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
Y_Kistochka [10]
3 years ago
8

I NEED HELP WITH MY SCIENCE ASAP PLS SOMEONE HELP FAST!

Chemistry
1 answer:
g100num [7]3 years ago
5 0

Answer:

Astatine

Atomic #: 85

Protons: 85

Neutrons:125

You might be interested in
Which of the following keeps satellite in orbit
BabaBlast [244]

Answer:

Gravity

Explanation:

Without gravity it would just float in space.

Please mark brainliest, i need two more to achieve expert

4 0
3 years ago
Calculate the molarity of a solution made by adding 120 g of naoh (40.00 g/mol) to enough water to make 500.0 ml of solution. g
sertanlavr [38]

An: Calculate the molarity of a solution made by adding 120 g of NaOH (40.00 g/mol) to enough water to make 500.0 mL of solution. a) 4.0 M b) 6.0 M c) 1.0 ...

Explanation:

7 0
2 years ago
How much heat is gained when a 50.32g piece of aluminum is heated from 9.0°c to 16°c
Rashid [163]

Answer: 317 joules

Explanation:

The quantity of heat energy (Q) gained by aluminium depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

In this case,

Q = ?

Mass of aluminium = 50.32g

C = 0.90J/g°C

Φ = (Final temperature - Initial temperature)

= 16°C - 9°C = 7°C

Then, Q = MCΦ

Q = 50.32g x 0.90J/g°C x 7°C

Q = 317 joules

Thus, 317 joules of heat is gained.

5 0
4 years ago
Read 2 more answers
What is the most corrosive element in the periodic table?
Fittoniya [83]

Answer:

Fluorine is the most corrosive element in the periodic table.

Explanation:

4 0
3 years ago
Read 2 more answers
The water released by the reaction (mass = 0.00020 g) was calculated as was the
olga55 [171]
I’m not to sure but let me figure it out hold up
7 0
3 years ago
Other questions:
  • 1. What volume of toluene do you need to add to 1 mL of ethyl acetate to make an equi-molar mixture? The density of ethyl acetat
    11·1 answer
  • The solubility of kcl in ethanol is 0.25 g / 100 ml at 25 oc. how does this compare to the solubility of kcl in water?
    6·1 answer
  • Magnesium oxide decomposes into magnesium and oxygen. if 12.09 g of magnesium oxide decomposes to form 7.29 g of magnesium, what
    14·1 answer
  • If a 0.710 m 0.710 m aqueous solution freezes at − 2.00 ∘ C, −2.00 ∘C, what is the van't Hoff factor, i , i, of the solute?
    14·1 answer
  • The number of protons in an uncharged atom _____. the number of protons in an uncharged atom _____. determines its mass number e
    9·1 answer
  • Which property of a substance can be determined using a pH indicator?
    15·2 answers
  • How many moles of neon (Ne) gas have a volume of 0.84 L and a pressure of
    10·1 answer
  • Working with one sample at a time, add water to the glass one tablespoon at a time. Water should soak the sample from the bottom
    6·1 answer
  • Determine the pH, pOH, [H+], and [OH−] of a solution in which 0.300 g of aluminum hydroxide is dissolved in 184 mL of solution.
    15·1 answer
  • How many molecules are in 3.8 grams of c6h6
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!