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
Luba_88 [7]
3 years ago
12

I'm giving 20 points! please it's for a friend not me

Chemistry
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

Three chemical elements: hydrogen, oxygen, and helium.

The difference between metals and metalloids is: metalloids have properties in between those of the metals and non-metals and are semiconductors.

The periodic table is organized by the elemts atomic number, it goes from the element with the lowest atomic number (which is hydrogen) to the element with the highest atomic number (oganesson)

Explanation:

Hope this helps :)

You might be interested in
A physician has ordered 0.50 mg of atropine, intramuscularly. If atropine were available as 0.25 mg/mL of solution, how many mil
sladkih [1.3K]
If 0.25mg of atropine is in 1mL
                  so
    0.50mg of atropine is in x

x=\frac{0.5mg*1mL}{0.25mg}=2mL
6 0
3 years ago
How many times greater is one gallon than one quart
horrorfan [7]
4, because there are 4 quarts in 1 gallon. 

Another way to think about it is 1 gallon= $1 and 1 quart= 25 cents 
There are 4 quarters in a dollar.

Hope this helped..
8 0
3 years ago
A student wanted to investigate the effect of light on the growth of
timofeeve [1]

Answer:

D.phototropism

Explanation:

Phototropism is a type of tropism in which a plant or plant part responds to light. According to this question, a student wanted to investigate the effect of light on the growth of cress seedlings. The student used three different pots for the experiment.

Pot 1 was placed with light from above. Pot 2 was placed in a cupboard with no light. Pot 3 was placed in a window with light from one direction only. However, the image attached to this question shows that the plants in the different pots face different directions in response to light, which depicts phototropism

5 0
3 years ago
Which of the following correctly lists the five atoms in order of increasing size (smallest to
ICE Princess25 [194]

Answer:

F - O - S - Mg - Ba

Explanation:

as you move left to right on the periodic table the number of electrons increase.

7 0
3 years ago
Someone please notice!! Explain the other parts such as the petal and receptacle do in the flower.
Troyanec [42]

Answer: well the receptacle connect the stalk to the flower and to support the flower and keeps the flower in an elevated position so as to attract the insects

Explanation: I don’t know if this helped

6 0
2 years ago
Other questions:
  • What is variable????​
    7·2 answers
  • Równania reakcji chemicznej
    13·1 answer
  • A strand of hair is approximately 50 μm thick. If the diameter of an atom is 1 × 10-10 m, how many atoms thick is a strand of ha
    13·2 answers
  • The molecule h2so4is ionized to h+ ions and so4- ions in water. would you predict this to result in a solution that is acidic or
    14·1 answer
  • Write the molecular equation and net ionic equation for the reaction of hydroiodic acid and potassium hydroxide. Include phases
    8·1 answer
  • Alpha-tocopherol is another name for ...
    13·1 answer
  • Most of the costs associated with using renewable resources are due to
    12·1 answer
  • You are visiting your Great Aunt Agnes. She is about 65 years
    13·1 answer
  • The specific heat of water is 4.184 J/g·K. How much energy must be added to 100.0 g of water to raise the temperature of water f
    12·1 answer
  • HELPPP PLS ILL GIVE 100 POINTS PLUS BRAINLY
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!