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
zalisa [80]
3 years ago
8

Can anyone solve #2 or #3 i cannot figure them out

Chemistry
1 answer:
kompoz [17]3 years ago
8 0

Answer:

sorry,,,,I can't

Explanation:

You might be interested in
Provide examples of physical weathering and chemical weathering in the chart below
Assoli18 [71]
Physical: abrasion, crystallization, insolation, melting and freezing.
Chemical: hydration, oxidation(rust), carbonic acid action, and hydrolysis
3 0
3 years ago
Enter the chemical formula for water. formula:
Gennadij [26K]
H2O ....................
8 0
3 years ago
Read 2 more answers
This boggled my brain plzzz help❤
Andrew [12]

A is combustion

B is Combination

C is double replacement

D is decomposition

E is combination

.

3 0
3 years ago
Simple question ill name u brainiest
BigorU [14]

Answer:

Test tube :)

Explanation:

4 0
3 years ago
Read 2 more answers
Americium-241 is used in smoke detectors. it has a first order rate constant for radioactive decay of k=1.6×10−3yr−1. by contras
Helga [31]
This question is missing the part that actually asks the question. The questions that are asked are as follows:

(a) How much of a 1.00 mg sample of americium remains after 4 day? Express your answer using 2 significant figures.

(b) How much of a 1.00 mg sample of iodine remains after 4 days? Express your answer using 3 significant figures.

We can use the equation for a first order rate law to find the amount of material remaining after 4 days:

[A] = [A]₀e^(-kt)

[A]₀ = initial amount
k = rate constant
t = time
[A] = amount of material at time, t.

(a) For americium we begin with 1.00 mg of sample and must convert time to units of years, as our rate constant, k, is in units of yr⁻¹.

4 days x 1 year/365 days = 0.0110

A = (1.00)e^((-1.6x10^-3)(0.0110))
A = 1.0 mg

The decay of americium is so slow that no noticeable change occurs over 4 days.

(b) We can simply plug in the information of iodine-125 and solve for A:

A = (1.00)e^(-0.011 x 4)
A = 0.957 mg

Iodine-125 decays at a much faster rate than americium and after 4 days there will be a significant loss of mass.
7 0
3 years ago
Other questions:
  • Which of these phrases accurately describe disproportionation? Check all that apply. A single compound reacts with itself. A sin
    11·2 answers
  • How many moles of Carbon are in 2.4 moles of C₆H₆
    13·1 answer
  • Need help with this question
    13·1 answer
  • Solve the question that follows using the equation for the conversion of Celsius to Fahrenheit. F=95(C)+32 On February 9, 1934,
    8·1 answer
  • The solubility of in water at a certain temperature is 35.7 g /100. g . Suppose that you have 330.0 g of . What is the minimum v
    15·1 answer
  • Complete the following road map for converting volume of A to volume of B for a titration of aqueous solution A with aqueous sol
    8·1 answer
  • A tissue is a group of ____________ organized to perform a specific function.
    14·2 answers
  • When the volume of a gas is
    15·1 answer
  • A case of paper has a mass of 2000 g. A case of paper contains 10 reams of paper. One ream of paper is 500 sheets. What is the m
    8·1 answer
  • Calcium dihydrogen phosphate, Ca(H₂PO₄)₂, and sodium hydrogen carbonate, NaHCO₃, are ingredients of baking powder that react to
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!