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
dybincka [34]
3 years ago
6

Please help me with these... please

Chemistry
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

Nihonium is a radioactive, synthetic element about which little is known. It is classified as a metal and is expected to be solid at room temperature. The element, No. 113 on the Periodic Table of Elements, had previously been designated ununtrium, a placeholder name that means one-one-three in Latin.

Explanation:

hope i helped

You might be interested in
Can you plz help me thank you <br><br> dont be mean
Anton [14]

the fact that u would post ur whole test on here i see if u posting 3 but the whole test Girllllllllll

6 0
4 years ago
Calculate the hydroxide ion concentration [oh-] for human urine (ph = 6.2). notice this is about hydroxide.
igomit [66]

[OH⁻] = 1.6 × 10⁻⁸ mol / dm³

<h3>Explanation</h3>

By definition, [\text{H}^{+}] = 10^{-\text{pH}}, where [\text{H}^{+}] is the concentration of proton in the solution.

pH = 6.2 for this solution. As a result, [\text{H}^{+} = 10^{-6.2} = 6.31 \times 10^{-7} \; \text{mol} \cdot \text{dm}^{-3}.

[\text{H}^{+}] \cdot [\text{OH}^{-}] = \text{K}_w, where [\text{OH}^{-}] the concentration of hydroxide ions and \text{K}_w is the dissociation constant of water.

\text{K}_w = 10^{-14} \; \text{mol}\cdot \text{dm}^{-3} at 0.10 MPa and 25 °C. As a result, [\text{OH}^{-}] = \text{K}_w / [\text{H}^{+}] = 10^{14} / (6.31 \times 10^{-7}) = 1.6 \times 10^{-8} \; \text{mol}\cdot \text{dm}^{-3}.

5 0
3 years ago
The frequency light of 3.52*10-7
zimovet [89]

Answer:

The speed of light, c, equals the wavelength, λ (pronounced lambda), times the frequency, ν, (pronounced noo).

c=λν

c is a constant. It is usually given as 3.00×108 m/s or 3.00×1010 cm/s rounded to three significant figures.❤

7 0
3 years ago
Compared to ionic compounds, molecular compounds generally have
Stella [2.4K]
B. poor conductivity
3 0
3 years ago
75 ml of lemon juice are added to 50 ml of water. What is the percent by volume
natita [175]

Answer:

60%

Explanation:

Solute = the fruit juice  = 75mL

Solution= solute + solvent = 75+50 = 125mL

% of solute = solute/ solution  × 100 %

= 75/125  × 100 %

= 3/5 × 100 %

= 3 × 20 %

= 60%

I hope this was helpful, please rate as brainliest

8 0
3 years ago
Read 2 more answers
Other questions:
  • Write a balanced equation depicting the formation of one mole of NaBr(s) from its elements in their standard states.
    11·1 answer
  • An atom has 18 protons, 18 electrons, and 20 neutrons. This atom has _____.
    6·5 answers
  • A bullet has a momentum of 3.2 kg*m/s. What is its mass if it is traveling at 762 m/s
    5·1 answer
  • When a radioactive isotope releases an alpha particle, the atomic number of the atom is
    15·1 answer
  • 1. Identify each of the following changes as endothermic, exothermic, or not possible to tell. The matter to keep in perspective
    11·1 answer
  • What is the result of two or more atoms forming chemical bonds with each other?
    10·1 answer
  • H3C - CH2 - CEC - CH3<br> Compound name
    9·1 answer
  • For the following reaction, provide the missing information
    7·1 answer
  • Looking at the name of an acid, how do you know if it only contains two
    6·1 answer
  • WILL GIEV BRAINLIST 2 BEST ASNWER
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!