methanol, CH3OH

The carboxylic acid USED => propanoic acid, CH3CH2COOH.

53. The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

Explanation:

52. To obtain Methyl propanoate, CH3CH2COOCH3, we simply react propanoic, CH3CH2COOH and methanol, CH3OH together as shown below:

CH3CH2COOH + CH3OH —> CH3CH2COOCH3 + H2O

The alcohol used: methanol, CH3OH

The carboxylic acid used: propanoic acid, CH3CH2COOH.

53. To obtain Ethyl methanoate, HCOOCH2CH3, we simply react

Formic acid, HCOOH and ethanol, CH3CH2OH together as show below:

HCOOH + CH3CH2OH —> HCOOCH2CH3 + H2O

The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

7 0
3 years ago
How do forensic scientists determine the time of death? There are timely pieces of evidence that help scientists with this task.
UNO [17]

I have done some research as well as asking some friends. This is what I came up with. Not sure if it is 100% correct.

step = time after death

1. Livor Mortis = 20-30 minutes

2. Eyes film (cloud) = 2 hours

3. Rigor Mortis begins = 4-6 hours

4. Empty small intestines = 12 hours

5. Bloating = 3-5 days

6. Decay

8 0
3 years ago
Other questions:
  • The Ksp of CaF2 is 5.3 mc003-1.jpg 10-9. What is the molar solubility of CaF2 in 0.050 M Ca(NO3)2?
    7·1 answer
  • a fictitious element X is composed of 15.0% of the isotope X-51, 15.0% of the isotope X-52, and 70.0% of the isotope X-53. Estim
    6·1 answer
  • Which medieval structural innovation resulted in the wide aisles and high vaulted ceilings of Notre-Dame de Chartres?
    6·1 answer
  • A liquid has a pH of 6.8. Write the formula for calculating the [H+] and then determine the value of [H+], making sure to includ
    8·1 answer
  • Draw two cyclic constitutional isomers of cis-1-chloro-2-methylcyclobutane with the same size ring. In cases where there is only
    7·1 answer
  • What is a substance's melting point?
    14·2 answers
  • Can you please help me with the second one please can you please show your work please
    13·1 answer
  • I have similar chemical and physical properties to calcium but my molecular mass is lower, what element am I?
    11·1 answer
  • Which of the following describes experiences initiated spontaneously by children as they go about their daily activities?
    10·1 answer
  • Kate wrote the steps of the carbon cycle to describe how carbon is cycled through specific organisms. The steps are in random or
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!