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
xeze [42]
3 years ago
9

It

Chemistry
1 answer:
ivann1987 [24]3 years ago
5 0

Answer:

His mistake was that he also gave the plants  in the music room some fertilizer

Explanation:

When carrying out a reliable experiment, the only variable should be the question being tested. The question here is whether playing music for plants helps them grow faster. Therefore, all the plants should be grown in exactly the same conditions apart from the presence or absence of music.

However, Jo also added fertilizer to the plants in the room where music was playing. Therefore, we don't know whether the fertilizer or the music caused the plants to grow faster.

Instead, Jo should have not given fertilizer to any of the plants, or given fertilizer to all the plants.

You might be interested in
If you begin with 72 grams of Nickel, how many moles of Ni would you have?​
Marianna [84]

Answer: 1.2 Moles of Nickel

Explanation:

So you have to transfer grams to moles.

You do this by dividing your beginning mass by the atomic mass of the element (found on the periodic table).

1 mole is equal to the atomic mass of the element. The atomic mass of Nickel is 58.6934 rounded to the proper significant figures will be 59.

72 Grams Nickel / 59 grams = 1.2 moles of Nickel

6 0
3 years ago
Describe at least three commercial uses and at least two medical uses of nuclear energy and/or radioisotopes.
SashulF [63]

Nuclear medicine uses radiation to provide diagnostic information about the functioning of a person's specific organs, or to treat them. Diagnostic procedures using radioisotopes are now routine.

Radiotherapy can be used to treat some medical conditions, especially cancer, using radiation to weaken or destroy particular targeted cells.

Over 40 million nuclear medicine procedures are performed each year, and demand for radioisotopes is increasing at up to 5% annually.

Sterilization of medical equipment is also an important use of radioisotopes.

I really hope this answer helps you out! It makes my day helping people like you and giving back to the community that has helped me through school! If you could do me a favor, if this helped you and this is the very best answer and you understand that all of my answers are legit and top notch. Please mark as brainliest! Thanks and have a awesome day!

4 0
4 years ago
Identifying Wave Interactions<br> Which diagram (A or B) shows transmission?<br> Intro
Rama09 [41]

Answer:a

Explanation:

Just took it

4 0
4 years ago
Measurements include
Keith_Richards [23]
There’s lots of measurements. (m, kg, s, mol, cm, in, mm) etc
8 0
4 years ago
WHEN A SOCCER PLAYER KICKS A BALL, THE BALL ACCELRATES. EXPLAIN WHAT CAUSES THIS ACCELERATION IN TERMS OF FORCES?
Nana76 [90]

Answer:

When we kick the ball, the force we apply to it causes it to accelerate from a speed of 0 to a speed of dozens of kilometers per hour. When the ball is released from the foot, it begins to decelerate (negative acceleration) due to the force of friction that is exerted upon it (as we observed in the previous example).

Explanation:

5 0
3 years ago
Other questions:
  • A reaction was conducted between barium nitrate and sodium phosphate. 3 Ba(NO3)2 + 2 Na3PO4 → 6 NaNO3 + Ba3(PO4)2 What is the pe
    9·1 answer
  • Explain how algae is indirectly essential to consumers in ecosystems, for example, polar bears.
    7·2 answers
  • What do the following areas of scientific understanding have in common? the understanding of the structure of the Solar System t
    8·1 answer
  • Number of SO2 molecules in 1.28 mol of SO2
    12·1 answer
  • Scientists can use chemicals to clean toxins from the soil. What does this<br> show about chemicals?
    8·1 answer
  • Help asap<br> 25.0 g Na =____ atoms Na
    14·1 answer
  • How are oxidation states of transition metals indicated in the names of metal
    5·2 answers
  • PLEASEEEE HELPPP??????
    8·2 answers
  • Hello guys pls help me!about the importance of a chemical compound !pls i need five point​
    5·1 answer
  • the two electrodes of an electrolytic cell are placed in a sample of molten zinc iodide. after a time, reddish-brown i2(s) begin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!