![subject](/tpl/images/cats/himiya.png)
Chemistry, 19.01.2021 17:00 richardharding
The colourless coating on a photographic film contains a chemical substance which reacts upon exposure to light, causing the film to darken. Which of the following substances is present in the darkened parts of the film?
A. Bromine
C. Silver
B. Carbon
D. Silver bromide
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 14:30
Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:30
Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:00
The arrangement of particles is most ordered in a sample of
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
You know the right answer?
The colourless coating on a photographic film contains a chemical substance which reacts upon exposu...
Questions
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 19:20
![question](/tpl/images/cats/biologiya.png)
Biology, 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 22.04.2021 19:20
![question](/tpl/images/cats/fizika.png)
Physics, 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2021 19:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)