{ "@context": "https://schema.org", "@type": "Organization", "name": "Brainscape", "url": "https://www.brainscape.com/", "logo": "https://www.brainscape.com/pks/images/cms/public-views/shared/Brainscape-logo-c4e172b280b4616f7fda.svg", "sameAs": [ "https://www.facebook.com/Brainscape", "https://x.com/brainscape", "https://www.linkedin.com/company/brainscape", "https://www.instagram.com/brainscape/", "https://www.tiktok.com/@brainscapeu", "https://www.pinterest.com/brainscape/", "https://www.youtube.com/@BrainscapeNY" ], "contactPoint": { "@type": "ContactPoint", "telephone": "(929) 334-4005", "contactType": "customer service", "availableLanguage": ["English"] }, "founder": { "@type": "Person", "name": "Andrew Cohen" }, "description": "Brainscape’s spaced repetition system is proven to DOUBLE learning results! Find, make, and study flashcards online or in our mobile app. Serious learners only.", "address": { "@type": "PostalAddress", "streetAddress": "159 W 25th St, Ste 517", "addressLocality": "New York", "addressRegion": "NY", "postalCode": "10001", "addressCountry": "USA" } }

Revision Y7 Flashcards

CHemistry (28 cards)

1
Q

What is a atom?

A

The smallest part of a chemical element that can exist.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a compound?

A

It is a substance made up of atoms of two or more substances.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a element?

A

It is an substance that cannot be broken down into other substances.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a period?

A

A row of chemical elements in the Periodic Table.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a chemical change?

A

A change that makes new chemical substances.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is oxidation?

A

A reaction where oxygen is added to a substance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What element has one carbon atom and two oxygen atoms?

A

Carbon Dioxide.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Physical change?

A

A reversible change such as melting or boiling.

Eg.Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What atoms are in carbon dioxide?

A

One carbon atom and two Oxygen atoms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name 5 elements in the Periodic Table.

A

Copper,Carbon ,Calcium, Aluminium and Chlorine.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the meaning of Combustion?

A

When fuels burn in chemical reactions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the meaning of endothermic?

A

It is when a substance has turned cold.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does exothermic mean?

A

When a substance has turned hot.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the reactant and product of Carbon Dioxide?

A

Carbon + Oxygen = Carbon dioxide

Reactant+Reactant = Product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a chemical reaction?

A

It is a change in which atoms are rearranged to create new substances.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How would you know if a solution is concentrated?

A

It will have more acids in it.

17
Q

What does corrosive mean?

A

It will mean that it may burn skin and eyes.

18
Q

An acid has a PH of…

19
Q

An alkali has a PH of…

20
Q

What PH would it be if it was neutral?

21
Q

What is an universal indicator?

A

It is a mixture of dyes. It changes colour to show how acidic or alkaline it is.

22
Q

Name three types of acids.

A

Lemon juice, Vinegar and Coke.

23
Q

Name three types of alkaline.

A

Toothpaste, drain cleaner and milk of magnesia.

24
Q

How do you know if it is a chemical reaction?

A

If it has foul stink or sweet smell, has sparks or big fire, if you hear a pop or fizz and if you feel it getting hotter or colder.

25
When handling something corrosive what protective kit should you wear?
Wear safety googles to avoid eyes from burning.
26
What is a base?
A base is a substance that neutralises acids.
27
What happens in a neutralisation reaction?
In a neutralisation reaction an acid reacts with a substance that cancels it out. The PH gets closer to 7.
28
What does decomposition reaction?
A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds.