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zmey [24]
3 years ago
6

Help me please i need this aaaaaaaaa <3

Chemistry
2 answers:
Shtirlitz [24]3 years ago
6 0

Answer:

1.magma forms beneath the plates and rises up through the cracks

2. the tectonic plates move apart from one another

3. lava flows onto Earth’s surface

4. lava cools and hardens to form igneous rock

Explanation:

mylen [45]3 years ago
4 0
Can someone help me out too? , on my question?
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Given the following balanced equation, if the rate of O2 loss is 3.64 × 10-3 M/s, what is the rate of formation of SO3? 2 SO2(g)
Fynjy0 [20]

Answer:

Rate of formation of SO₃ [\frac{d[SO_{3}] }{dt}] = 7.28 x 10⁻³ M/s

Explanation:

According to equation   2 SO₂(g) + O₂(g) → 2 SO₃(g)

Rate of disappearance of reactants = rate of appearance of products

                     ⇒ -\frac{1}{2} \frac{d[SO_{2} ]}{dt} = -\frac{d[O_{2} ]}{dt}=\frac{1}{2} \frac{d[SO_{3} ]}{dt}  -----------------------------(1)

    Given that the rate of disappearance of oxygen = -\frac{d[O_{2} ]}{dt} = 3.64 x 10⁻³ M/s

             So the rate of formation of SO₃ [\frac{d[SO_{3}] }{dt}] = ?

from equation (1) we can write

                                   \frac{d[SO_{3}] }{dt} = 2 [-\frac{d[O_{2}] }{dt} ]

                                ⇒ \frac{d[SO_{3}] }{dt} = 2 x 3.64 x 10⁻³ M/s

                                ⇒ [\frac{d[SO_{3}] }{dt}] = 7.28 x 10⁻³ M/s

∴ So the rate of formation of SO₃ [\frac{d[SO_{3}] }{dt}] = 7.28 x 10⁻³ M/s

7 0
3 years ago
Muscle contraction is triggeredA) in response to an increase in the cytoplasmic Ca2+concentration.B) in response to a decrease i
natima [27]

Answer:

A) in response to an increase in the cytoplasmic Ca2+concentration.

Explanation:

Muscle contraction occurs in response to an increase in the cytoplasmic Ca2 + concentration.

This process occurs with the shortening of the sarcomeres resulting in a result, the actin filaments react with myosin, generating actomyosin. During this reaction, it is necessary to increase the cytoplasmic concentration of Ca + and ATP. In this, myosin will break down ATP, releasing energy so that the muscle can contract.

4 0
3 years ago
In a periodic table, dots around an elements symbol indicate the number of valence electrons in an atom ? True Or False
Liono4ka [1.6K]
True,I think.(so don't really count on my answer sorry :D)
6 0
3 years ago
Which activity is a function of the circulatory system?
Marta_Voda [28]

Answer:

A. move materials through the body

Explanation:

The blood circulatory system (cardiovascular system) transports materials and delivers nutrients and oxygen to all cells in the body.

8 0
3 years ago
Which of the following plant structures provides most of the water necessary for photosynthesis?
erica [24]

Answer:

Explanation:

a:)

5 0
3 years ago
Read 2 more answers
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