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3 years ago

Scientific law

Chemistry

2 answers:

VARVARA [1.3K]3 years ago

8 0

More detail? If you can send it.

Lorico [155]3 years ago

5 0

A scientific law are statements, based on repeated experiments or observations.

A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method. (I’ll come back with more answers)

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What am I calculating for when solving for 17.0 mL of ethanol, density of ethanol= 0.94 g/mL

True [87]

Answer:

you are caculating for the mass/wight of ethanol

Explanation:

DxV=M

5 0

3 years ago

6.00g of gold was heated from 20.0c to 22.0c. How much heat was applied to the gold

Alinara [238K]

6 x .129 x 2= 1.55J
q = mass x specific heat x delta T.

5 0

2 years ago

Balance the equation by inserting coefficients as needed. equation: ZnS + HBr -> ZnBr_{2} + H_{2}S ZnS + HBr ⟶ ZnBr 2 + H 2 S

yawa3891 [41]

Answer : The balanced chemical reaction will be,

$ZnS+2HBr\rightarrow ZnBr_2+H_2S$

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

If the amount of atoms of each type on the left and right sides of a reaction differs then to balance the equation by adding coefficient in the front of the elements or molecule or compound in the chemical equation.

The coefficient tell us about that how many molecules or atoms present in the chemical equation.

The given chemical reaction is,

$ZnS+HBr\rightarrow ZnBr_2+H_2S$

This reaction is an unbalanced chemical reaction because in this reaction number of hydrogen bromine atoms are not balanced.

In order to balance the chemical equation, the coefficient '2' put before the $HBr$ and we get the balanced chemical equation.

The balanced chemical reaction will be,

$ZnS+2HBr\rightarrow ZnBr_2+H_2S$

8 0

3 years ago

How many ants would 6 giant anteaters need to eat in one year to get the matter and energy they need? Write a simple formula to

prohojiy [21]

Answer:

180,000 ants

Explanation:

For this problem we can create the following simple formula to solve this problem...

f(x) = 6x

where the variable x represents the number of ants that a single Anteater needs to eat per day. After a quick online search we can see that a single Anteater eats roughly 30,000 ants per day. If we use this value and plug it into the simple formula we can get the total number of ants 6 anteaters need to eat to survive.

f(x) = 6 * 30,000

f(x) = 180,000

7 0

3 years ago

Calculate the volume of 0.684mol of carbon dioxide at s.t.p. show working

solong [7]

Answer: The volume of 0.684 mol of carbon dioxide at s.t.p. is 15.3 L

Explanation:

According to ideal gas equation:

$PV=nRT$