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vichka [17]
3 years ago
11

How do you find the mass of an object?

Chemistry
2 answers:
krek1111 [17]3 years ago
8 0

Answer:

density/volume

Explanation:

Divide the object’s weight by the acceleration of gravity to find the mass.

andre [41]3 years ago
7 0
Mass=density×volume. Density is a measure of mass per unit of volume, so the mass of an object can be determined by multiplying density by volume.
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The rate of a hypothetical reaction involving L and M is found to double when the concentration of L is doubled and to increase
Semmy [17]

Answer: Rate=k[L]^1[M]^2

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

L+M\rightarrow products

Rate=k[L]^x[M]^y  (1)

k= rate constant

x = order with respect to L

y = order with respect to M

n =( x+y)= Total order

a)  If [L] is doubled, the reaction rate will increase by a factor of 2:

2\times Rate=k[2L]^x[M]^y   (2)

b)  If [M] is doubled, the reaction rate will increase by a factor of 4:

4\times Rate=k[L]^x[2M]^y   (3)

Dividing 2 by 1:

\frac{2\times Rate}{Rate}=\frac{k[2L]^x[M]^y}{k[L]^x[M]^y}

2=2^x

x=1

Dividing 3 by 1

\frac{4\times Rate}{Rate}=\frac{k[L]^x[2M]^y}{k[L]^x[M]^y}

4=2^y

2^2=2^y

y=2

Thus rate law is: k[L]^1[M]^2

4 0
4 years ago
What kind of wave is a sound wave? Why?
lara31 [8.8K]

Answer:

Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.

plz can i get brainliest:)

5 0
4 years ago
Which statements about salt water are true? Check all that apply.
Ymorist [56]

Salt water contains minerals other than salt.

The temperature of ocean water is affected by the depth of the water.

The temperature of ocean water is affected by the ocean’s location.

Objects float more easily in oceans than in lakes or rivers.

These are all of the true answers

6 0
3 years ago
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In the presence of excess iodide ions, the iodine formed by reaction of iodide with NBS will react further to form triiodide ion
KiRa [710]

Answer:

Starch.

Explanation:

When the triiodide combine with starch, it forms dark blue colour. Amylose in starch is responsible for the occurrence of a deep blue color when the iodine is combine with the starch. The iodine molecule goes inside of the amylose coil which makes a linear triiodide ion complex that goes into the coil of the starch that leads to an intense blue-black color in the end so we can say that starch turns the colour into blue.

4 0
3 years ago
What types of teeth do mammals have? Select the three correct answers.
mariarad [96]

Answer:

incisors, molars, canines.

Explanation:

All of these 3 teeth types appear in ourselves so in conclusion mammals. Plus there has never been gills in any mammal.

5 0
2 years ago
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