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
andrew11 [14]
3 years ago
5

Can someone help me with this pls

Chemistry
2 answers:
diamong [38]3 years ago
7 0
The chemical elements are arranged in order of increasing atomic number. Answer A.
grandymaker [24]3 years ago
4 0

Answer:

i think the correct answer is A

You might be interested in
Please if anyone know this question, tell me its answer. I will be very thankful to you<br>​
Verizon [17]
Ch-c§c will get the answer
5 0
3 years ago
A pharmaceutical company wants to test the efficiency of its new drug production techniques so they run 3 shifts of production f
spayn [35]

The percentage yield of the  new production technique is 82.8%

<h3>What is the percentage yield?</h3>

Production is the procedure by which finished products are obtained form the raw materials. The production process involves the passing of raw materials through a certain procedure that involves the use of certain machines and equipment to give us the required products.

We are told in the question that there are three shifts;

Shift 1 produces 4562 grams

Shift 2 produces 5783 grams

Shift 3 produces 5247 grams

Average production from the three shifts = 4562 grams + 5783 grams +  5247 grams/3 = 5197 grams

The theoretical average yield is =  7000 grams + 7000 grams + 7000 grams/3 = 7000 grams

Now the percentage yield = actual yield/ theoretical yield * 100/1

percentage yield = 5197 grams/7000 grams * 100/1

percentage yield = 82.8%

Learn more about percentage yield :brainly.com/question/27492865

#SPJ1

3 0
2 years ago
What is the mass of 0.45 moles of Sodium?
ch4aika [34]

Answer:

10.35

Explanation:

multiply moles by molar mass from periodic table

3 0
3 years ago
Suppose you carry out a titration involving 2.50 molar NaOH and an unknown concentration of HBr. To bring the reaction to its en
givi [52]

Answer:

B

Explanation:

Brainly Patrol ima stop you here

7 0
2 years ago
Hypothesize in your words how the heat is flowing through radiation.
Karo-lina-s [1.5K]
Answer:

Radiation is the emission of electromagnetic waves from all matter that has a temperature greater than absolute zero. In other words the heat of the energy it radiates in infrared spectrum.
3 0
3 years ago
Other questions:
  • Nitrogen and hydrogen combine to form ammonia in the Haber process. Calculate (in kJ/mole) the standard enthalpy change DH° for
    13·2 answers
  • in 1965, the mean price of a new car was $2,650 and the standard deviation was $1,000. In 2011, the mean was $30,500 and the sta
    11·1 answer
  • What is the last element in period 4?
    7·1 answer
  • Which system of measurement does the U.S. use?????
    6·1 answer
  • What is the average speed of particle in a gas at room temperature? Why is temperature an important variable?
    13·1 answer
  • A turbine operates on superheated steam that enters at 80 bar absolute and 500˚C, and leaves the turbine at 7.5 bar absolute and
    14·1 answer
  • can someone please help me with this question, it's for my lab report. I tried my best but failed to do the calculation. please
    14·1 answer
  • What happens when liquid changes to gas?
    15·1 answer
  • Decay chains exist because
    11·1 answer
  • What form of energy causes an ice cube to melt
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!