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3 years ago

How do disease causing organism reach from one organism to other

Chemistry

1 answer:

Anon25 [30]3 years ago

4 0

Answer:

Infectious diseases are commonly transmitted through direct person-to-person contact.

The main four pathogens are virus, bacteria, protists and fungi.

Bacteria, fungi and protists can reproduce wherever the conditions are warm, with plenty of moisture, nutrients, and space. Viruses can only reproduce by invading living cells.

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Gina pours some sugar in a hot pan. The sugar melts. She placesthe pan with the melted sugar in a cool place. The sugar hardens

Katena32 [7]

The sugar is melted like the magma then cooled to make the sugar hard like the magma cooling and hardening to for into a igneous rock

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4 years ago

What type of chemical reaction is:

Valentin [98]

Answer:

Synthesis

Explanation:

That's the answer to that question

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3 years ago

Read 2 more answers

3) (Solid magnesium carbonate mixed in a solution of dilute hydrochloric acid. Assume the

Virty [35]

<u>Answer:</u> The mass of magnesium carbonate that will be dissolved in the reaction is 6.99 g.

<u>Explanation:</u>

We are given:

Amount of heat released = 1950 J = 1.950 kJ (Conversion factor: 1 kJ = 1000 J)

The chemical equation for the reaction of magnesium carbonate and hydrochloric acid follows:

$MgCO_3+2HCl\rightarrow MgCl_2+H_2O+CO_2;\Delta H_{rxn}=-23.4kJ$

By Stoichiometry of the reaction:

If 23.4 kJ of heat is released, then 1 mole of magnesium carbonate is dissolved

So, when 1.950 kJ of heat is released, then = $\frac{1mol}{23.4kJ}\times 1.950kJ=0.083mol$ of magnesium carbonate is dissolved

To calculate the mass of the substance by given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of magnesium carbonate = 0.083 moles

Molar mass of magnesium carbonate = 84.3 g/mol

Putting values in above equation, we get:

$0.083mol=\frac{\text{Mass of magnesium carbonate}}{84.3g/mol}\\\\\text{Mass of magnesium carbonate}=0.083mol\times 84.3g/mol=6.99g$

Hence, the mass of magnesium carbonate that will be dissolved in the reaction is 6.99 g.

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3 years ago

What is the type of bond holding hydrogen and oxygen atoms together in a single h2o molecule? What is the type of bond holding h

LekaFEV [45]

It is a hydrogen bond

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3 years ago

Calculate the mass of water produced when 4.86 g of butane reacts with excess oxygen.

Black_prince [1.1K]

The mass of water produced when 4.86 g of butane(C4H10) react with excess oxygen is calculated as below

calculate the moles of C4H10 used = mass/molar mass

moles = 4.86g/58 g/mol =0.0838 moles
write a balanced equation for reaction

2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
by use of mole ratio between C4H10 to H2O which is 2:10 the moles of
H20= 0.0838 x10/2 = 0.419 moles of H2O

mass = moles x molar mass

=0.419 molx 18 g/mol = 7.542 grams of water is formed

6 0

3 years ago

How do disease causing organism reach from one organism to other​

How do disease causing organism reach from one organism to other