Pregunta 1
Pregunta
What seperation method does this diagram represent?
Respuesta
-
Decantation
-
Evaporation
-
Filtering
Pregunta 2
Pregunta
What seperation method does this diagram represent?
Respuesta
-
Decanting
-
Filtering
-
Evaporation
Pregunta 3
Pregunta
What does this diagram show?
Pregunta 4
Pregunta
What does this image show?
Pregunta 5
Pregunta
Name the equipment and the seperation method.
Equipment names: filter funnel, filter paper, conical flask, filtrate,
Respuesta
-
filter funnel
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filter paper
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conical flask
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filtrate
-
filtering
Pregunta 6
Pregunta
Hydrochloric acid + lithium hydroxide = lithium chlorate + water.
Hint: look at the spelling carefully!
Pregunta 7
Pregunta
Sulphuric acid + potassium hydroxide = potassium sulphate + water.
Pregunta 8
Pregunta
Nitric acid + sodium hydroxide = nitric sodiumoxide + water.
Pregunta 9
Pregunta
Nitric acid + beryllium hydroxide = beryllium chloride + water.
Pregunta 10
Pregunta
What are possible pH values for acidic substances?
Pregunta 11
Pregunta
What are possible pH values for neutral substances?
Pregunta 12
Pregunta
What are the possible pH values for basic (alkali) substances?
Pregunta 13
Pregunta
Foods webs/chains have to start with a...
[More than one right answer!]
Respuesta
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carnivore
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herbivore
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plant
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producer
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hexiducer
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animal
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Dante
Pregunta 14
Pregunta
Ways that marine [blank_start]ecosystems[blank_end] are affected by chemical spills:
- Habitats of [blank_start]organisms[blank_end] are destroyed, so they have no [blank_start]shelter[blank_end] and die.
- [blank_start]Oil[blank_end] or similar pollutants coats the animal, so it can no longer catch [blank_start]pray[blank_end]. As a result, it will [blank_start]starve[blank_end] and die.
- The food source of predators is [blank_start]reduced[blank_end], which [blank_start]affects[blank_end] all the organisms in the web.
Respuesta
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fishes
-
animals
-
ecosystem
-
people
-
organisms
-
neturalists
-
habitats
-
shelter
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homes
-
Oil
-
Corn syrup
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Acidic water
-
prey
-
Sam
-
kelp
-
commit suicide
-
starve
-
eat its nipples
-
reduced
-
unchanged
-
increased
-
effects
-
affects
-
infects
Pregunta 15
Pregunta
When comparing filtering, evaporating, and decanting, which seperation methods could be described by each statement?
a. Seperates an insoluble solid from a liquid. [blank_start]Filtering & Decanting[blank_end]
b. Seperates a soluble solid from a liquid. [blank_start]Evaporating[blank_end]
c. Uses different densities to seperate. [blank_start]Decanting[blank_end]
d. Uses differing boiling points to seperate. [blank_start]Evaporating[blank_end]
e. Uses different particle sizes to seperate. [blank_start]Filtering[blank_end]
f. Can be used to seperate two different liquids. [blank_start]Decanting & Evaporating[blank_end]
g. Both substances are collected when seperated. [blank_start]Decanting & Filtering[blank_end]
Respuesta
-
Evaporating
-
Filtering
-
Decanting
-
Filtering
-
Decanting
-
Evaporating
-
Decanting
-
Evaporating
-
Filtering
-
Decanting
-
Filtering
-
Evaporating
-
Filtering & Decanting
-
Filtering & Evaporation
-
Evaporation & Decanting
-
Evaporating & Filtering
-
Evaporating & Decanting
-
Decanting & Filtering
-
Evaporating & Filtering
-
Evaporating & Decanting
-
Filtering & Decanting
Pregunta 16
Pregunta
Neutralisation is when an acid reacts with just enough [blank_start]base[blank_end] to form a [blank_start]solution[blank_end] with a [blank_start]pH value[blank_end] of exactly 7.
Pregunta 17
Pregunta
A mixture of sand and salt needs to be separated into individual piles. Put these steps in the appropriate order:
1. [blank_start]Add water[blank_end]
2. [blank_start]Decant the mixture[blank_end]
3. [blank_start]Filter the mixture[blank_end]
4. [blank_start]Heat the mixture over a Bunsen Burner[blank_end]
Pregunta 18
Pregunta
Biodiversity is the [blank_start]measure[blank_end] of the [blank_start]varirety[blank_end] of all different [blank_start]species[blank_end].
Pregunta 19
Pregunta
Label the parts of the flower.
Words: style, stigma, ovary, anther, ovule, filament, sepal, petal.
[Note: the ovule is the dot ON the ovule. The ovary is the dot in the ovary-area, but not on the ovules. To clear any confusion with the labels.]
Respuesta
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stigma
-
anther
-
filament
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petal
-
sepal
-
ovule
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style
-
ovary
Pregunta 20
Pregunta
Complete the equation showing neutralisation:
Acid + base > [blank_start]salt[blank_end] + [blank_start]water[blank_end]
Pregunta 21
Pregunta
Write an equation for calcium sulfate.
[blank_start]Sulfuric acid + calcium hydroxide[blank_end]
Respuesta
-
Sulfuric acid + calcium hydroxide
-
Calciumic acid + sulfur hydroxide
-
Sulfuric calcium + acidic hydroxide
Pregunta 22
Pregunta
Make an equation for iron chloride.
[blank_start]Hydrochloric acid + iron hydroxide[blank_end]
Respuesta
-
Hydrochloride acid + iron hydroxide
-
Hydrochloric acid + iron hydroxide
-
Hydrochlorate acid + iron hydroxide
Pregunta 23
Pregunta
Make an equation for magnesium nitrate.
[blank_start]Nitric acid + magnesium hydroxide[blank_end]
Respuesta
-
Nitride acid + magnesium hydroxide
-
Nitrate acid + magnesium hydroxide
-
Nitric acid + magnesium hydroxide
Pregunta 24
Pregunta
A food web is many food [blank_start]chains[blank_end] joined together.
Arrows on a food web show the [blank_start]flow[blank_end] of energy from one [blank_start]organism[blank_end] to the next.
All food chains start with [blank_start]producers[blank_end].
Words: organism, flow, producers, chains.
Respuesta
-
organism
-
flow
-
chains
-
producers