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Anastasy [175]
3 years ago
5

Which planetary body was opportunity designed to explore?

Chemistry
1 answer:
11111nata11111 [884]3 years ago
3 0
The rover was designed to explore A.Mars
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Plz help me with these three please please !!!!!
Novay_Z [31]

Explanation:

Cations are positively charged ions with fewer electrons than protons. To partake in reaction, metals lose electrons to achieve a stable octet configuration. It has lost valence electrons and wold have a positive charge associated with it.

Potassium is a group 1 element. A metal.

Potassium has 1 valence electron so it loses the valence electron to form a stable octet.

A potassium ion has a positive charge and therefore cannot be an anion but is a cation.

The group number pretty much denotes the number of valence electrons.

Group 1 = 1

Group 2 = 2

Group 17 = 7

Group 18 = 8

4 0
3 years ago
What is the density of object A? Does it sink<br> or float in water?
Oksana_A [137]

Answer:

~1.5 g/cm3 and it does NOT float in water.

Explanation:

If you look at the graph, Object A weighs ~6 grams and is ~4 cm3 in volume

Density = Mass/Volume

So 6 grams/4 cm3 = 1.5 g/cm3

Water has a density of 1 g/cm3 and because Object A density is higher than that of water, it sinks.

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What is basicity in acids?​
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Basicity of an acid is the number of hydrogen ions which can be produced by one molecule of an acid
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What is the difference between continuous and discontinuous variation?
jonny [76]
The difference between the two is that the values in discontinuous variation are fixed, while the values in continuous variation can be changed. :)
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I’m not sure but I think it’s powder mildew
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