Na2S2O3 + KBrO3 + H2SO4 = Na2S4O6 + K2SO4 + Na2SO4 + Br2 + H2O
Answers
22 Na2S2O3 + 10 KBrO3 + 7 H2SO4 = 8 Na2S4O6 + 5 K2SO4 + 14 Na2HSO4 + 5 Br2
Related Questions
Which makes the phosphorus cycle different from the carbon cycles
Keisha finds instructions for a demonstration on gas laws.1. Place a small marshmallow in a large plastic syringe. 2. Cap the syringe tightly. 3. Pull the plunger back to double the volume of gas in the syringe. Which best describes the purpose and outcome of the demonstration?
example best shows that the chemistry of water is helpful to plants? Water’s polarity produces a high density, which allows water to move to the leaves. Water’s bent shape causes a slow passage of nutrients up to the leaves of plants. Water’s polarity causes cohesion that pulls other water molecules up through a plant. Water’s bent shape reduces its own passage through the cell membranes of roots.
Colligative properties area. chemical properties. b. physical properties. c. biological properties. d. none of these
B) Drug
C) Medicine
D) Screening Tool
Ohp xD nvm, the answer is A !
Answers
During the test trial, the sugar pill given to the control group is called a placebo. Therefore, the correct option is A. Placebo
What is a placebo ?
A placebo is any drug or a treatment with no active substances, for example a sugar pill.
During clinical trials, usually one group takes the actual drug while the other group takes the placebo without being aware of it.
Placebo is an inactive treatment given to a group of people that is made to look like the real drug, but in reality it simply makes the patient believe they're being treated with the drug and that the drug will help them relieve from the symptoms.
By comparing the results from the two groups, this method helps in analyzing the accurate effects of the drug on the patients and helps in proving that it was the drug that actually treated the symptom and that the treatment did not occur by chance or just a mere belief of the patient thinking they will get better because they're being treated.
This approach helps reduce bias and ensures that the trial's results are more accurate and reliable.
So, the sugar pill given to the control group is called a placebo. Therefore, the correct option is A. Placebo
To learn more about placebo, click on
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b. is an intrusive igneous rock
c. is an organic sedimentary rock
d. forms from regional metamorphism
Answers
Granite forms when magma cools slowly underground. Granite is an intrusive igneous rock. The answer is letter B. granite is composed mostly of quartz and feldspar with minor amounts of mica, amphiboles and other minerals.
(1) CH4 (3) C3H8
(2) C2H4 (4) C4H10
Answers
Answer: (2)
Explanation: Unsaturated organic compounds are those compounds which contains carbon-carbon double or triple bond.
Saturated organic compounds are those compounds which contains carbon-carbon single bond.
,
and
are all alkanes having general formula
containing single bonds.
is an alkene having general formula
containing double bonds.
From that we can see that:
CH4, C3H8 and C4H10 are saturated.
Therefore:
C2H4 is unsaturated. Answer is (2).
b. cacao
c. mangoes
d. coffee
Answers
Central American countries are important agricultural producers. Each year, the United States imports about five billion dollars’ worth of bananas.
NOT:
b. cacao
c. mangoes
d. coffee
correct answer is D COFFEE
correct answer is D COFFEE
correct answer is D COFFEE
´ 1 _____/60 _____ = 15 _____
Answers
Answer:
916.7 m/s
Explanation:
Given:
The value of speed = 55 km/hr
To determine:
The corresponding value in meters/second i.e m/s
Formula:
Step 1:
Convert km to m
1 km = 1000 m
Therefore, 55 km = 55 km * 1000 m/1 km = 55,000 m
The speed now is = 55,000 m/hr
Step 2:
Convert hr to sec
60 sec = 1 hr
Speed = 55,000 m/hr * 1 hr/60 sec = 916.7 m/s
(55 x 1000)/(60 x 60) =
55000/3600=
Answer: 15.28 m/sec