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
Irina-Kira [14]
3 years ago
15

Compute the values. Express these answers to the hundredths place (i.e., two digits after the decimal point). log ( 2.1 ) = ln (

2.1 ) = Solve for x and y in the given expressions. Express these answers to the tenths place (i.e., one digit after the decimal point). 0.62 = log ( x ) 0.62 = ln ( y )
Chemistry
1 answer:
zepelin [54]3 years ago
8 0

Answer:

x = 4.17

y = 1.86

Explanation:

0.62 = log(x)

x = 10^0.62 = 4.17 ( to the nearest hundredth)

0.62 = ln(y)

y = e^0.62 = 1.86 (to the nearest hundredth)

You might be interested in
Plz help me guys for 20 points 5th GRADE SCEINCE
Usimov [2.4K]
Option 3 using forest land to build homes
3 0
3 years ago
Read 2 more answers
Cyclopropene decomposes to propene when heated to 500 C, calculate rate constant for the first order reaction 0 min 1.48 mmol/L
Dmitry_Shevchenko [17]

Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

6 0
3 years ago
Rank the elements according to highest ionization energy:<br><br> Be, C, O, Ne, B, Li, F, N
aleksklad [387]
Given:
Be - Beryllium   -   9,3227
C   - Carbon      - 11,2603
O   - Oxygen      - 13,6181
Ne - Neon          - 21,5645
B   - Boron          -   8,298
Li  - Lithium        -   5,3917
F   - Fluorine      - 17,4228
N   - Nitrogen    - 14,5341

Arranged from highest ionization energy to lowest ionization energy.

Ne ; F ; N ; O ; C ; Be ; B ; Li
5 0
3 years ago
Read 2 more answers
What happens as a result of the photoelectric effect? A.light is produced
Brrunno [24]

Answer:

photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

3 0
1 year ago
Select the correct answer. Based on the reactivities of the elements involved, which reaction will form products that are more s
FinnZ [79.3K]

Answer: The correct answer is option B.

Explanation: Reactivity of elements is defined as the tendency to loose or gain electrons.

These reactions are a type of single displacement reactions. A single displacement reaction is a type of reaction in which an element displaces another element in a chemical reaction. These are studied with the help of reactivity series.

The element which lies above in the reactivity series can easily displace the element which lies below in the reactivity series.

Option A: This reaction will not yield a stable product because Zinc lies below Aluminium in the reactivity series.

AlBr_3+Zn\rightarrow \text{No reaction}

Option B: This reaction will yield a stable product because Sodium lies above Calcium in the reactivity series.

CaBr_2+2Na\rightarrow 2NaBr+Ca

Option C: This reaction will not yield a stable product because Hydrogen lies below Magnesium in the reactivity series.

MgBr_2+H_2\rightarrow \text{No reaction}

Option D: This reaction will not yield a stable product because Calcium lies below Barium in the reactivity series.

BaBr_2+Ca\rightarrow \text{No reaction}

Option E: This reaction will not yield a stable product because barium lies below Lithium in the reactivity series.

2LiBr+Ba\rightarrow \text{No reaction}

8 0
3 years ago
Other questions:
  • In a spontaneous reaction -
    7·1 answer
  • Which discovery did george mendel make
    6·1 answer
  • Justin B. Believes that the temperature lowering during the fall months is what causes the color of the leaves to change. He set
    9·1 answer
  • For every pound a company spends on advertising, it spends £0,75 on its website. Express the
    9·1 answer
  • HELP FAST PLZ!!!
    14·1 answer
  • Water has a specific heat of 4.186 J/g*C. How much energy would be required to raise the temperature of 10 g of water by 10 C?
    5·1 answer
  • Transverse waves move the medium perpendicular <br> true or false
    10·1 answer
  • 9.7300x10^2 + 9.8700x10^3 <br><br> ? × 10^?
    13·1 answer
  • How many electrons does an alpha particle contain
    10·1 answer
  • Can someone put their own numbers in this sentence and solve it? Thanks!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!