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Ainat [17]
4 years ago
11

The variables _______ and ________ affect the gravitational force between objects.

Chemistry
2 answers:
olchik [2.2K]4 years ago
7 0

I took the USA Test Prep and it is C


anastassius [24]4 years ago
5 0
I think the answer is A
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What is known as the amount of<br> mass in a given volume?
Ganezh [65]

Answer:

Density

Explanation:

Density is a measure of how much mass is contained in a given volume

3 0
3 years ago
An element which forms an oxide that dissolves in water to form an acidic solution.
zzz [600]

Answer:

An Alkaline solution should be the answer to that.

8 0
3 years ago
The rate of reaction is fastest at the _______ of a chemical reaction
astraxan [27]

Answer:

Beginning or Start

Explanation:

Reactions can be followed by measuring changes in concentration, mass and volume of reactants or products. The rate is highest at the start of the reaction because the concentration of reactants is highest at this point.

Hope this helped! :^)

5 0
3 years ago
How much heat is required to raise the temperature of 67.0 g of water from its melting point to its boiling point?
vodka [1.7K]

When 67 g of water is heated from its melting point to its boiling point, it takes 28006 J of heat.

<h2>Relationship between heat production and temperature change</h2>
  • A way to numerically relate the quantity of thermal energy acquired (or lost) by a sample of any substance to that sample's mass and the temperature change that results from that is provided by specific heat capacity.

The following formula is frequently used to describe the connection between these four values.

q = msΔT

where, q = the amount of heat emitted or absorbed by the thing

m =  the object's mass = 67 gm

s =  a specific heat capacity of the substance = 4.18  J/gC

ΔT = the resultant change in the object's temperature = 373.15 -273.15K= 100 k

q = 67 * 4.18 * 100 J

⇒q = 28006 J

Therefore it is concluded that 67 g of water takes 28006 J of heat from its melting point to reach its boiling point.

Learn more about thermal energy here:

brainly.com/question/3022807

#SPJ1

3 0
3 years ago
1. EXPLAIN the steps required to find the molar mass of NH3 . Also,
Natasha_Volkova [10]

Answer: Molar mass of NH_3 is 17.03 g

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

It is found by adding the atomic masses of all the elements present.

Atomic Mass of Nitrogen (N) = 14.007 g

Atomic Mass of Hydrogen (H) = 1.008 g

Molar mass of NH_3 = 1(14.007)+3(1.008) g = 17.03 g

7 0
3 years ago
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