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Phoenix [80]
2 years ago
15

The half-life of radon-222 is 3.8 days. How many grams of radon-222 remain

Chemistry
1 answer:
Ne4ueva [31]2 years ago
3 0
I think it’s B but not 100% sure
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What does vegetative propagation mean?​
SSSSS [86.1K]

Vegetative propagation is a form of asexual reproduction of a plant. Only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent. i hope this helped <3

7 0
3 years ago
using the same balanced equation, what is the number of moles of carbon dioxide produced from 3.750 moles of propane?
kondor19780726 [428]

Answer:

11.25moles of CO2

Explanation:

First, let us generate a balanced equation for the reaction of propane to produce CO2. This reaction called Combustion. It is a reaction in which propane burns in air (O2) to produce CO2 and H20. The equation is given below:

C3H8 + 5O2 —> 3CO2 + 4H2O

From the equation,

1mole of C3H8 produced 3moles of CO2.

Therefore, 3.750 moles of C3H8 will produce = 3.750 x 3 = 11.25moles of CO2

5 0
3 years ago
Write the word equation for the chemical reaction: Zn(s)+2HCl2(aq)---&gt;ZnCl2(aq)+H2(g)
Vikki [24]
Zn(s) + 2HCl(aq) = ZnCl₂(aq) + H₂(g)

zinc + hydrochloric acid = zinc chloride + hydrogen
4 0
3 years ago
Calculate the empirical formula the compound with the following percent composition: 27.59%C 1.15%H 16.09%N 55.17%O
jeyben [28]

Answer: C2HNO3

Explanation: C = 27.59/12.011 = 2.297

H = 1.15/1.008 = 1.1409

N = 16.09/14.007 = 1.1487

O = 55.17/15.999 = 3.4483

Divide by smallest result:

C = 2

H=1

N=1

O = 3

Empirical formula = C2HNO3

8 0
3 years ago
Is Orange Juice with Pulp is Heterogeneous<br> or Homogeneous Mixture?
nalin [4]

Answer:

I think so henterogeneous

8 0
3 years ago
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