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
Finger [1]
3 years ago
9

Please help on my test

Chemistry
1 answer:
Alisiya [41]3 years ago
5 0

Answer:

C

Explanation:

You might be interested in
In the following list, only is not an example of a chemical reaction
Sladkaya [172]

There is no pictu-res...sss
4 0
3 years ago
3. The opening that allows light to enter the eye is the
xxMikexx [17]

Answer:

A)  Iris

Explanation:

The Iris controls the diameter of the opening in your eye, thus also controlling the amount of light let inside. It's also reponsible for the colour of you eye.

4 0
3 years ago
Read 2 more answers
I need help doing this please. It’s an image
Ne4ueva [31]

Answer:

k+

Ba2+

Al3+

K+

S2-

you may think that if it has a + it would be bigger, but it is actually the opposite.

5 0
3 years ago
It is the difference in the r group that makes each amino acid chemically unique. it is the difference in the r group that makes
babymother [125]
True.brain is lots of chemical reaction
4 0
3 years ago
Read 2 more answers
3.00 L of a gas is collected at 35.0°C and 705.0 mmHg. What is the volume at STP?
makvit [3.9K]

Answer:

2.47L

Explanation:

Using the combined gas law equation as follows:

P1V1/T1= P2V2/T2

Where;

P1 = initial pressure (mmHg)

P2 = final pressure (mmHg)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question;

P1 = 705mmHg

P2 = 760mmHg (STP)

V1 = 3.00L

V2 = ?

T1 = 35°C = 35 + 273 = 308K

T2 = 273K (STP)

Using P1V1/T1= P2V2/T2

705 × 3/308 = 760 × V2/273

2115/308 = 760V2/273

Cross multiply

308 × 760V2 = 2115 × 273

234,080V2 = 577,395

V2 = 577,395 ÷ 234,080

V2 = 2.47L

8 0
3 years ago
Other questions:
  • feel free to answer any of these. i need the answer to the appropriate amount of significant figures on this pleasee
    5·1 answer
  • Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.
    15·1 answer
  • A certain ore is 20.7% nickel by mass. How many kilograms of this ore would you need to dig up to have 70.0 g of nickel?
    15·1 answer
  • 1. The density of a substance is 4.8 g/mL. What is the volume of a<br> sample that is 19.2 g?
    14·1 answer
  • Koi mera aake chus lo Aur heela bhi do​
    15·2 answers
  • What is the molarity of a solution that has .8 mols of solute in .5 L of water?
    5·2 answers
  • When 2.35 g of potassium reacts with excess water, what mass of hydrogen gas is formed?
    14·1 answer
  • Which part(s) of a microscope forms an enlarged image of a specimens?
    7·2 answers
  • What is represented by the dashed blue line and the solid black line in the image below? motion,vectors,scalars,distance,displac
    7·1 answer
  • Give reasons.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!