subject

Chemistry, 24.02.2022 14:00 justalikri

An amount equaling 28 kilograms of a radioactive substance has a half-life of 10 years. How many years will it take the substance to decay naturally to only 7 kilograms

ansver

Answers: 3

Show answers

Another question on Chemistry

question

Chemistry, 22.06.2019 04:00

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal

Answers: 2

question

Chemistry, 22.06.2019 11:00

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation

Answers: 1

question

Chemistry, 22.06.2019 12:30

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml

Answers: 1

question

Chemistry, 22.06.2019 13:30

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

Answers: 2

You know the right answer?

An amount equaling 28 kilograms of a radioactive substance has a half-life of 10 years. How many yea...

Questions

question

Social Studies, 04.07.2020 14:01

What does Loftus mean when she states that, "Memory is like a Wikipedia page?" Describe in good detail two examples given by Loftus that demonstrate h...

question

Mathematics, 04.07.2020 14:01

Find f(x) + g(x), f(x) − g(x), f(x) · g(x), and f(x)/g(x). f(x) = x2 + 13x + 42 g(x) = x + 6 (a) f(x) + g(x) (b) f(x) − g(x) (c) f(x) · g(x) (d) f(x)/...

question

Mathematics, 04.07.2020 14:01

A convex polygon has 7 sides and one angle at each vertex. What is the sum of the measure of its exterior angles? Type in your response.

question

Business, 04.07.2020 14:01

Over the past four years, a stock produced returns of 13 percent, −9 percent, 8 percent, and 14 percent, respectively. Based on these four years, what...

question

Mathematics, 04.07.2020 14:01

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an...

question

Mathematics, 04.07.2020 14:01

The weights of a certain brand of candies are normally distributed with a mean weight of .8551 g and a standard deviation of 0.0518 g. A sample of the...

question

Physics, 04.07.2020 14:01

Is the friction of the pendulum (catch mechanism, support axis, etc.) a random or systematic error? Will this source of error cause your calculated ve...

question

Business, 04.07.2020 14:01

Megginson, Inc. issued a five-year corporate bond of $300,000 with a 5% interest rate for $290,000. What effect would the bond issuance have on Meggin...

question

Business, 04.07.2020 14:01

19165/[214,000/FastForward had cash inflows from operations of $64,000; cash outflows from investing activities of $48,500; and cash inflows from fina...

question

Business, 04.07.2020 14:01

The Accounts Payable account has a $3,700 credit balance. An entry for the payment of $1,350 on the amount owed is recorded and posted. The new balanc...

question

Business, 04.07.2020 14:01

AllCity, Inc., is financed 36 % with debt, 14 % with preferred stock, and 50 % with common stock. Its cost of debt is 5.7 %, its preferred stock pays...

question

Chemistry, 04.07.2020 14:01

PdPd has an anomalous electron configuration. Write the observed electron configuration of PdPd. Express your answer in complete form in order of orbi...

question

Mathematics, 04.07.2020 14:01

g Four distinct numbers are to be selected from the list {−5, −4, −3, −2, −1, 1, 2, 3, 4}. In how many ways can this selection be done so that the pro...

question

Physics, 04.07.2020 14:01

A rock, dropped from rest near the surface of an atmosphere-free planet, attains a speed of 20.0 m/s after falling 8.0 meters. What is the magnitude o...

question

Business, 04.07.2020 14:01

A $ 43 comma 000,twominusmonth,10%note payable was issued on December 1, 2018. What is the amount of interest expense recorded in the year 2019? (Roun...

question

Business, 04.07.2020 14:01

identified an investment project with the following cash flows. Year Cash Flow 1 $850 2 1,190 3 1,450 4 1,600 a. If the discount rate is 7 percent, wh...

question

Biology, 04.07.2020 14:01

A 56-year old man is scheduled for a physical examination. In order to obtain a fasting blood sample, his physician tells him not to eat after 8:00 PM...

question

Business, 04.07.2020 14:01

BMX Company has one employee. FICA Social Security taxes are 6.2% of the first $118,500 paid to its employee, and FICA Medicare taxes are 1.45% of gro...

question

Health, 04.07.2020 14:01

A nursing instructor is developing a class lecture that compares and contrasts schizoaffective disorder with schizophrenia. When describing one of the...

question

Biology, 04.07.2020 14:01

While viewing stained onion root tip cells you notice that distinct chromosomes cannot be observed in most of the cells. This is because most of the c...

More questions: Chemistry Another questions

Questions on the website: 13722363