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xxMikexx [17]
4 years ago
15

Please, I need at least accurate answers for my Sound Knowledge Check for my Science class.

Chemistry
2 answers:
mrs_skeptik [129]4 years ago
8 0
Pretty sure it’s absorption
Alla [95]4 years ago
5 0

Answer:

1.A

2.A

3.C

4.C

5.B

6.A

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While both comets and asteroids are found to orbit the sun in our solar system which system which choice correctly explain how t
Alika [10]

Answer:

Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

Explanation:

thats how they are different from each other

6 0
3 years ago
To squeeze gas into a smaller space
Nadya [2.5K]
To squeeze a gas into a dmaller place is to compress it.
6 0
3 years ago
Unlike an acid, an aqueous solution of a base
HACTEHA [7]

Answer:

D) contains more OH– ions than H+ ions

Explanation:

THESE ARE THE OPTIONS FOR THE QUESTION

A) causes some indicators to change color B) conducts electricity C) contains more H+ ions than OH– ions D) contains more OH– ions than H+ ions

Base can be regarded as substance which can dissociates in water then form hydroxide ions (OH–) .

Bases can be regarded as compounds which break into hydroxide ions I.e (OH-) with more other compounds if put in an aqueous solution. Hence it contains more OH– ions

3 0
3 years ago
Li + HNO3 > LiNO3 + H2 how do I balance it? Show work pls
azamat

Answer: The balanced equation is 2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}.

Explanation:

The given reaction equation is as follows.

Li + HNO_{3} \rightarrow LiNO_{3} + H_{2}

Number of atoms present on reactant side are as follows.

  • Li = 1
  • H = 1
  • NO_{3} = 1

Number of atoms present on product side are as follows.

  • Li = 1
  • H = 2
  • NO_{3} = 1

To balance this equation, multiply Li by 2 and HNO_{3} by 2 on reactant side. Also, multiply LiNO_{3} by 2 on product side.

Hence, the equation can be rewritten as follows.

2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}

Now, number of atoms present on reactant side are as follows.

  • Li = 2
  • H = 2
  • NO_{3} = 2

Number of atoms present on product side are as follows.

  • Li = 2
  • H = 2
  • NO_{3} = 2

As there are same number of atoms on both reactant and product side. Hence, the equation is now balanced.

Thus, we can conclude that the balanced equation is 2Li + 2HNO_{3} \rightarrow 2LiNO_{3} + H_{2}.

3 0
3 years ago
Describe all lab equipment which would be required if you wanted to heat a chemical to 1500ºC.
marissa [1.9K]
A very hot but containable and easy or legal container so it doesn't explode , thermometer but advanced so it doesn't burn and gloves maybe oven mitts and if u were doing it at home other safety equipment
7 0
4 years ago
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