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
jekas [21]
3 years ago
10

The closest hominin to a current day human is?

Chemistry
1 answer:
bearhunter [10]3 years ago
8 0
Fjjjjhmjfdtkfibfhbhdddddffffff
You might be interested in
I need help asap!!!!!!!!
maksim [4K]

Answer:

A

Explanation:

add 22 with the answers like A, 33+22=55

6 0
2 years ago
Phosphorus-32 is radioactive and has a half life of 14.3 days. What percentage of a sample would be left after 12.6 days
nadya68 [22]

Answer:

There is 54.29 % sample left after 12.6 days

Explanation:

Step 1: Data given

Half life time = 14.3 days

Time left = 12.6 days

Suppose the original amount is 100.00 grams

Step 2: Calculate the percentage left

X = 100 / 2^n

⇒ with X = The amount of sample after 12.6 days

⇒ with n = (time passed / half-life time) = (12.6/14.3)

X = 100 / 2^(12.6/14.3)

X = 54.29

There is 54.29 % sample left after 12.6 days

8 0
3 years ago
If you burn 50.6 g of hydrogen and produce 452 g of water, how much oxygen reacted?
Svetllana [295]
Acc. to Law of Conservation of Mass
Mass of reactants=Mass of Products
Let mass of Oxygen be x.
So,
50.6+x=452
x=452-50.6
=401.4 g
4 0
3 years ago
If you performed this experiment using mgcl2 as the solute would the molar concentration of mgcl2 that is isotonic to the potato
Mama L [17]
The answer to this question would be: lower molar concentration

Osmotic pressure is influenced by the number of ions and the concentration of the molecule in the solution. In NaCl, the molecule will split into 1 Na+ ion and 1 Cl- ion which results in 2 ions per compound. In MgCl2, the compound will split into 1 Mg2+ ion and 2 Cl- ion which results in 3 ions. Therefore, the osmotic pressure of MgCl2 will be 3/2 times of NaCl.
MgCl2 will need less concentration to achieve same osmotic pressure as NaCl. If the MgCl2 solution is isotonic with NaCl, the concentration of MgCl2 would be lower than NaCl
5 0
3 years ago
"You are asked to classify an exocrine gland found in the skin based solely on the chemical analysis of its product, which turns
Mice21 [21]

Answer:

sweat glands

Explanation:

sweat glands are the only ones that can produce dermcidin, Nacl, urea and ammonia.  

5 0
3 years ago
Read 2 more answers
Other questions:
  • Magma _____ to form igneous rock.
    5·1 answer
  • Which is the chemical formula for zinc phosphate
    7·1 answer
  • 1. If temperature is increased, the number of<br> collisions per second
    5·2 answers
  • In general which way does wind blow
    12·1 answer
  • 80g of sodium hydroxide reacts with excess sulfuric acid to produce 142g of sodium sulfate. What mass of sodium hydroxide would
    7·1 answer
  • Which of the following statements BEST describes a compound?
    9·1 answer
  • If my primary DNA strand is ATACCGCAA <br> a write the complimentary DNA strand
    10·2 answers
  • What is the difference between concentrated acid and a weak one?
    6·1 answer
  • What would ne the acceleration in a body moving wit uniform velocity and why​
    14·2 answers
  • If 125 cal are added to 56,0 g of solid iron, what is the change in temperature of the iron? The specific heat of iron
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!